Keep thinking, keep alive

Until 2023-05-14 23:45:33, I have solved 46 / 2688 problems.

Completion statistic:

1. JavaScript: 28
2. Python: 17

Note: 🔒 means you need to buy a book from LeetCode

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LeetCode Solution Table

ID	Title	Difficulty	JavaScript	Python
1	Two Sum	Easy	JavaScript	To Do
2	Add Two Numbers	Medium	To Do	python
3	Longest Substring Without Repeating Characters	Medium	To Do	python
4	Median of Two Sorted Arrays	Hard	To Do	To Do
5	Longest Palindromic Substring	Medium	To Do	To Do
6	Zigzag Conversion	Medium	To Do	To Do
7	Reverse Integer	Medium	To Do	To Do
8	String to Integer (atoi)	Medium	To Do	To Do
9	Palindrome Number	Easy	To Do	To Do
10	Regular Expression Matching	Hard	To Do	To Do
11	Container With Most Water	Medium	To Do	To Do
12	Integer to Roman	Medium	To Do	To Do
13	Roman to Integer	Easy	To Do	To Do
14	Longest Common Prefix	Easy	To Do	To Do
15	3Sum	Medium	To Do	python
16	3Sum Closest	Medium	To Do	To Do
17	Letter Combinations of a Phone Number	Medium	To Do	To Do
18	4Sum	Medium	To Do	To Do
19	Remove Nth Node From End of List	Medium	To Do	To Do
20	Valid Parentheses	Easy	To Do	To Do
21	Merge Two Sorted Lists	Easy	To Do	To Do
22	Generate Parentheses	Medium	To Do	To Do
23	Merge k Sorted Lists	Hard	To Do	To Do
24	Swap Nodes in Pairs	Medium	To Do	To Do
25	Reverse Nodes in k-Group	Hard	To Do	To Do
26	Remove Duplicates from Sorted Array	Easy	To Do	To Do
27	Remove Element	Easy	To Do	To Do
28	Find the Index of the First Occurrence in a String	Easy	To Do	To Do
29	Divide Two Integers	Medium	To Do	To Do
30	Substring with Concatenation of All Words	Hard	To Do	To Do
31	Next Permutation	Medium	To Do	To Do
32	Longest Valid Parentheses	Hard	To Do	To Do
33	Search in Rotated Sorted Array	Medium	To Do	To Do
34	Find First and Last Position of Element in Sorted Array	Medium	To Do	To Do
35	Search Insert Position	Easy	JavaScript	To Do
36	Valid Sudoku	Medium	To Do	To Do
37	Sudoku Solver	Hard	To Do	To Do
38	Count and Say	Medium	To Do	To Do
39	Combination Sum	Medium	JavaScript	To Do
40	Combination Sum II	Medium	To Do	To Do
41	First Missing Positive	Hard	To Do	To Do
42	Trapping Rain Water	Hard	To Do	To Do
43	Multiply Strings	Medium	To Do	To Do
44	Wildcard Matching	Hard	To Do	To Do
45	Jump Game II	Medium	To Do	To Do
46	Permutations	Medium	To Do	To Do
47	Permutations II	Medium	To Do	To Do
48	Rotate Image	Medium	To Do	To Do
49	Group Anagrams	Medium	To Do	To Do
50	Pow(x, n)	Medium	To Do	To Do
51	N-Queens	Hard	To Do	To Do
52	N-Queens II	Hard	To Do	To Do
53	Maximum Subarray	Medium	To Do	To Do
54	Spiral Matrix	Medium	To Do	To Do
55	Jump Game	Medium	To Do	To Do
56	Merge Intervals	Medium	To Do	To Do
57	Insert Interval	Medium	To Do	To Do
58	Length of Last Word	Easy	To Do	To Do
59	Spiral Matrix II	Medium	To Do	To Do
60	Permutation Sequence	Hard	JavaScript	To Do
61	Rotate List	Medium	JavaScript	To Do
62	Unique Paths	Medium	JavaScript	python
63	Unique Paths II	Medium	To Do	To Do
64	Minimum Path Sum	Medium	To Do	To Do
65	Valid Number	Hard	To Do	To Do
66	Plus One	Easy	To Do	To Do
67	Add Binary	Easy	To Do	To Do
68	Text Justification	Hard	To Do	To Do
69	Sqrt(x)	Easy	To Do	To Do
70	Climbing Stairs	Easy	To Do	To Do
71	Simplify Path	Medium	To Do	To Do
72	Edit Distance	Hard	To Do	To Do
73	Set Matrix Zeroes	Medium	To Do	To Do
74	Search a 2D Matrix	Medium	To Do	To Do
75	Sort Colors	Medium	JavaScript	To Do
76	Minimum Window Substring	Hard	To Do	To Do
77	Combinations	Medium	To Do	To Do
78	Subsets	Medium	To Do	To Do
79	Word Search	Medium	To Do	To Do
80	Remove Duplicates from Sorted Array II	Medium	To Do	To Do
81	Search in Rotated Sorted Array II	Medium	To Do	To Do
82	Remove Duplicates from Sorted List II	Medium	To Do	To Do
83	Remove Duplicates from Sorted List	Easy	To Do	To Do
84	Largest Rectangle in Histogram	Hard	To Do	To Do
85	Maximal Rectangle	Hard	To Do	To Do
86	Partition List	Medium	To Do	To Do
87	Scramble String	Hard	To Do	To Do
88	Merge Sorted Array	Easy	To Do	To Do
89	Gray Code	Medium	To Do	To Do
90	Subsets II	Medium	To Do	To Do
91	Decode Ways	Medium	To Do	To Do
92	Reverse Linked List II	Medium	To Do	To Do
93	Restore IP Addresses	Medium	To Do	To Do
94	Binary Tree Inorder Traversal	Easy	To Do	To Do
95	Unique Binary Search Trees II	Medium	To Do	To Do
96	Unique Binary Search Trees	Medium	To Do	python
97	Interleaving String	Medium	To Do	To Do
98	Validate Binary Search Tree	Medium	To Do	To Do
99	Recover Binary Search Tree	Medium	To Do	To Do
100	Same Tree	Easy	To Do	To Do
101	Symmetric Tree	Easy	To Do	To Do
102	Binary Tree Level Order Traversal	Medium	To Do	To Do
103	Binary Tree Zigzag Level Order Traversal	Medium	To Do	To Do
104	Maximum Depth of Binary Tree	Easy	To Do	To Do
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	To Do	To Do
106	Construct Binary Tree from Inorder and Postorder Traversal	Medium	To Do	python
107	Binary Tree Level Order Traversal II	Medium	To Do	To Do
108	Convert Sorted Array to Binary Search Tree	Easy	To Do	To Do
109	Convert Sorted List to Binary Search Tree	Medium	To Do	To Do
110	Balanced Binary Tree	Easy	To Do	To Do
111	Minimum Depth of Binary Tree	Easy	To Do	To Do
112	Path Sum	Easy	To Do	To Do
113	Path Sum II	Medium	To Do	To Do
114	Flatten Binary Tree to Linked List	Medium	To Do	To Do
115	Distinct Subsequences	Hard	To Do	To Do
116	Populating Next Right Pointers in Each Node	Medium	To Do	To Do
117	Populating Next Right Pointers in Each Node II	Medium	To Do	To Do
118	Pascal's Triangle	Easy	To Do	To Do
119	Pascal's Triangle II	Easy	To Do	To Do
120	Triangle	Medium	To Do	To Do
121	Best Time to Buy and Sell Stock	Easy	To Do	To Do
122	Best Time to Buy and Sell Stock II	Medium	To Do	To Do
123	Best Time to Buy and Sell Stock III	Hard	To Do	To Do
124	Binary Tree Maximum Path Sum	Hard	To Do	To Do
125	Valid Palindrome	Easy	To Do	To Do
126	Word Ladder II	Hard	To Do	To Do
127	Word Ladder	Hard	To Do	To Do
128	Longest Consecutive Sequence	Medium	To Do	To Do
129	Sum Root to Leaf Numbers	Medium	To Do	python
130	Surrounded Regions	Medium	JavaScript	To Do
131	Palindrome Partitioning	Medium	To Do	To Do
132	Palindrome Partitioning II	Hard	To Do	To Do
133	Clone Graph	Medium	To Do	To Do
134	Gas Station	Medium	To Do	To Do
135	Candy	Hard	To Do	To Do
136	Single Number	Easy	To Do	To Do
137	Single Number II	Medium	To Do	python
138	Copy List with Random Pointer	Medium	To Do	To Do
139	Word Break	Medium	To Do	To Do
140	Word Break II	Hard	To Do	To Do
141	Linked List Cycle	Easy	To Do	To Do
142	Linked List Cycle II	Medium	To Do	To Do
143	Reorder List	Medium	To Do	To Do
144	Binary Tree Preorder Traversal	Easy	To Do	To Do
145	Binary Tree Postorder Traversal	Easy	To Do	python
146	LRU Cache	Medium	To Do	To Do
147	Insertion Sort List	Medium	To Do	To Do
148	Sort List	Medium	To Do	To Do
149	Max Points on a Line	Hard	To Do	To Do
150	Evaluate Reverse Polish Notation	Medium	To Do	To Do
151	Reverse Words in a String	Medium	To Do	python
152	Maximum Product Subarray	Medium	To Do	To Do
153	Find Minimum in Rotated Sorted Array	Medium	To Do	To Do
154	Find Minimum in Rotated Sorted Array II	Hard	To Do	To Do
155	Min Stack	Medium	To Do	To Do
156	Binary Tree Upside Down 🔒	Medium	To Do	To Do
157	Read N Characters Given Read4 🔒	Easy	To Do	To Do
158	Read N Characters Given read4 II - Call Multiple Times 🔒	Hard	To Do	To Do
159	Longest Substring with At Most Two Distinct Characters 🔒	Medium	To Do	To Do
160	Intersection of Two Linked Lists	Easy	To Do	To Do
161	One Edit Distance 🔒	Medium	To Do	To Do
162	Find Peak Element	Medium	To Do	To Do
163	Missing Ranges 🔒	Easy	To Do	To Do
164	Maximum Gap	Hard	To Do	To Do
165	Compare Version Numbers	Medium	To Do	To Do
166	Fraction to Recurring Decimal	Medium	To Do	To Do
167	Two Sum II - Input Array Is Sorted	Medium	To Do	To Do
168	Excel Sheet Column Title	Easy	To Do	To Do
169	Majority Element	Easy	To Do	To Do
170	Two Sum III - Data structure design 🔒	Easy	To Do	To Do
171	Excel Sheet Column Number	Easy	To Do	To Do
172	Factorial Trailing Zeroes	Medium	To Do	To Do
173	Binary Search Tree Iterator	Medium	To Do	To Do
174	Dungeon Game	Hard	JavaScript	To Do
175	Combine Two Tables	Easy	To Do	To Do
176	Second Highest Salary	Medium	To Do	To Do
177	Nth Highest Salary	Medium	To Do	To Do
178	Rank Scores	Medium	To Do	To Do
179	Largest Number	Medium	To Do	To Do
180	Consecutive Numbers	Medium	To Do	To Do
181	Employees Earning More Than Their Managers	Easy	To Do	To Do
182	Duplicate Emails	Easy	To Do	To Do
183	Customers Who Never Order	Easy	To Do	To Do
184	Department Highest Salary	Medium	To Do	To Do
185	Department Top Three Salaries	Hard	To Do	To Do
186	Reverse Words in a String II 🔒	Medium	To Do	To Do
187	Repeated DNA Sequences	Medium	To Do	To Do
188	Best Time to Buy and Sell Stock IV	Hard	To Do	To Do
189	Rotate Array	Medium	To Do	To Do
190	Reverse Bits	Easy	To Do	To Do
191	Number of 1 Bits	Easy	To Do	To Do
192	Word Frequency	Medium	To Do	To Do
193	Valid Phone Numbers	Easy	To Do	To Do
194	Transpose File	Medium	To Do	To Do
195	Tenth Line	Easy	To Do	To Do
196	Delete Duplicate Emails	Easy	To Do	To Do
197	Rising Temperature	Easy	To Do	To Do
198	House Robber	Medium	To Do	To Do
199	Binary Tree Right Side View	Medium	To Do	To Do
200	Number of Islands	Medium	To Do	To Do
201	Bitwise AND of Numbers Range	Medium	To Do	To Do
202	Happy Number	Easy	To Do	To Do
203	Remove Linked List Elements	Easy	To Do	To Do
204	Count Primes	Medium	To Do	To Do
205	Isomorphic Strings	Easy	To Do	To Do
206	Reverse Linked List	Easy	To Do	To Do
207	Course Schedule	Medium	To Do	To Do
208	Implement Trie (Prefix Tree)	Medium	JavaScript	To Do
209	Minimum Size Subarray Sum	Medium	To Do	To Do
210	Course Schedule II	Medium	To Do	To Do
211	Design Add and Search Words Data Structure	Medium	To Do	To Do
212	Word Search II	Hard	To Do	To Do
213	House Robber II	Medium	To Do	To Do
214	Shortest Palindrome	Hard	To Do	To Do
215	Kth Largest Element in an Array	Medium	To Do	To Do
216	Combination Sum III	Medium	To Do	To Do
217	Contains Duplicate	Easy	To Do	To Do
218	The Skyline Problem	Hard	To Do	To Do
219	Contains Duplicate II	Easy	To Do	To Do
220	Contains Duplicate III	Hard	To Do	To Do
221	Maximal Square	Medium	To Do	To Do
222	Count Complete Tree Nodes	Medium	To Do	To Do
223	Rectangle Area	Medium	To Do	To Do
224	Basic Calculator	Hard	To Do	To Do
225	Implement Stack using Queues	Easy	To Do	To Do
226	Invert Binary Tree	Easy	JavaScript	To Do
227	Basic Calculator II	Medium	To Do	To Do
228	Summary Ranges	Easy	To Do	To Do
229	Majority Element II	Medium	To Do	To Do
230	Kth Smallest Element in a BST	Medium	To Do	To Do
231	Power of Two	Easy	JavaScript	To Do
232	Implement Queue using Stacks	Easy	To Do	python
233	Number of Digit One	Hard	To Do	To Do
234	Palindrome Linked List	Easy	To Do	To Do
235	Lowest Common Ancestor of a Binary Search Tree	Medium	To Do	To Do
236	Lowest Common Ancestor of a Binary Tree	Medium	To Do	python
237	Delete Node in a Linked List	Medium	JavaScript	To Do
238	Product of Array Except Self	Medium	To Do	To Do
239	Sliding Window Maximum	Hard	To Do	To Do
240	Search a 2D Matrix II	Medium	To Do	To Do
241	Different Ways to Add Parentheses	Medium	To Do	To Do
242	Valid Anagram	Easy	To Do	To Do
243	Shortest Word Distance 🔒	Easy	To Do	To Do
244	Shortest Word Distance II 🔒	Medium	To Do	To Do
245	Shortest Word Distance III 🔒	Medium	To Do	To Do
246	Strobogrammatic Number 🔒	Easy	To Do	To Do
247	Strobogrammatic Number II 🔒	Medium	To Do	To Do
248	Strobogrammatic Number III 🔒	Hard	To Do	To Do
249	Group Shifted Strings 🔒	Medium	To Do	To Do
250	Count Univalue Subtrees 🔒	Medium	To Do	To Do
251	Flatten 2D Vector 🔒	Medium	To Do	To Do
252	Meeting Rooms 🔒	Easy	To Do	To Do
253	Meeting Rooms II 🔒	Medium	To Do	To Do
254	Factor Combinations 🔒	Medium	To Do	To Do
255	Verify Preorder Sequence in Binary Search Tree 🔒	Medium	To Do	To Do
256	Paint House 🔒	Medium	To Do	To Do
257	Binary Tree Paths	Easy	To Do	To Do
258	Add Digits	Easy	To Do	To Do
259	3Sum Smaller 🔒	Medium	To Do	To Do
260	Single Number III	Medium	To Do	To Do
261	Graph Valid Tree 🔒	Medium	To Do	To Do
262	Trips and Users	Hard	To Do	To Do
263	Ugly Number	Easy	To Do	python
264	Ugly Number II	Medium	To Do	To Do
265	Paint House II 🔒	Hard	To Do	To Do
266	Palindrome Permutation 🔒	Easy	To Do	To Do
267	Palindrome Permutation II 🔒	Medium	To Do	To Do
268	Missing Number	Easy	To Do	To Do
269	Alien Dictionary 🔒	Hard	To Do	To Do
270	Closest Binary Search Tree Value 🔒	Easy	To Do	To Do
271	Encode and Decode Strings 🔒	Medium	To Do	To Do
272	Closest Binary Search Tree Value II 🔒	Hard	To Do	To Do
273	Integer to English Words	Hard	To Do	To Do
274	H-Index	Medium	To Do	To Do
275	H-Index II	Medium	To Do	To Do
276	Paint Fence 🔒	Medium	To Do	To Do
277	Find the Celebrity 🔒	Medium	To Do	To Do
278	First Bad Version	Easy	To Do	To Do
279	Perfect Squares	Medium	To Do	To Do
280	Wiggle Sort 🔒	Medium	To Do	To Do
281	Zigzag Iterator 🔒	Medium	To Do	To Do
282	Expression Add Operators	Hard	To Do	To Do
283	Move Zeroes	Easy	To Do	python
284	Peeking Iterator	Medium	To Do	To Do
285	Inorder Successor in BST 🔒	Medium	To Do	To Do
286	Walls and Gates 🔒	Medium	To Do	To Do
287	Find the Duplicate Number	Medium	To Do	To Do
288	Unique Word Abbreviation 🔒	Medium	To Do	To Do
289	Game of Life	Medium	To Do	To Do
290	Word Pattern	Easy	To Do	To Do
291	Word Pattern II 🔒	Medium	To Do	To Do
292	Nim Game	Easy	To Do	To Do
293	Flip Game 🔒	Easy	To Do	To Do
294	Flip Game II 🔒	Medium	To Do	To Do
295	Find Median from Data Stream	Hard	To Do	To Do
296	Best Meeting Point 🔒	Hard	To Do	To Do
297	Serialize and Deserialize Binary Tree	Hard	To Do	To Do
298	Binary Tree Longest Consecutive Sequence 🔒	Medium	To Do	To Do
299	Bulls and Cows	Medium	To Do	To Do
300	Longest Increasing Subsequence	Medium	JavaScript	To Do
301	Remove Invalid Parentheses	Hard	To Do	To Do
302	Smallest Rectangle Enclosing Black Pixels 🔒	Hard	To Do	To Do
303	Range Sum Query - Immutable	Easy	To Do	To Do
304	Range Sum Query 2D - Immutable	Medium	To Do	To Do
305	Number of Islands II 🔒	Hard	To Do	To Do
306	Additive Number	Medium	To Do	To Do
307	Range Sum Query - Mutable	Medium	To Do	To Do
308	Range Sum Query 2D - Mutable 🔒	Hard	To Do	To Do
309	Best Time to Buy and Sell Stock with Cooldown	Medium	To Do	To Do
310	Minimum Height Trees	Medium	To Do	To Do
311	Sparse Matrix Multiplication 🔒	Medium	To Do	To Do
312	Burst Balloons	Hard	To Do	To Do
313	Super Ugly Number	Medium	To Do	To Do
314	Binary Tree Vertical Order Traversal 🔒	Medium	To Do	To Do
315	Count of Smaller Numbers After Self	Hard	To Do	To Do
316	Remove Duplicate Letters	Medium	To Do	To Do
317	Shortest Distance from All Buildings 🔒	Hard	To Do	To Do
318	Maximum Product of Word Lengths	Medium	To Do	To Do
319	Bulb Switcher	Medium	To Do	To Do
320	Generalized Abbreviation 🔒	Medium	To Do	To Do
321	Create Maximum Number	Hard	To Do	To Do
322	Coin Change	Medium	To Do	To Do
323	Number of Connected Components in an Undirected Graph 🔒	Medium	To Do	To Do
324	Wiggle Sort II	Medium	To Do	To Do
325	Maximum Size Subarray Sum Equals k 🔒	Medium	To Do	To Do
326	Power of Three	Easy	To Do	To Do
327	Count of Range Sum	Hard	To Do	To Do
328	Odd Even Linked List	Medium	To Do	To Do
329	Longest Increasing Path in a Matrix	Hard	To Do	To Do
330	Patching Array	Hard	To Do	To Do
331	Verify Preorder Serialization of a Binary Tree	Medium	To Do	To Do
332	Reconstruct Itinerary	Hard	To Do	To Do
333	Largest BST Subtree 🔒	Medium	To Do	To Do
334	Increasing Triplet Subsequence	Medium	To Do	To Do
335	Self Crossing	Hard	To Do	To Do
336	Palindrome Pairs	Hard	To Do	To Do
337	House Robber III	Medium	To Do	To Do
338	Counting Bits	Easy	To Do	To Do
339	Nested List Weight Sum 🔒	Medium	To Do	To Do
340	Longest Substring with At Most K Distinct Characters 🔒	Medium	To Do	To Do
341	Flatten Nested List Iterator	Medium	To Do	To Do
342	Power of Four	Easy	To Do	To Do
343	Integer Break	Medium	To Do	To Do
344	Reverse String	Easy	To Do	To Do
345	Reverse Vowels of a String	Easy	To Do	python
346	Moving Average from Data Stream 🔒	Easy	To Do	To Do
347	Top K Frequent Elements	Medium	To Do	To Do
348	Design Tic-Tac-Toe 🔒	Medium	To Do	To Do
349	Intersection of Two Arrays	Easy	To Do	To Do
350	Intersection of Two Arrays II	Easy	To Do	To Do
351	Android Unlock Patterns 🔒	Medium	To Do	To Do
352	Data Stream as Disjoint Intervals	Hard	To Do	To Do
353	Design Snake Game 🔒	Medium	To Do	To Do
354	Russian Doll Envelopes	Hard	To Do	To Do
355	Design Twitter	Medium	To Do	To Do
356	Line Reflection 🔒	Medium	To Do	To Do
357	Count Numbers with Unique Digits	Medium	To Do	To Do
358	Rearrange String k Distance Apart 🔒	Hard	To Do	To Do
359	Logger Rate Limiter 🔒	Easy	To Do	To Do
360	Sort Transformed Array 🔒	Medium	To Do	To Do
361	Bomb Enemy 🔒	Medium	To Do	To Do
362	Design Hit Counter 🔒	Medium	To Do	To Do
363	Max Sum of Rectangle No Larger Than K	Hard	To Do	To Do
364	Nested List Weight Sum II 🔒	Medium	To Do	To Do
365	Water and Jug Problem	Medium	To Do	To Do
366	Find Leaves of Binary Tree 🔒	Medium	To Do	To Do
367	Valid Perfect Square	Easy	To Do	To Do
368	Largest Divisible Subset	Medium	To Do	To Do
369	Plus One Linked List 🔒	Medium	To Do	To Do
370	Range Addition 🔒	Medium	To Do	To Do
371	Sum of Two Integers	Medium	To Do	To Do
372	Super Pow	Medium	To Do	To Do
373	Find K Pairs with Smallest Sums	Medium	To Do	To Do
374	Guess Number Higher or Lower	Easy	To Do	To Do
375	Guess Number Higher or Lower II	Medium	To Do	To Do
376	Wiggle Subsequence	Medium	To Do	To Do
377	Combination Sum IV	Medium	To Do	To Do
378	Kth Smallest Element in a Sorted Matrix	Medium	To Do	To Do
379	Design Phone Directory 🔒	Medium	To Do	To Do
380	Insert Delete GetRandom O(1)	Medium	JavaScript	To Do
381	Insert Delete GetRandom O(1) - Duplicates allowed	Hard	To Do	To Do
382	Linked List Random Node	Medium	To Do	To Do
383	Ransom Note	Easy	To Do	To Do
384	Shuffle an Array	Medium	To Do	To Do
385	Mini Parser	Medium	To Do	To Do
386	Lexicographical Numbers	Medium	To Do	To Do
387	First Unique Character in a String	Easy	To Do	To Do
388	Longest Absolute File Path	Medium	To Do	To Do
389	Find the Difference	Easy	To Do	To Do
390	Elimination Game	Medium	To Do	To Do
391	Perfect Rectangle	Hard	To Do	To Do
392	Is Subsequence	Easy	JavaScript	To Do
393	UTF-8 Validation	Medium	To Do	To Do
394	Decode String	Medium	To Do	To Do
395	Longest Substring with At Least K Repeating Characters	Medium	To Do	To Do
396	Rotate Function	Medium	To Do	To Do
397	Integer Replacement	Medium	To Do	To Do
398	Random Pick Index	Medium	To Do	To Do
399	Evaluate Division	Medium	To Do	To Do
400	Nth Digit	Medium	To Do	To Do
401	Binary Watch	Easy	To Do	To Do
402	Remove K Digits	Medium	JavaScript	To Do
403	Frog Jump	Hard	To Do	To Do
404	Sum of Left Leaves	Easy	To Do	To Do
405	Convert a Number to Hexadecimal	Easy	To Do	To Do
406	Queue Reconstruction by Height	Medium	JavaScript	To Do
407	Trapping Rain Water II	Hard	To Do	To Do
408	Valid Word Abbreviation 🔒	Easy	To Do	To Do
409	Longest Palindrome	Easy	To Do	To Do
410	Split Array Largest Sum	Hard	To Do	To Do
411	Minimum Unique Word Abbreviation 🔒	Hard	To Do	To Do
412	Fizz Buzz	Easy	To Do	To Do
413	Arithmetic Slices	Medium	To Do	To Do
414	Third Maximum Number	Easy	To Do	To Do
415	Add Strings	Easy	To Do	To Do
416	Partition Equal Subset Sum	Medium	To Do	To Do
417	Pacific Atlantic Water Flow	Medium	To Do	To Do
418	Sentence Screen Fitting 🔒	Medium	To Do	To Do
419	Battleships in a Board	Medium	To Do	To Do
420	Strong Password Checker	Hard	To Do	To Do
421	Maximum XOR of Two Numbers in an Array	Medium	To Do	To Do
422	Valid Word Square 🔒	Easy	To Do	To Do
423	Reconstruct Original Digits from English	Medium	To Do	To Do
424	Longest Repeating Character Replacement	Medium	To Do	To Do
425	Word Squares 🔒	Hard	To Do	To Do
432	All O`one Data Structure	Hard	To Do	To Do
433	Minimum Genetic Mutation	Medium	To Do	To Do
434	Number of Segments in a String	Easy	To Do	To Do
435	Non-overlapping Intervals	Medium	To Do	To Do
436	Find Right Interval	Medium	To Do	To Do
437	Path Sum III	Medium	To Do	To Do
438	Find All Anagrams in a String	Medium	To Do	To Do
439	Ternary Expression Parser 🔒	Medium	To Do	To Do
440	K-th Smallest in Lexicographical Order	Hard	To Do	To Do
441	Arranging Coins	Easy	To Do	To Do
442	Find All Duplicates in an Array	Medium	To Do	To Do
443	String Compression	Medium	To Do	To Do
444	Sequence Reconstruction 🔒	Medium	To Do	To Do
445	Add Two Numbers II	Medium	To Do	To Do
446	Arithmetic Slices II - Subsequence	Hard	To Do	To Do
447	Number of Boomerangs	Medium	To Do	To Do
448	Find All Numbers Disappeared in an Array	Easy	To Do	To Do
449	Serialize and Deserialize BST	Medium	To Do	To Do
450	Delete Node in a BST	Medium	To Do	To Do
451	Sort Characters By Frequency	Medium	To Do	To Do
452	Minimum Number of Arrows to Burst Balloons	Medium	To Do	To Do
453	Minimum Moves to Equal Array Elements	Medium	To Do	To Do
454	4Sum II	Medium	To Do	To Do
455	Assign Cookies	Easy	To Do	To Do
456	132 Pattern	Medium	To Do	To Do
457	Circular Array Loop	Medium	To Do	To Do
458	Poor Pigs	Hard	To Do	To Do
459	Repeated Substring Pattern	Easy	To Do	To Do
460	LFU Cache	Hard	To Do	To Do
461	Hamming Distance	Easy	To Do	To Do
462	Minimum Moves to Equal Array Elements II	Medium	To Do	To Do
463	Island Perimeter	Easy	To Do	To Do
464	Can I Win	Medium	To Do	To Do
465	Optimal Account Balancing 🔒	Hard	To Do	To Do
466	Count The Repetitions	Hard	To Do	To Do
467	Unique Substrings in Wraparound String	Medium	To Do	To Do
468	Validate IP Address	Medium	JavaScript	To Do
469	Convex Polygon 🔒	Medium	To Do	To Do
471	Encode String with Shortest Length 🔒	Hard	To Do	To Do
472	Concatenated Words	Hard	To Do	To Do
473	Matchsticks to Square	Medium	To Do	To Do
474	Ones and Zeroes	Medium	To Do	To Do
475	Heaters	Medium	To Do	To Do
476	Number Complement	Easy	To Do	To Do
477	Total Hamming Distance	Medium	To Do	To Do
479	Largest Palindrome Product	Hard	To Do	To Do
480	Sliding Window Median	Hard	To Do	To Do
481	Magical String	Medium	To Do	To Do
482	License Key Formatting	Easy	To Do	To Do
483	Smallest Good Base	Hard	To Do	To Do
484	Find Permutation 🔒	Medium	To Do	To Do
485	Max Consecutive Ones	Easy	To Do	To Do
486	Predict the Winner	Medium	To Do	To Do
487	Max Consecutive Ones II 🔒	Medium	To Do	To Do
488	Zuma Game	Hard	To Do	To Do
1643	Kth Smallest Instructions	Hard	To Do	To Do
490	The Maze 🔒	Medium	To Do	To Do
491	Non-decreasing Subsequences	Medium	To Do	To Do
492	Construct the Rectangle	Easy	To Do	To Do
493	Reverse Pairs	Hard	To Do	To Do
494	Target Sum	Medium	To Do	To Do
495	Teemo Attacking	Easy	To Do	To Do
496	Next Greater Element I	Easy	To Do	To Do
498	Diagonal Traverse	Medium	To Do	To Do
499	The Maze III 🔒	Hard	To Do	To Do
500	Keyboard Row	Easy	To Do	To Do
501	Find Mode in Binary Search Tree	Easy	To Do	To Do
502	IPO	Hard	To Do	To Do
503	Next Greater Element II	Medium	To Do	To Do
504	Base 7	Easy	To Do	To Do
505	The Maze II 🔒	Medium	To Do	To Do
506	Relative Ranks	Easy	To Do	To Do
507	Perfect Number	Easy	To Do	To Do
508	Most Frequent Subtree Sum	Medium	To Do	To Do
510	Inorder Successor in BST II 🔒	Medium	To Do	To Do
2031	Count Subarrays With More Ones Than Zeros 🔒	Medium	To Do	To Do
1059	All Paths from Source Lead to Destination 🔒	Medium	To Do	To Do
2036	Maximum Alternating Subarray Sum 🔒	Medium	To Do	To Do
513	Find Bottom Left Tree Value	Medium	To Do	To Do
514	Freedom Trail	Hard	To Do	To Do
515	Find Largest Value in Each Tree Row	Medium	To Do	To Do
516	Longest Palindromic Subsequence	Medium	To Do	To Do
517	Super Washing Machines	Hard	To Do	To Do
518	Coin Change II	Medium	JavaScript	To Do
1983	Widest Pair of Indices With Equal Range Sum 🔒	Medium	To Do	To Do
520	Detect Capital	Easy	To Do	To Do
521	Longest Uncommon Subsequence I	Easy	To Do	To Do
522	Longest Uncommon Subsequence II	Medium	To Do	To Do
523	Continuous Subarray Sum	Medium	To Do	To Do
524	Longest Word in Dictionary through Deleting	Medium	To Do	To Do
525	Contiguous Array	Medium	JavaScript	To Do
526	Beautiful Arrangement	Medium	To Do	To Do
527	Word Abbreviation 🔒	Hard	To Do	To Do
1721	Swapping Nodes in a Linked List	Medium	To Do	To Do
529	Minesweeper	Medium	To Do	To Do
530	Minimum Absolute Difference in BST	Easy	To Do	To Do
531	Lonely Pixel I 🔒	Medium	To Do	To Do
532	K-diff Pairs in an Array	Medium	To Do	To Do
533	Lonely Pixel II 🔒	Medium	To Do	To Do
535	Encode and Decode TinyURL	Medium	To Do	To Do
536	Construct Binary Tree from String 🔒	Medium	To Do	To Do
537	Complex Number Multiplication	Medium	To Do	To Do
538	Convert BST to Greater Tree	Medium	To Do	To Do
539	Minimum Time Difference	Medium	To Do	To Do
540	Single Element in a Sorted Array	Medium	To Do	To Do
541	Reverse String II	Easy	To Do	To Do
542	01 Matrix	Medium	To Do	To Do
543	Diameter of Binary Tree	Easy	To Do	To Do
544	Output Contest Matches 🔒	Medium	To Do	To Do
545	Boundary of Binary Tree 🔒	Medium	To Do	To Do
546	Remove Boxes	Hard	To Do	To Do
547	Number of Provinces	Medium	To Do	To Do
548	Split Array with Equal Sum 🔒	Hard	To Do	To Do
549	Binary Tree Longest Consecutive Sequence II 🔒	Medium	To Do	To Do
1730	Shortest Path to Get Food 🔒	Medium	To Do	To Do
551	Student Attendance Record I	Easy	To Do	To Do
552	Student Attendance Record II	Hard	To Do	To Do
553	Optimal Division	Medium	To Do	To Do
554	Brick Wall	Medium	To Do	To Do
555	Split Concatenated Strings 🔒	Medium	To Do	To Do
556	Next Greater Element III	Medium	To Do	To Do
557	Reverse Words in a String III	Easy	To Do	To Do
560	Subarray Sum Equals K	Medium	To Do	To Do
561	Array Partition	Easy	To Do	To Do
562	Longest Line of Consecutive One in Matrix 🔒	Medium	To Do	To Do
563	Binary Tree Tilt	Easy	To Do	To Do
564	Find the Closest Palindrome	Hard	To Do	To Do
565	Array Nesting	Medium	To Do	To Do
566	Reshape the Matrix	Easy	To Do	To Do
567	Permutation in String	Medium	To Do	To Do
568	Maximum Vacation Days 🔒	Hard	To Do	To Do
569	Median Employee Salary 🔒	Hard	To Do	To Do
570	Managers with at Least 5 Direct Reports	Medium	To Do	To Do
571	Find Median Given Frequency of Numbers 🔒	Hard	To Do	To Do
572	Subtree of Another Tree	Easy	To Do	To Do
573	Squirrel Simulation 🔒	Medium	To Do	To Do
574	Winning Candidate 🔒	Medium	To Do	To Do
575	Distribute Candies	Easy	To Do	To Do
576	Out of Boundary Paths	Medium	To Do	To Do
577	Employee Bonus	Easy	To Do	To Do
578	Get Highest Answer Rate Question 🔒	Medium	To Do	To Do
579	Find Cumulative Salary of an Employee 🔒	Hard	To Do	To Do
580	Count Student Number in Departments 🔒	Medium	To Do	To Do
581	Shortest Unsorted Continuous Subarray	Medium	To Do	To Do
582	Kill Process 🔒	Medium	To Do	To Do
583	Delete Operation for Two Strings	Medium	To Do	To Do
584	Find Customer Referee	Easy	To Do	To Do
585	Investments in 2016	Medium	To Do	To Do
586	Customer Placing the Largest Number of Orders	Easy	To Do	To Do
587	Erect the Fence	Hard	To Do	To Do
588	Design In-Memory File System 🔒	Hard	To Do	To Do
591	Tag Validator	Hard	To Do	To Do
592	Fraction Addition and Subtraction	Medium	To Do	To Do
593	Valid Square	Medium	To Do	To Do
594	Longest Harmonious Subsequence	Easy	To Do	To Do
595	Big Countries	Easy	To Do	To Do
596	Classes More Than 5 Students	Easy	To Do	To Do
597	Friend Requests I: Overall Acceptance Rate 🔒	Easy	To Do	To Do
598	Range Addition II	Easy	To Do	To Do
599	Minimum Index Sum of Two Lists	Easy	To Do	To Do
600	Non-negative Integers without Consecutive Ones	Hard	To Do	To Do
601	Human Traffic of Stadium	Hard	To Do	To Do
602	Friend Requests II: Who Has the Most Friends	Medium	To Do	To Do
603	Consecutive Available Seats 🔒	Easy	To Do	To Do
604	Design Compressed String Iterator 🔒	Easy	To Do	To Do
605	Can Place Flowers	Easy	To Do	To Do
606	Construct String from Binary Tree	Easy	To Do	To Do
607	Sales Person	Easy	To Do	To Do
608	Tree Node	Medium	To Do	To Do
609	Find Duplicate File in System	Medium	To Do	To Do
610	Triangle Judgement	Easy	To Do	To Do
611	Valid Triangle Number	Medium	To Do	To Do
612	Shortest Distance in a Plane 🔒	Medium	To Do	To Do
613	Shortest Distance in a Line 🔒	Easy	To Do	To Do
614	Second Degree Follower 🔒	Medium	To Do	To Do
615	Average Salary: Departments VS Company 🔒	Hard	To Do	To Do
616	Add Bold Tag in String 🔒	Medium	To Do	To Do
617	Merge Two Binary Trees	Easy	To Do	To Do
618	Students Report By Geography 🔒	Hard	To Do	To Do
619	Biggest Single Number	Easy	To Do	To Do
620	Not Boring Movies	Easy	To Do	To Do
621	Task Scheduler	Medium	To Do	To Do
623	Add One Row to Tree	Medium	To Do	To Do
624	Maximum Distance in Arrays 🔒	Medium	To Do	To Do
625	Minimum Factorization 🔒	Medium	To Do	To Do
626	Exchange Seats	Medium	To Do	To Do
627	Swap Salary	Easy	To Do	To Do
628	Maximum Product of Three Numbers	Easy	To Do	To Do
629	K Inverse Pairs Array	Hard	To Do	To Do
630	Course Schedule III	Hard	To Do	To Do
631	Design Excel Sum Formula 🔒	Hard	To Do	To Do
632	Smallest Range Covering Elements from K Lists	Hard	To Do	To Do
633	Sum of Square Numbers	Medium	To Do	To Do
634	Find the Derangement of An Array 🔒	Medium	To Do	To Do
635	Design Log Storage System 🔒	Medium	To Do	To Do
636	Exclusive Time of Functions	Medium	To Do	To Do
637	Average of Levels in Binary Tree	Easy	To Do	To Do
638	Shopping Offers	Medium	To Do	To Do
639	Decode Ways II	Hard	To Do	To Do
640	Solve the Equation	Medium	To Do	To Do
642	Design Search Autocomplete System 🔒	Hard	To Do	To Do
643	Maximum Average Subarray I	Easy	To Do	To Do
644	Maximum Average Subarray II 🔒	Hard	To Do	To Do
645	Set Mismatch	Easy	To Do	To Do
646	Maximum Length of Pair Chain	Medium	To Do	To Do
647	Palindromic Substrings	Medium	To Do	To Do
648	Replace Words	Medium	To Do	To Do
649	Dota2 Senate	Medium	To Do	To Do
650	2 Keys Keyboard	Medium	To Do	To Do
651	4 Keys Keyboard 🔒	Medium	To Do	To Do
652	Find Duplicate Subtrees	Medium	To Do	To Do
653	Two Sum IV - Input is a BST	Easy	To Do	To Do
654	Maximum Binary Tree	Medium	To Do	To Do
655	Print Binary Tree	Medium	To Do	To Do
656	Coin Path 🔒	Hard	To Do	To Do
657	Robot Return to Origin	Easy	To Do	To Do
658	Find K Closest Elements	Medium	To Do	To Do
659	Split Array into Consecutive Subsequences	Medium	To Do	To Do
660	Remove 9 🔒	Hard	To Do	To Do
661	Image Smoother	Easy	To Do	To Do
662	Maximum Width of Binary Tree	Medium	To Do	To Do
663	Equal Tree Partition 🔒	Medium	To Do	To Do
664	Strange Printer	Hard	To Do	To Do
665	Non-decreasing Array	Medium	To Do	To Do
666	Path Sum IV 🔒	Medium	To Do	To Do
667	Beautiful Arrangement II	Medium	To Do	To Do
668	Kth Smallest Number in Multiplication Table	Hard	To Do	To Do
669	Trim a Binary Search Tree	Medium	To Do	To Do
670	Maximum Swap	Medium	To Do	To Do
671	Second Minimum Node In a Binary Tree	Easy	To Do	To Do
672	Bulb Switcher II	Medium	To Do	To Do
673	Number of Longest Increasing Subsequence	Medium	To Do	To Do
674	Longest Continuous Increasing Subsequence	Easy	To Do	To Do
675	Cut Off Trees for Golf Event	Hard	To Do	To Do
676	Implement Magic Dictionary	Medium	To Do	To Do
677	Map Sum Pairs	Medium	To Do	To Do
678	Valid Parenthesis String	Medium	To Do	To Do
679	24 Game	Hard	To Do	To Do
680	Valid Palindrome II	Easy	To Do	To Do
681	Next Closest Time 🔒	Medium	To Do	To Do
682	Baseball Game	Easy	To Do	To Do
683	K Empty Slots 🔒	Hard	To Do	To Do
684	Redundant Connection	Medium	To Do	To Do
685	Redundant Connection II	Hard	To Do	To Do
686	Repeated String Match	Medium	To Do	To Do
687	Longest Univalue Path	Medium	To Do	To Do
688	Knight Probability in Chessboard	Medium	To Do	To Do
689	Maximum Sum of 3 Non-Overlapping Subarrays	Hard	To Do	To Do
690	Employee Importance	Medium	To Do	To Do
691	Stickers to Spell Word	Hard	To Do	To Do
692	Top K Frequent Words	Medium	To Do	To Do
693	Binary Number with Alternating Bits	Easy	To Do	To Do
694	Number of Distinct Islands 🔒	Medium	To Do	To Do
695	Max Area of Island	Medium	To Do	To Do
696	Count Binary Substrings	Easy	To Do	To Do
697	Degree of an Array	Easy	To Do	To Do
698	Partition to K Equal Sum Subsets	Medium	To Do	To Do
699	Falling Squares	Hard	To Do	To Do
711	Number of Distinct Islands II 🔒	Hard	To Do	To Do
712	Minimum ASCII Delete Sum for Two Strings	Medium	To Do	To Do
713	Subarray Product Less Than K	Medium	To Do	To Do
714	Best Time to Buy and Sell Stock with Transaction Fee	Medium	To Do	To Do
715	Range Module	Hard	To Do	To Do
716	Max Stack 🔒	Hard	To Do	To Do
717	1-bit and 2-bit Characters	Easy	To Do	To Do
718	Maximum Length of Repeated Subarray	Medium	To Do	To Do
719	Find K-th Smallest Pair Distance	Hard	To Do	To Do
720	Longest Word in Dictionary	Medium	To Do	To Do
721	Accounts Merge	Medium	To Do	To Do
722	Remove Comments	Medium	To Do	To Do
723	Candy Crush 🔒	Medium	To Do	To Do
724	Find Pivot Index	Easy	To Do	To Do
725	Split Linked List in Parts	Medium	To Do	To Do
726	Number of Atoms	Hard	To Do	To Do
727	Minimum Window Subsequence 🔒	Hard	To Do	To Do
728	Self Dividing Numbers	Easy	To Do	To Do
729	My Calendar I	Medium	To Do	To Do
730	Count Different Palindromic Subsequences	Hard	To Do	To Do
731	My Calendar II	Medium	To Do	To Do
732	My Calendar III	Hard	To Do	To Do
733	Flood Fill	Easy	To Do	To Do
734	Sentence Similarity 🔒	Easy	To Do	To Do
735	Asteroid Collision	Medium	To Do	To Do
736	Parse Lisp Expression	Hard	To Do	To Do
737	Sentence Similarity II 🔒	Medium	To Do	To Do
738	Monotone Increasing Digits	Medium	To Do	To Do
739	Daily Temperatures	Medium	To Do	To Do
740	Delete and Earn	Medium	To Do	To Do
741	Cherry Pickup	Hard	To Do	To Do
709	To Lower Case	Easy	To Do	To Do
742	Closest Leaf in a Binary Tree 🔒	Medium	To Do	To Do
743	Network Delay Time	Medium	To Do	To Do
744	Find Smallest Letter Greater Than Target	Easy	To Do	To Do
745	Prefix and Suffix Search	Hard	To Do	To Do
746	Min Cost Climbing Stairs	Easy	To Do	To Do
747	Largest Number At Least Twice of Others	Easy	To Do	To Do
748	Shortest Completing Word	Easy	To Do	To Do
749	Contain Virus	Hard	To Do	To Do
750	Number Of Corner Rectangles 🔒	Medium	To Do	To Do
751	IP to CIDR 🔒	Medium	To Do	To Do
752	Open the Lock	Medium	To Do	To Do
753	Cracking the Safe	Hard	To Do	To Do
754	Reach a Number	Medium	To Do	To Do
755	Pour Water 🔒	Medium	To Do	To Do
756	Pyramid Transition Matrix	Medium	To Do	To Do
426	Convert Binary Search Tree to Sorted Doubly Linked List 🔒	Medium	To Do	To Do
757	Set Intersection Size At Least Two	Hard	To Do	To Do
758	Bold Words in String 🔒	Medium	To Do	To Do
759	Employee Free Time 🔒	Hard	To Do	To Do
760	Find Anagram Mappings 🔒	Easy	To Do	To Do
761	Special Binary String	Hard	To Do	To Do
429	N-ary Tree Level Order Traversal	Medium	To Do	To Do
428	Serialize and Deserialize N-ary Tree 🔒	Hard	To Do	To Do
430	Flatten a Multilevel Doubly Linked List	Medium	To Do	To Do
762	Prime Number of Set Bits in Binary Representation	Easy	To Do	To Do
763	Partition Labels	Medium	To Do	To Do
764	Largest Plus Sign	Medium	To Do	To Do
765	Couples Holding Hands	Hard	To Do	To Do
431	Encode N-ary Tree to Binary Tree 🔒	Hard	To Do	To Do
427	Construct Quad Tree	Medium	To Do	To Do
558	Logical OR of Two Binary Grids Represented as Quad-Trees	Medium	To Do	To Do
559	Maximum Depth of N-ary Tree	Easy	To Do	To Do
589	N-ary Tree Preorder Traversal	Easy	To Do	To Do
590	N-ary Tree Postorder Traversal	Easy	To Do	To Do
766	Toeplitz Matrix	Easy	To Do	To Do
767	Reorganize String	Medium	To Do	To Do
768	Max Chunks To Make Sorted II	Hard	To Do	To Do
769	Max Chunks To Make Sorted	Medium	To Do	To Do
770	Basic Calculator IV	Hard	To Do	To Do
771	Jewels and Stones	Easy	To Do	To Do
700	Search in a Binary Search Tree	Easy	To Do	To Do
701	Insert into a Binary Search Tree	Medium	To Do	To Do
772	Basic Calculator III 🔒	Hard	To Do	To Do
702	Search in a Sorted Array of Unknown Size 🔒	Medium	To Do	To Do
773	Sliding Puzzle	Hard	To Do	To Do
774	Minimize Max Distance to Gas Station 🔒	Hard	To Do	To Do
703	Kth Largest Element in a Stream	Easy	To Do	To Do
775	Global and Local Inversions	Medium	To Do	To Do
776	Split BST 🔒	Medium	To Do	To Do
704	Binary Search	Easy	To Do	To Do
777	Swap Adjacent in LR String	Medium	To Do	To Do
778	Swim in Rising Water	Hard	To Do	To Do
779	K-th Symbol in Grammar	Medium	To Do	To Do
780	Reaching Points	Hard	To Do	To Do
781	Rabbits in Forest	Medium	To Do	To Do
782	Transform to Chessboard	Hard	To Do	To Do
783	Minimum Distance Between BST Nodes	Easy	To Do	To Do
784	Letter Case Permutation	Medium	To Do	To Do
785	Is Graph Bipartite?	Medium	To Do	To Do
786	K-th Smallest Prime Fraction	Medium	To Do	To Do
787	Cheapest Flights Within K Stops	Medium	JavaScript	To Do
788	Rotated Digits	Medium	To Do	To Do
789	Escape The Ghosts	Medium	To Do	To Do
790	Domino and Tromino Tiling	Medium	To Do	To Do
791	Custom Sort String	Medium	To Do	To Do
792	Number of Matching Subsequences	Medium	To Do	To Do
793	Preimage Size of Factorial Zeroes Function	Hard	To Do	To Do
794	Valid Tic-Tac-Toe State	Medium	To Do	To Do
795	Number of Subarrays with Bounded Maximum	Medium	To Do	To Do
796	Rotate String	Easy	To Do	To Do
797	All Paths From Source to Target	Medium	To Do	To Do
798	Smallest Rotation with Highest Score	Hard	To Do	To Do
799	Champagne Tower	Medium	To Do	To Do
705	Design HashSet	Easy	To Do	To Do
706	Design HashMap	Easy	To Do	To Do
800	Similar RGB Color 🔒	Easy	To Do	To Do
801	Minimum Swaps To Make Sequences Increasing	Hard	To Do	To Do
802	Find Eventual Safe States	Medium	To Do	To Do
803	Bricks Falling When Hit	Hard	To Do	To Do
804	Unique Morse Code Words	Easy	To Do	To Do
805	Split Array With Same Average	Hard	To Do	To Do
806	Number of Lines To Write String	Easy	To Do	To Do
807	Max Increase to Keep City Skyline	Medium	To Do	To Do
808	Soup Servings	Medium	To Do	To Do
809	Expressive Words	Medium	To Do	To Do
810	Chalkboard XOR Game	Hard	To Do	To Do
811	Subdomain Visit Count	Medium	To Do	To Do
812	Largest Triangle Area	Easy	To Do	To Do
813	Largest Sum of Averages	Medium	To Do	To Do
814	Binary Tree Pruning	Medium	To Do	To Do
815	Bus Routes	Hard	To Do	To Do
816	Ambiguous Coordinates	Medium	To Do	To Do
817	Linked List Components	Medium	To Do	To Do
818	Race Car	Hard	To Do	To Do
819	Most Common Word	Easy	To Do	To Do
707	Design Linked List	Medium	To Do	To Do
820	Short Encoding of Words	Medium	To Do	To Do
821	Shortest Distance to a Character	Easy	To Do	To Do
822	Card Flipping Game	Medium	To Do	To Do
823	Binary Trees With Factors	Medium	To Do	To Do
708	Insert into a Sorted Circular Linked List 🔒	Medium	To Do	To Do
824	Goat Latin	Easy	To Do	To Do
825	Friends Of Appropriate Ages	Medium	To Do	To Do
826	Most Profit Assigning Work	Medium	To Do	To Do
827	Making A Large Island	Hard	To Do	To Do
828	Count Unique Characters of All Substrings of a Given String	Hard	To Do	To Do
829	Consecutive Numbers Sum	Hard	To Do	To Do
830	Positions of Large Groups	Easy	To Do	To Do
831	Masking Personal Information	Medium	To Do	To Do
641	Design Circular Deque	Medium	To Do	To Do
622	Design Circular Queue	Medium	To Do	To Do
832	Flipping an Image	Easy	To Do	To Do
833	Find And Replace in String	Medium	To Do	To Do
834	Sum of Distances in Tree	Hard	To Do	To Do
835	Image Overlap	Medium	To Do	To Do
489	Robot Room Cleaner 🔒	Hard	To Do	To Do
836	Rectangle Overlap	Easy	To Do	To Do
837	New 21 Game	Medium	To Do	To Do
838	Push Dominoes	Medium	To Do	To Do
839	Similar String Groups	Hard	To Do	To Do
840	Magic Squares In Grid	Medium	To Do	To Do
841	Keys and Rooms	Medium	To Do	To Do
842	Split Array into Fibonacci Sequence	Medium	To Do	To Do
843	Guess the Word	Hard	To Do	To Do
844	Backspace String Compare	Easy	To Do	To Do
845	Longest Mountain in Array	Medium	To Do	To Do
846	Hand of Straights	Medium	To Do	To Do
847	Shortest Path Visiting All Nodes	Hard	To Do	To Do
848	Shifting Letters	Medium	To Do	To Do
849	Maximize Distance to Closest Person	Medium	To Do	To Do
850	Rectangle Area II	Hard	To Do	To Do
851	Loud and Rich	Medium	To Do	To Do
852	Peak Index in a Mountain Array	Medium	To Do	To Do
853	Car Fleet	Medium	To Do	To Do
854	K-Similar Strings	Hard	To Do	To Do
855	Exam Room	Medium	To Do	To Do
856	Score of Parentheses	Medium	To Do	To Do
857	Minimum Cost to Hire K Workers	Hard	To Do	To Do
858	Mirror Reflection	Medium	To Do	To Do
859	Buddy Strings	Easy	To Do	To Do
860	Lemonade Change	Easy	To Do	To Do
861	Score After Flipping Matrix	Medium	To Do	To Do
862	Shortest Subarray with Sum at Least K	Hard	To Do	To Do
863	All Nodes Distance K in Binary Tree	Medium	To Do	To Do
710	Random Pick with Blacklist	Hard	To Do	To Do
864	Shortest Path to Get All Keys	Hard	To Do	To Do
865	Smallest Subtree with all the Deepest Nodes	Medium	To Do	To Do
866	Prime Palindrome	Medium	To Do	To Do
867	Transpose Matrix	Easy	To Do	To Do
868	Binary Gap	Easy	To Do	To Do
869	Reordered Power of 2	Medium	To Do	To Do
870	Advantage Shuffle	Medium	To Do	To Do
871	Minimum Number of Refueling Stops	Hard	To Do	To Do
470	Implement Rand10() Using Rand7()	Medium	To Do	To Do
872	Leaf-Similar Trees	Easy	To Do	To Do
873	Length of Longest Fibonacci Subsequence	Medium	To Do	To Do
874	Walking Robot Simulation	Medium	To Do	To Do
875	Koko Eating Bananas	Medium	To Do	To Do
876	Middle of the Linked List	Easy	To Do	To Do
877	Stone Game	Medium	To Do	To Do
878	Nth Magical Number	Hard	To Do	To Do
879	Profitable Schemes	Hard	To Do	To Do
528	Random Pick with Weight	Medium	JavaScript	To Do
519	Random Flip Matrix	Medium	To Do	To Do
497	Random Point in Non-overlapping Rectangles	Medium	To Do	To Do
478	Generate Random Point in a Circle	Medium	To Do	To Do
880	Decoded String at Index	Medium	To Do	To Do
881	Boats to Save People	Medium	To Do	To Do
882	Reachable Nodes In Subdivided Graph	Hard	To Do	To Do
883	Projection Area of 3D Shapes	Easy	To Do	To Do
884	Uncommon Words from Two Sentences	Easy	To Do	To Do
885	Spiral Matrix III	Medium	To Do	To Do
886	Possible Bipartition	Medium	To Do	To Do
887	Super Egg Drop	Hard	To Do	To Do
888	Fair Candy Swap	Easy	To Do	To Do
889	Construct Binary Tree from Preorder and Postorder Traversal	Medium	To Do	To Do
890	Find and Replace Pattern	Medium	To Do	To Do
891	Sum of Subsequence Widths	Hard	To Do	To Do
892	Surface Area of 3D Shapes	Easy	To Do	To Do
893	Groups of Special-Equivalent Strings	Medium	To Do	To Do
894	All Possible Full Binary Trees	Medium	To Do	To Do
895	Maximum Frequency Stack	Hard	To Do	To Do
896	Monotonic Array	Easy	To Do	To Do
897	Increasing Order Search Tree	Easy	To Do	To Do
898	Bitwise ORs of Subarrays	Medium	To Do	To Do
899	Orderly Queue	Hard	To Do	To Do
900	RLE Iterator	Medium	To Do	To Do
901	Online Stock Span	Medium	To Do	To Do
902	Numbers At Most N Given Digit Set	Hard	To Do	To Do
903	Valid Permutations for DI Sequence	Hard	To Do	To Do
904	Fruit Into Baskets	Medium	To Do	To Do
905	Sort Array By Parity	Easy	To Do	To Do
906	Super Palindromes	Hard	To Do	To Do
907	Sum of Subarray Minimums	Medium	To Do	To Do
908	Smallest Range I	Easy	To Do	To Do
909	Snakes and Ladders	Medium	To Do	To Do
910	Smallest Range II	Medium	To Do	To Do
911	Online Election	Medium	To Do	To Do
912	Sort an Array	Medium	To Do	To Do
913	Cat and Mouse	Hard	To Do	To Do
914	X of a Kind in a Deck of Cards	Easy	To Do	To Do
915	Partition Array into Disjoint Intervals	Medium	To Do	To Do
916	Word Subsets	Medium	To Do	To Do
917	Reverse Only Letters	Easy	To Do	To Do
918	Maximum Sum Circular Subarray	Medium	JavaScript	To Do
919	Complete Binary Tree Inserter	Medium	To Do	To Do
920	Number of Music Playlists	Hard	To Do	To Do
921	Minimum Add to Make Parentheses Valid	Medium	To Do	To Do
922	Sort Array By Parity II	Easy	To Do	To Do
923	3Sum With Multiplicity	Medium	To Do	To Do
924	Minimize Malware Spread	Hard	To Do	To Do
925	Long Pressed Name	Easy	To Do	To Do
926	Flip String to Monotone Increasing	Medium	To Do	To Do
927	Three Equal Parts	Hard	To Do	To Do
928	Minimize Malware Spread II	Hard	To Do	To Do
929	Unique Email Addresses	Easy	To Do	To Do
930	Binary Subarrays With Sum	Medium	To Do	To Do
931	Minimum Falling Path Sum	Medium	To Do	To Do
932	Beautiful Array	Medium	To Do	To Do
933	Number of Recent Calls	Easy	To Do	To Do
934	Shortest Bridge	Medium	To Do	To Do
935	Knight Dialer	Medium	To Do	To Do
936	Stamping The Sequence	Hard	To Do	To Do
937	Reorder Data in Log Files	Medium	To Do	To Do
938	Range Sum of BST	Easy	To Do	To Do
939	Minimum Area Rectangle	Medium	To Do	To Do
940	Distinct Subsequences II	Hard	To Do	To Do
941	Valid Mountain Array	Easy	To Do	To Do
942	DI String Match	Easy	To Do	To Do
943	Find the Shortest Superstring	Hard	To Do	To Do
944	Delete Columns to Make Sorted	Easy	To Do	To Do
945	Minimum Increment to Make Array Unique	Medium	To Do	To Do
946	Validate Stack Sequences	Medium	To Do	To Do
947	Most Stones Removed with Same Row or Column	Medium	To Do	To Do
948	Bag of Tokens	Medium	To Do	To Do
949	Largest Time for Given Digits	Medium	To Do	To Do
950	Reveal Cards In Increasing Order	Medium	To Do	To Do
951	Flip Equivalent Binary Trees	Medium	To Do	To Do
952	Largest Component Size by Common Factor	Hard	To Do	To Do
953	Verifying an Alien Dictionary	Easy	To Do	To Do
954	Array of Doubled Pairs	Medium	To Do	To Do
955	Delete Columns to Make Sorted II	Medium	To Do	To Do
956	Tallest Billboard	Hard	To Do	To Do
957	Prison Cells After N Days	Medium	To Do	To Do
958	Check Completeness of a Binary Tree	Medium	To Do	To Do
959	Regions Cut By Slashes	Medium	To Do	To Do
960	Delete Columns to Make Sorted III	Hard	To Do	To Do
961	N-Repeated Element in Size 2N Array	Easy	To Do	To Do
962	Maximum Width Ramp	Medium	To Do	To Do
963	Minimum Area Rectangle II	Medium	To Do	To Do
964	Least Operators to Express Number	Hard	To Do	To Do
965	Univalued Binary Tree	Easy	To Do	To Do
966	Vowel Spellchecker	Medium	To Do	To Do
967	Numbers With Same Consecutive Differences	Medium	To Do	To Do
968	Binary Tree Cameras	Hard	To Do	To Do
969	Pancake Sorting	Medium	To Do	To Do
970	Powerful Integers	Medium	To Do	To Do
971	Flip Binary Tree To Match Preorder Traversal	Medium	To Do	To Do
972	Equal Rational Numbers	Hard	To Do	To Do
509	Fibonacci Number	Easy	To Do	To Do
973	K Closest Points to Origin	Medium	To Do	To Do
974	Subarray Sums Divisible by K	Medium	To Do	To Do
975	Odd Even Jump	Hard	To Do	To Do
976	Largest Perimeter Triangle	Easy	To Do	To Do
977	Squares of a Sorted Array	Easy	To Do	To Do
978	Longest Turbulent Subarray	Medium	To Do	To Do
979	Distribute Coins in Binary Tree	Medium	To Do	To Do
980	Unique Paths III	Hard	To Do	To Do
981	Time Based Key-Value Store	Medium	To Do	To Do
982	Triples with Bitwise AND Equal To Zero	Hard	To Do	To Do
983	Minimum Cost For Tickets	Medium	To Do	To Do
984	String Without AAA or BBB	Medium	To Do	To Do
985	Sum of Even Numbers After Queries	Medium	To Do	To Do
986	Interval List Intersections	Medium	To Do	To Do
987	Vertical Order Traversal of a Binary Tree	Hard	To Do	To Do
988	Smallest String Starting From Leaf	Medium	To Do	To Do
989	Add to Array-Form of Integer	Easy	To Do	To Do
990	Satisfiability of Equality Equations	Medium	To Do	To Do
991	Broken Calculator	Medium	To Do	To Do
992	Subarrays with K Different Integers	Hard	To Do	To Do
993	Cousins in Binary Tree	Easy	To Do	To Do
994	Rotting Oranges	Medium	To Do	To Do
995	Minimum Number of K Consecutive Bit Flips	Hard	To Do	To Do
996	Number of Squareful Arrays	Hard	To Do	To Do
997	Find the Town Judge	Easy	To Do	To Do
998	Maximum Binary Tree II	Medium	To Do	To Do
999	Available Captures for Rook	Easy	To Do	To Do
1000	Minimum Cost to Merge Stones	Hard	To Do	To Do
1001	Grid Illumination	Hard	To Do	To Do
1002	Find Common Characters	Easy	To Do	To Do
1003	Check If Word Is Valid After Substitutions	Medium	To Do	To Do
1004	Max Consecutive Ones III	Medium	To Do	To Do
1005	Maximize Sum Of Array After K Negations	Easy	To Do	To Do
1006	Clumsy Factorial	Medium	To Do	To Do
1007	Minimum Domino Rotations For Equal Row	Medium	To Do	To Do
1008	Construct Binary Search Tree from Preorder Traversal	Medium	JavaScript	To Do
1055	Shortest Way to Form String 🔒	Medium	To Do	To Do
1057	Campus Bikes 🔒	Medium	To Do	To Do
1058	Minimize Rounding Error to Meet Target 🔒	Medium	To Do	To Do
1009	Complement of Base 10 Integer	Easy	To Do	To Do
1010	Pairs of Songs With Total Durations Divisible by 60	Medium	To Do	To Do
1011	Capacity To Ship Packages Within D Days	Medium	To Do	To Do
1012	Numbers With Repeated Digits	Hard	To Do	To Do
1061	Lexicographically Smallest Equivalent String	Medium	To Do	To Do
1060	Missing Element in Sorted Array 🔒	Medium	To Do	To Do
1062	Longest Repeating Substring 🔒	Medium	To Do	To Do
1063	Number of Valid Subarrays 🔒	Hard	To Do	To Do
1013	Partition Array Into Three Parts With Equal Sum	Easy	To Do	To Do
1014	Best Sightseeing Pair	Medium	To Do	To Do
1015	Smallest Integer Divisible by K	Medium	To Do	To Do
1016	Binary String With Substrings Representing 1 To N	Medium	To Do	To Do
1064	Fixed Point 🔒	Easy	To Do	To Do
1066	Campus Bikes II 🔒	Medium	To Do	To Do
1067	Digit Count in Range 🔒	Hard	To Do	To Do
1056	Confusing Number 🔒	Easy	To Do	To Do
1017	Convert to Base -2	Medium	To Do	To Do
1018	Binary Prefix Divisible By 5	Easy	To Do	To Do
1019	Next Greater Node In Linked List	Medium	To Do	To Do
1020	Number of Enclaves	Medium	To Do	To Do
1086	High Five 🔒	Easy	To Do	To Do
1065	Index Pairs of a String 🔒	Easy	To Do	To Do
1087	Brace Expansion 🔒	Medium	To Do	To Do
1088	Confusing Number II 🔒	Hard	To Do	To Do
1021	Remove Outermost Parentheses	Easy	To Do	To Do
1022	Sum of Root To Leaf Binary Numbers	Easy	To Do	To Do
1023	Camelcase Matching	Medium	To Do	To Do
1024	Video Stitching	Medium	To Do	To Do
1085	Sum of Digits in the Minimum Number 🔒	Easy	To Do	To Do
1099	Two Sum Less Than K 🔒	Easy	To Do	To Do
1100	Find K-Length Substrings With No Repeated Characters 🔒	Medium	To Do	To Do
1101	The Earliest Moment When Everyone Become Friends 🔒	Medium	To Do	To Do
1025	Divisor Game	Easy	To Do	To Do
1027	Longest Arithmetic Subsequence	Medium	To Do	To Do
1118	Number of Days in a Month 🔒	Easy	To Do	To Do
1119	Remove Vowels from a String 🔒	Easy	To Do	To Do
1134	Armstrong Number 🔒	Easy	To Do	To Do
1120	Maximum Average Subtree 🔒	Medium	To Do	To Do
1026	Maximum Difference Between Node and Ancestor	Medium	To Do	To Do
1028	Recover a Tree From Preorder Traversal	Hard	To Do	To Do
1030	Matrix Cells in Distance Order	Easy	To Do	To Do
1029	Two City Scheduling	Medium	JavaScript	To Do
1031	Maximum Sum of Two Non-Overlapping Subarrays	Medium	To Do	To Do
1032	Stream of Characters	Hard	To Do	To Do
1133	Largest Unique Number 🔒	Easy	To Do	To Do
1102	Path With Maximum Minimum Value 🔒	Medium	To Do	To Do
1135	Connecting Cities With Minimum Cost 🔒	Medium	To Do	To Do
1136	Parallel Courses 🔒	Medium	To Do	To Do
1150	Check If a Number Is Majority Element in a Sorted Array 🔒	Easy	To Do	To Do
1033	Moving Stones Until Consecutive	Medium	To Do	To Do
1034	Coloring A Border	Medium	To Do	To Do
1035	Uncrossed Lines	Medium	JavaScript	To Do
1036	Escape a Large Maze	Hard	To Do	To Do
1151	Minimum Swaps to Group All 1's Together 🔒	Medium	To Do	To Do
1152	Analyze User Website Visit Pattern 🔒	Medium	To Do	To Do
1039	Minimum Score Triangulation of Polygon	Medium	To Do	To Do
1160	Find Words That Can Be Formed by Characters	Easy	To Do	To Do
1040	Moving Stones Until Consecutive II	Medium	To Do	To Do
1038	Binary Search Tree to Greater Sum Tree	Medium	To Do	To Do
1037	Valid Boomerang	Easy	To Do	python
1161	Maximum Level Sum of a Binary Tree	Medium	To Do	To Do
1162	As Far from Land as Possible	Medium	To Do	To Do
1121	Divide Array Into Increasing Sequences 🔒	Hard	To Do	To Do
1041	Robot Bounded In Circle	Medium	To Do	To Do
1042	Flower Planting With No Adjacent	Medium	To Do	To Do
1043	Partition Array for Maximum Sum	Medium	To Do	To Do
1044	Longest Duplicate Substring	Hard	To Do	To Do
1165	Single-Row Keyboard 🔒	Easy	To Do	To Do
1153	String Transforms Into Another String 🔒	Hard	To Do	To Do
1166	Design File System 🔒	Medium	To Do	To Do
1167	Minimum Cost to Connect Sticks 🔒	Medium	To Do	To Do
1046	Last Stone Weight	Easy	To Do	To Do
1047	Remove All Adjacent Duplicates In String	Easy	To Do	To Do
1048	Longest String Chain	Medium	To Do	To Do
1049	Last Stone Weight II	Medium	To Do	To Do
1180	Count Substrings with Only One Distinct Letter 🔒	Easy	To Do	To Do
1181	Before and After Puzzle 🔒	Medium	To Do	To Do
1163	Last Substring in Lexicographical Order	Hard	To Do	To Do
1182	Shortest Distance to Target Color 🔒	Medium	To Do	To Do
1045	Customers Who Bought All Products	Medium	To Do	To Do
1050	Actors and Directors Who Cooperated At Least Three Times	Easy	To Do	To Do
1051	Height Checker	Easy	To Do	To Do
1052	Grumpy Bookstore Owner	Medium	To Do	To Do
1053	Previous Permutation With One Swap	Medium	To Do	To Do
1054	Distant Barcodes	Medium	To Do	To Do
1196	How Many Apples Can You Put into the Basket 🔒	Easy	To Do	To Do
1197	Minimum Knight Moves 🔒	Medium	To Do	To Do
1198	Find Smallest Common Element in All Rows 🔒	Medium	To Do	To Do
1168	Optimize Water Distribution in a Village 🔒	Hard	To Do	To Do
1074	Number of Submatrices That Sum to Target	Hard	To Do	To Do
1071	Greatest Common Divisor of Strings	Easy	To Do	To Do
1072	Flip Columns For Maximum Number of Equal Rows	Medium	To Do	To Do
1073	Adding Two Negabinary Numbers	Medium	To Do	To Do
1213	Intersection of Three Sorted Arrays 🔒	Easy	To Do	To Do
1214	Two Sum BSTs 🔒	Medium	To Do	To Do
1215	Stepping Numbers 🔒	Medium	To Do	To Do
1183	Maximum Number of Ones 🔒	Hard	To Do	To Do
1068	Product Sales Analysis I	Easy	To Do	To Do
1069	Product Sales Analysis II 🔒	Easy	To Do	To Do
1070	Product Sales Analysis III	Medium	To Do	To Do
1078	Occurrences After Bigram	Easy	To Do	To Do
1080	Insufficient Nodes in Root to Leaf Paths	Medium	To Do	To Do
1081	Smallest Subsequence of Distinct Characters	Medium	To Do	To Do
1079	Letter Tile Possibilities	Medium	To Do	To Do
1075	Project Employees I	Easy	To Do	To Do
1076	Project Employees II 🔒	Easy	To Do	To Do
1077	Project Employees III 🔒	Medium	To Do	To Do
1228	Missing Number In Arithmetic Progression 🔒	Easy	To Do	To Do
1229	Meeting Scheduler 🔒	Medium	To Do	To Do
1230	Toss Strange Coins 🔒	Medium	To Do	To Do
1199	Minimum Time to Build Blocks 🔒	Hard	To Do	To Do
1089	Duplicate Zeros	Easy	To Do	To Do
1090	Largest Values From Labels	Medium	To Do	To Do
1092	Shortest Common Supersequence	Hard	To Do	To Do
1091	Shortest Path in Binary Matrix	Medium	To Do	To Do
1082	Sales Analysis I 🔒	Easy	To Do	To Do
1083	Sales Analysis II 🔒	Easy	To Do	To Do
1084	Sales Analysis III	Easy	To Do	To Do
1243	Array Transformation 🔒	Easy	To Do	To Do
1244	Design A Leaderboard 🔒	Medium	To Do	To Do
1245	Tree Diameter 🔒	Medium	To Do	To Do
1216	Valid Palindrome III 🔒	Hard	To Do	To Do
511	Game Play Analysis I	Easy	To Do	To Do
512	Game Play Analysis II 🔒	Easy	To Do	To Do
534	Game Play Analysis III 🔒	Medium	To Do	To Do
550	Game Play Analysis IV	Medium	To Do	To Do
1093	Statistics from a Large Sample	Medium	To Do	To Do
1094	Car Pooling	Medium	To Do	To Do
1095	Find in Mountain Array	Hard	To Do	To Do
1117	Building H2O	Medium	To Do	To Do
1115	Print FooBar Alternately	Medium	To Do	To Do
1096	Brace Expansion II	Hard	To Do	To Do
1256	Encode Number 🔒	Medium	To Do	To Do
1257	Smallest Common Region 🔒	Medium	To Do	To Do
1258	Synonymous Sentences 🔒	Medium	To Do	To Do
1231	Divide Chocolate 🔒	Hard	To Do	To Do
1097	Game Play Analysis V 🔒	Hard	To Do	To Do
1104	Path In Zigzag Labelled Binary Tree	Medium	To Do	To Do
1103	Distribute Candies to People	Easy	To Do	To Do
1105	Filling Bookcase Shelves	Medium	To Do	To Do
1106	Parsing A Boolean Expression	Hard	To Do	To Do
1098	Unpopular Books 🔒	Medium	To Do	To Do
1271	Hexspeak 🔒	Easy	To Do	To Do
1272	Remove Interval 🔒	Medium	To Do	To Do
1273	Delete Tree Nodes 🔒	Medium	To Do	To Do
1246	Palindrome Removal 🔒	Hard	To Do	To Do
1114	Print in Order	Easy	To Do	To Do
1107	New Users Daily Count 🔒	Medium	To Do	To Do
1108	Defanging an IP Address	Easy	To Do	To Do
1109	Corporate Flight Bookings	Medium	To Do	To Do
1110	Delete Nodes And Return Forest	Medium	To Do	To Do
1111	Maximum Nesting Depth of Two Valid Parentheses Strings	Medium	To Do	To Do
1188	Design Bounded Blocking Queue 🔒	Medium	To Do	To Do
1619	Mean of Array After Removing Some Elements	Easy	To Do	To Do
1286	Iterator for Combination	Medium	To Do	To Do
1291	Sequential Digits	Medium	To Do	To Do
1259	Handshakes That Don't Cross 🔒	Hard	To Do	To Do
1112	Highest Grade For Each Student 🔒	Medium	To Do	To Do
1113	Reported Posts 🔒	Easy	To Do	To Do
1116	Print Zero Even Odd	Medium	To Do	To Do
1122	Relative Sort Array	Easy	To Do	To Do
1123	Lowest Common Ancestor of Deepest Leaves	Medium	To Do	To Do
1124	Longest Well-Performing Interval	Medium	To Do	To Do
1125	Smallest Sufficient Team	Hard	To Do	To Do
1287	Element Appearing More Than 25% In Sorted Array	Easy	To Do	To Do
1288	Remove Covered Intervals	Medium	To Do	To Do
1627	Graph Connectivity With Threshold	Hard	To Do	To Do
1289	Minimum Falling Path Sum II	Hard	To Do	To Do
1126	Active Businesses 🔒	Medium	To Do	To Do
1127	User Purchase Platform 🔒	Hard	To Do	To Do
1128	Number of Equivalent Domino Pairs	Easy	To Do	To Do
1130	Minimum Cost Tree From Leaf Values	Medium	To Do	To Do
1129	Shortest Path with Alternating Colors	Medium	To Do	To Do
1131	Maximum of Absolute Value Expression	Medium	To Do	To Do
1299	Replace Elements with Greatest Element on Right Side	Easy	To Do	To Do
1300	Sum of Mutated Array Closest to Target	Medium	To Do	To Do
1274	Number of Ships in a Rectangle 🔒	Hard	To Do	To Do
1301	Number of Paths with Max Score	Hard	To Do	To Do
1137	N-th Tribonacci Number	Easy	To Do	To Do
1132	Reported Posts II 🔒	Medium	To Do	To Do
1138	Alphabet Board Path	Medium	To Do	To Do
1139	Largest 1-Bordered Square	Medium	To Do	To Do
1140	Stone Game II	Medium	To Do	To Do
1313	Decompress Run-Length Encoded List	Easy	To Do	To Do
1314	Matrix Block Sum	Medium	To Do	To Do
1315	Sum of Nodes with Even-Valued Grandparent	Medium	To Do	To Do
1316	Distinct Echo Substrings	Hard	To Do	To Do
1141	User Activity for the Past 30 Days I	Easy	To Do	To Do
1142	User Activity for the Past 30 Days II 🔒	Easy	To Do	To Do
1144	Decrease Elements To Make Array Zigzag	Medium	To Do	To Do
1145	Binary Tree Coloring Game	Medium	To Do	To Do
1146	Snapshot Array	Medium	To Do	To Do
1143	Longest Common Subsequence	Medium	To Do	To Do
1147	Longest Chunked Palindrome Decomposition	Hard	To Do	To Do
1328	Break a Palindrome	Medium	To Do	To Do
1329	Sort the Matrix Diagonally	Medium	To Do	To Do
1302	Deepest Leaves Sum	Medium	To Do	To Do
1330	Reverse Subarray To Maximize Array Value	Hard	To Do	To Do
1331	Rank Transform of an Array	Easy	To Do	To Do
1632	Rank Transform of a Matrix	Hard	To Do	To Do
1148	Article Views I	Easy	To Do	To Do
1149	Article Views II 🔒	Medium	To Do	To Do
1154	Day of the Year	Easy	To Do	To Do
1156	Swap For Longest Repeated Character Substring	Medium	To Do	To Do
1157	Online Majority Element In Subarray	Hard	To Do	To Do
1155	Number of Dice Rolls With Target Sum	Medium	To Do	To Do
1935	Maximum Number of Words You Can Type	Easy	To Do	To Do
1171	Remove Zero Sum Consecutive Nodes from Linked List	Medium	To Do	To Do
1158	Market Analysis I	Medium	To Do	To Do
1159	Market Analysis II 🔒	Hard	To Do	To Do
1172	Dinner Plate Stacks	Hard	To Do	To Do
1236	Web Crawler 🔒	Medium	To Do	To Do
1169	Invalid Transactions	Medium	To Do	To Do
1170	Compare Strings by Frequency of the Smallest Character	Medium	To Do	To Do
1360	Number of Days Between Two Dates	Easy	To Do	To Do
1361	Validate Binary Tree Nodes	Medium	To Do	To Do
1362	Closest Divisors	Medium	To Do	To Do
1363	Largest Multiple of Three	Hard	To Do	To Do
1164	Product Price at a Given Date	Medium	To Do	To Do
1175	Prime Arrangements	Easy	To Do	To Do
1176	Diet Plan Performance 🔒	Easy	To Do	To Do
1177	Can Make Palindrome from Substring	Medium	To Do	To Do
1178	Number of Valid Words for Each Puzzle	Hard	To Do	To Do
1507	Reformat Date	Easy	To Do	To Do
1390	Four Divisors	Medium	To Do	To Do
1382	Balance a Binary Search Tree	Medium	To Do	To Do
1425	Constrained Subsequence Sum	Hard	To Do	To Do
1184	Distance Between Bus Stops	Easy	To Do	To Do
1186	Maximum Subarray Sum with One Deletion	Medium	To Do	To Do
1185	Day of the Week	Easy	To Do	To Do
1187	Make Array Strictly Increasing	Hard	To Do	To Do
1173	Immediate Food Delivery I 🔒	Easy	To Do	To Do
1174	Immediate Food Delivery II	Medium	To Do	To Do
1550	Three Consecutive Odds	Easy	To Do	To Do
2080	Range Frequency Queries	Medium	To Do	To Do
1954	Minimum Garden Perimeter to Collect Enough Apples	Medium	To Do	To Do
1483	Kth Ancestor of a Tree Node	Hard	To Do	To Do
1189	Maximum Number of Balloons	Easy	To Do	To Do
1190	Reverse Substrings Between Each Pair of Parentheses	Medium	To Do	To Do
1191	K-Concatenation Maximum Sum	Medium	To Do	To Do
1192	Critical Connections in a Network	Hard	To Do	To Do
1179	Reformat Department Table	Easy	To Do	To Do
1957	Delete Characters to Make Fancy String	Easy	To Do	To Do
2139	Minimum Moves to Reach Target Score	Medium	To Do	To Do
1405	Longest Happy String	Medium	To Do	To Do
1944	Number of Visible People in a Queue	Hard	To Do	To Do
1200	Minimum Absolute Difference	Easy	To Do	To Do
1201	Ugly Number III	Medium	To Do	To Do
1202	Smallest String With Swaps	Medium	To Do	To Do
1203	Sort Items by Groups Respecting Dependencies	Hard	To Do	To Do
2079	Watering Plants	Medium	To Do	To Do
1895	Largest Magic Square	Medium	To Do	To Do
2201	Count Artifacts That Can Be Extracted	Medium	To Do	To Do
1916	Count Ways to Build Rooms in an Ant Colony	Hard	To Do	To Do
1195	Fizz Buzz Multithreaded	Medium	To Do	To Do
1193	Monthly Transactions I	Medium	To Do	To Do
1194	Tournament Winners 🔒	Hard	To Do	To Do
1207	Unique Number of Occurrences	Easy	To Do	To Do
1209	Remove All Adjacent Duplicates in String II	Medium	To Do	To Do
1208	Get Equal Substrings Within Budget	Medium	To Do	To Do
1210	Minimum Moves to Reach Target with Rotations	Hard	To Do	To Do
1706	Where Will the Ball Fall	Medium	To Do	To Do
1514	Path with Maximum Probability	Medium	To Do	To Do
1862	Sum of Floored Pairs	Hard	To Do	To Do
1204	Last Person to Fit in the Bus	Medium	To Do	To Do
1205	Monthly Transactions II 🔒	Medium	To Do	To Do
1217	Minimum Cost to Move Chips to The Same Position	Easy	To Do	To Do
1218	Longest Arithmetic Subsequence of Given Difference	Medium	To Do	To Do
1219	Path with Maximum Gold	Medium	To Do	To Do
1220	Count Vowels Permutation	Hard	To Do	To Do
2191	Sort the Jumbled Numbers	Medium	To Do	To Do
2310	Sum of Numbers With Units Digit K	Medium	To Do	To Do
2226	Maximum Candies Allocated to K Children	Medium	To Do	To Do
1960	Maximum Product of the Length of Two Palindromic Substrings	Hard	To Do	To Do
1206	Design Skiplist	Hard	To Do	To Do
1211	Queries Quality and Percentage	Easy	To Do	To Do
1212	Team Scores in Football Tournament 🔒	Medium	To Do	To Do
1226	The Dining Philosophers	Medium	To Do	To Do
1221	Split a String in Balanced Strings	Easy	To Do	To Do
1222	Queens That Can Attack the King	Medium	To Do	To Do
1223	Dice Roll Simulation	Hard	To Do	To Do
1224	Maximum Equal Frequency	Hard	To Do	To Do
1427	Perform String Shifts 🔒	Easy	To Do	To Do
2202	Maximize the Topmost Element After K Moves	Medium	To Do	To Do
2204	Distance to a Cycle in Undirected Graph 🔒	Hard	To Do	To Do
2321	Maximum Score Of Spliced Array	Hard	To Do	To Do
1232	Check If It Is a Straight Line	Easy	To Do	To Do
1233	Remove Sub-Folders from the Filesystem	Medium	To Do	To Do
1234	Replace the Substring for Balanced String	Medium	To Do	To Do
1235	Maximum Profit in Job Scheduling	Hard	To Do	To Do
2273	Find Resultant Array After Removing Anagrams	Easy	To Do	To Do
2225	Find Players With Zero or One Losses	Medium	To Do	To Do
2216	Minimum Deletions to Make Array Beautiful	Medium	To Do	To Do
2193	Minimum Number of Moves to Make Palindrome	Hard	To Do	To Do
1225	Report Contiguous Dates 🔒	Hard	To Do	To Do
1237	Find Positive Integer Solution for a Given Equation	Medium	To Do	To Do
1238	Circular Permutation in Binary Representation	Medium	To Do	To Do
1239	Maximum Length of a Concatenated String with Unique Characters	Medium	To Do	To Do
1240	Tiling a Rectangle with the Fewest Squares	Hard	To Do	To Do
1227	Airplane Seat Assignment Probability	Medium	To Do	To Do
2309	Greatest English Letter in Upper and Lower Case	Easy	To Do	To Do
1726	Tuple with Same Product	Medium	To Do	To Do
1429	First Unique Number 🔒	Medium	To Do	To Do
1691	Maximum Height by Stacking Cuboids	Hard	To Do	To Do
1242	Web Crawler Multithreaded 🔒	Medium	To Do	To Do
1247	Minimum Swaps to Make Strings Equal	Medium	To Do	To Do
1248	Count Number of Nice Subarrays	Medium	To Do	To Do
1249	Minimum Remove to Make Valid Parentheses	Medium	To Do	To Do
1250	Check If It Is a Good Array	Hard	To Do	To Do
1428	Leftmost Column with at Least a One 🔒	Medium	To Do	To Do
2217	Find Palindrome With Fixed Length	Medium	To Do	To Do
2312	Selling Pieces of Wood	Hard	To Do	To Do
1241	Number of Comments per Post 🔒	Easy	To Do	To Do
1252	Cells with Odd Values in a Matrix	Easy	To Do	To Do
1253	Reconstruct a 2-Row Binary Matrix	Medium	To Do	To Do
1254	Number of Closed Islands	Medium	To Do	To Do
1255	Maximum Score Words Formed by Letters	Hard	To Do	To Do
2303	Calculate Amount Paid in Taxes	Easy	To Do	To Do
2198	Number of Single Divisor Triplets 🔒	Medium	To Do	To Do
1618	Maximum Font to Fit a Sentence in a Screen 🔒	Medium	To Do	To Do
2189	Number of Ways to Build House of Cards 🔒	Medium	To Do	To Do
1260	Shift 2D Grid	Easy	To Do	To Do
1261	Find Elements in a Contaminated Binary Tree	Medium	To Do	To Do
1262	Greatest Sum Divisible by Three	Medium	To Do	To Do
1263	Minimum Moves to Move a Box to Their Target Location	Hard	To Do	To Do
1251	Average Selling Price	Easy	To Do	To Do
1426	Counting Elements 🔒	Easy	To Do	To Do
2215	Find the Difference of Two Arrays	Easy	To Do	To Do
2218	Maximum Value of K Coins From Piles	Hard	To Do	To Do
2304	Minimum Path Cost in a Grid	Medium	To Do	To Do
1266	Minimum Time Visiting All Points	Easy	To Do	To Do
1267	Count Servers that Communicate	Medium	To Do	To Do
1268	Search Suggestions System	Medium	To Do	To Do
1269	Number of Ways to Stay in the Same Place After Some Steps	Hard	To Do	To Do
1264	Page Recommendations 🔒	Medium	To Do	To Do
1275	Find Winner on a Tic Tac Toe Game	Easy	To Do	To Do
1276	Number of Burgers with No Waste of Ingredients	Medium	To Do	To Do
1277	Count Square Submatrices with All Ones	Medium	JavaScript	To Do
1278	Palindrome Partitioning III	Hard	To Do	To Do
1265	Print Immutable Linked List in Reverse 🔒	Medium	To Do	To Do
1270	All People Report to the Given Manager 🔒	Medium	To Do	To Do
1281	Subtract the Product and Sum of Digits of an Integer	Easy	To Do	To Do
1282	Group the People Given the Group Size They Belong To	Medium	To Do	To Do
1283	Find the Smallest Divisor Given a Threshold	Medium	To Do	To Do
1284	Minimum Number of Flips to Convert Binary Matrix to Zero Matrix	Hard	To Do	To Do
1279	Traffic Light Controlled Intersection 🔒	Easy	To Do	To Do
1290	Convert Binary Number in a Linked List to Integer	Easy	To Do	To Do
1292	Maximum Side Length of a Square with Sum Less than or Equal to Threshold	Medium	To Do	To Do
1293	Shortest Path in a Grid with Obstacles Elimination	Hard	To Do	To Do
1280	Students and Examinations	Easy	To Do	To Do
2229	Check if an Array Is Consecutive 🔒	Easy	To Do	To Do
2305	Fair Distribution of Cookies	Medium	To Do	To Do
2263	Make Array Non-decreasing or Non-increasing 🔒	Hard	To Do	To Do
1285	Find the Start and End Number of Continuous Ranges 🔒	Medium	To Do	To Do
1295	Find Numbers with Even Number of Digits	Easy	To Do	To Do
1296	Divide Array in Sets of K Consecutive Numbers	Medium	To Do	To Do
1297	Maximum Number of Occurrences of a Substring	Medium	To Do	To Do
1298	Maximum Candies You Can Get from Boxes	Hard	To Do	To Do
1294	Weather Type in Each Country 🔒	Easy	To Do	To Do
1304	Find N Unique Integers Sum up to Zero	Easy	To Do	To Do
1305	All Elements in Two Binary Search Trees	Medium	To Do	To Do
1306	Jump Game III	Medium	To Do	To Do
1307	Verbal Arithmetic Puzzle	Hard	To Do	To Do
2269	Find the K-Beauty of a Number	Easy	To Do	To Do
2192	All Ancestors of a Node in a Directed Acyclic Graph	Medium	To Do	To Do
1430	Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree 🔒	Medium	To Do	To Do
2227	Encrypt and Decrypt Strings	Hard	To Do	To Do
1309	Decrypt String from Alphabet to Integer Mapping	Easy	To Do	To Do
1310	XOR Queries of a Subarray	Medium	To Do	To Do
1311	Get Watched Videos by Your Friends	Medium	To Do	To Do
1312	Minimum Insertion Steps to Make a String Palindrome	Hard	To Do	To Do
1303	Find the Team Size 🔒	Easy	To Do	To Do
1308	Running Total for Different Genders 🔒	Medium	To Do	To Do
1317	Convert Integer to the Sum of Two No-Zero Integers	Easy	To Do	To Do
1318	Minimum Flips to Make a OR b Equal to c	Medium	To Do	To Do
1319	Number of Operations to Make Network Connected	Medium	To Do	To Do
1320	Minimum Distance to Type a Word Using Two Fingers	Hard	To Do	To Do
1342	Number of Steps to Reduce a Number to Zero	Easy	To Do	To Do
1343	Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold	Medium	To Do	To Do
1344	Angle Between Hands of a Clock	Medium	To Do	python
1345	Jump Game IV	Hard	To Do	To Do
1323	Maximum 69 Number	Easy	To Do	To Do
1324	Print Words Vertically	Medium	To Do	To Do
1325	Delete Leaves With a Given Value	Medium	To Do	To Do
1326	Minimum Number of Taps to Open to Water a Garden	Hard	To Do	To Do
1321	Restaurant Growth	Medium	To Do	To Do
1322	Ads Performance 🔒	Easy	To Do	To Do
1332	Remove Palindromic Subsequences	Easy	To Do	To Do
1333	Filter Restaurants by Vegan-Friendly, Price and Distance	Medium	To Do	To Do
1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance	Medium	To Do	To Do
1335	Minimum Difficulty of a Job Schedule	Hard	To Do	To Do
1356	Sort Integers by The Number of 1 Bits	Easy	To Do	To Do
1357	Apply Discount Every n Orders	Medium	To Do	To Do
1358	Number of Substrings Containing All Three Characters	Medium	To Do	To Do
1359	Count All Valid Pickup and Delivery Options	Hard	To Do	To Do
1327	List the Products Ordered in a Period	Easy	To Do	To Do
1337	The K Weakest Rows in a Matrix	Easy	To Do	To Do
1338	Reduce Array Size to The Half	Medium	To Do	To Do
1339	Maximum Product of Splitted Binary Tree	Medium	To Do	To Do
1340	Jump Game V	Hard	To Do	To Do
1336	Number of Transactions per Visit 🔒	Hard	To Do	To Do
1346	Check If N and Its Double Exist	Easy	To Do	To Do
1347	Minimum Number of Steps to Make Two Strings Anagram	Medium	To Do	To Do
1348	Tweet Counts Per Frequency	Medium	To Do	To Do
1349	Maximum Students Taking Exam	Hard	To Do	To Do
1370	Increasing Decreasing String	Easy	To Do	To Do
1371	Find the Longest Substring Containing Vowels in Even Counts	Medium	To Do	To Do
1372	Longest ZigZag Path in a Binary Tree	Medium	To Do	To Do
1373	Maximum Sum BST in Binary Tree	Hard	To Do	To Do
1351	Count Negative Numbers in a Sorted Matrix	Easy	To Do	To Do
1352	Product of the Last K Numbers	Medium	To Do	To Do
1353	Maximum Number of Events That Can Be Attended	Medium	To Do	To Do
1354	Construct Target Array With Multiple Sums	Hard	To Do	To Do
1341	Movie Rating	Medium	To Do	To Do
1350	Students With Invalid Departments 🔒	Easy	To Do	To Do
1365	How Many Numbers Are Smaller Than the Current Number	Easy	To Do	To Do
1366	Rank Teams by Votes	Medium	To Do	To Do
1367	Linked List in Binary Tree	Medium	To Do	To Do
1368	Minimum Cost to Make at Least One Valid Path in a Grid	Hard	To Do	To Do
1385	Find the Distance Value Between Two Arrays	Easy	To Do	To Do
1386	Cinema Seat Allocation	Medium	To Do	To Do
1387	Sort Integers by The Power Value	Medium	To Do	To Do
1388	Pizza With 3n Slices	Hard	To Do	To Do
1374	Generate a String With Characters That Have Odd Counts	Easy	To Do	To Do
1375	Number of Times Binary String Is Prefix-Aligned	Medium	To Do	To Do
1376	Time Needed to Inform All Employees	Medium	To Do	To Do
1377	Frog Position After T Seconds	Hard	To Do	To Do
1355	Activity Participants 🔒	Medium	To Do	To Do
1364	Number of Trusted Contacts of a Customer 🔒	Medium	To Do	To Do
1380	Lucky Numbers in a Matrix	Easy	To Do	To Do
1381	Design a Stack With Increment Operation	Medium	To Do	To Do
1379	Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Easy	To Do	To Do
1383	Maximum Performance of a Team	Hard	To Do	To Do
1399	Count Largest Group	Easy	To Do	To Do
1401	Circle and Rectangle Overlapping	Medium	To Do	To Do
1400	Construct K Palindrome Strings	Medium	To Do	To Do
1402	Reducing Dishes	Hard	To Do	To Do
1369	Get the Second Most Recent Activity 🔒	Hard	To Do	To Do
1389	Create Target Array in the Given Order	Easy	To Do	To Do
1391	Check if There is a Valid Path in a Grid	Medium	To Do	To Do
1392	Longest Happy Prefix	Hard	To Do	To Do
1378	Replace Employee ID With The Unique Identifier	Easy	To Do	To Do
1394	Find Lucky Integer in an Array	Easy	To Do	To Do
1395	Count Number of Teams	Medium	To Do	To Do
1396	Design Underground System	Medium	To Do	To Do
1397	Find All Good Strings	Hard	To Do	To Do
1413	Minimum Value to Get Positive Step by Step Sum	Easy	To Do	To Do
1414	Find the Minimum Number of Fibonacci Numbers Whose Sum Is K	Medium	To Do	To Do
1415	The k-th Lexicographical String of All Happy Strings of Length n	Medium	To Do	To Do
1416	Restore The Array	Hard	To Do	To Do
1384	Total Sales Amount by Year 🔒	Hard	To Do	To Do
1403	Minimum Subsequence in Non-Increasing Order	Easy	To Do	To Do
1404	Number of Steps to Reduce a Number in Binary Representation to One	Medium	To Do	To Do
1406	Stone Game III	Hard	To Do	To Do
1393	Capital Gain Loss	Medium	To Do	To Do
1408	String Matching in an Array	Easy	To Do	To Do
1409	Queries on a Permutation With Key	Medium	To Do	To Do
1410	HTML Entity Parser	Medium	To Do	To Do
1411	Number of Ways to Paint N × 3 Grid	Hard	To Do	To Do
1431	Kids With the Greatest Number of Candies	Easy	To Do	To Do
1432	Max Difference You Can Get From Changing an Integer	Medium	To Do	To Do
1433	Check If a String Can Break Another String	Medium	To Do	To Do
1434	Number of Ways to Wear Different Hats to Each Other	Hard	To Do	To Do
1417	Reformat The String	Easy	To Do	To Do
1418	Display Table of Food Orders in a Restaurant	Medium	To Do	To Do
1419	Minimum Number of Frogs Croaking	Medium	To Do	To Do
1420	Build Array Where You Can Find The Maximum Exactly K Comparisons	Hard	To Do	To Do
1398	Customers Who Bought Products A and B but Not C 🔒	Medium	To Do	To Do
1422	Maximum Score After Splitting a String	Easy	To Do	To Do
1423	Maximum Points You Can Obtain from Cards	Medium	To Do	To Do
1424	Diagonal Traverse II	Medium	To Do	To Do
1407	Top Travellers	Easy	To Do	To Do
1446	Consecutive Characters	Easy	To Do	To Do
1447	Simplified Fractions	Medium	To Do	To Do
1448	Count Good Nodes in Binary Tree	Medium	To Do	To Do
1449	Form Largest Integer With Digits That Add up to Target	Hard	To Do	To Do
1412	Find the Quiet Students in All Exams 🔒	Hard	To Do	To Do
1436	Destination City	Easy	To Do	To Do
1437	Check If All 1's Are at Least Length K Places Away	Easy	To Do	To Do
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Medium	To Do	To Do
1439	Find the Kth Smallest Sum of a Matrix With Sorted Rows	Hard	To Do	To Do
1421	NPV Queries 🔒	Easy	To Do	To Do
1441	Build an Array With Stack Operations	Medium	To Do	To Do
1442	Count Triplets That Can Form Two Arrays of Equal XOR	Medium	To Do	To Do
1443	Minimum Time to Collect All Apples in a Tree	Medium	To Do	To Do
1444	Number of Ways of Cutting a Pizza	Hard	To Do	To Do
1460	Make Two Arrays Equal by Reversing Subarrays	Easy	To Do	To Do
1461	Check If a String Contains All Binary Codes of Size K	Medium	To Do	To Do
1462	Course Schedule IV	Medium	To Do	To Do
1463	Cherry Pickup II	Hard	To Do	To Do
1450	Number of Students Doing Homework at a Given Time	Easy	To Do	To Do
1451	Rearrange Words in a Sentence	Medium	To Do	To Do
1452	People Whose List of Favorite Companies Is Not a Subset of Another List	Medium	To Do	To Do
1453	Maximum Number of Darts Inside of a Circular Dartboard	Hard	To Do	To Do
1435	Create a Session Bar Chart 🔒	Easy	To Do	To Do
1440	Evaluate Boolean Expression 🔒	Medium	To Do	To Do
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Easy	To Do	To Do
1456	Maximum Number of Vowels in a Substring of Given Length	Medium	To Do	To Do
1457	Pseudo-Palindromic Paths in a Binary Tree	Medium	To Do	To Do
1458	Max Dot Product of Two Subsequences	Hard	To Do	To Do
1475	Final Prices With a Special Discount in a Shop	Easy	To Do	To Do
1478	Allocate Mailboxes	Hard	To Do	To Do
1476	Subrectangle Queries	Medium	To Do	To Do
1477	Find Two Non-overlapping Sub-arrays Each With Target Sum	Medium	To Do	To Do
1464	Maximum Product of Two Elements in an Array	Easy	To Do	To Do
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	Medium	To Do	To Do
1466	Reorder Routes to Make All Paths Lead to the City Zero	Medium	To Do	To Do
1467	Probability of a Two Boxes Having The Same Number of Distinct Balls	Hard	To Do	To Do
1445	Apples & Oranges 🔒	Medium	To Do	To Do
1454	Active Users 🔒	Medium	To Do	To Do
1470	Shuffle the Array	Easy	To Do	To Do
1471	The k Strongest Values in an Array	Medium	To Do	To Do
1472	Design Browser History	Medium	To Do	To Do
1473	Paint House III	Hard	To Do	To Do
1491	Average Salary Excluding the Minimum and Maximum Salary	Easy	To Do	To Do
1492	The kth Factor of n	Medium	To Do	To Do
1493	Longest Subarray of 1's After Deleting One Element	Medium	To Do	To Do
1494	Parallel Courses II	Hard	To Do	To Do
1480	Running Sum of 1d Array	Easy	To Do	To Do
1481	Least Number of Unique Integers after K Removals	Medium	To Do	To Do
1482	Minimum Number of Days to Make m Bouquets	Medium	To Do	To Do
1459	Rectangles Area 🔒	Medium	To Do	To Do
1468	Calculate Salaries 🔒	Medium	To Do	To Do
1469	Find All The Lonely Nodes 🔒	Easy	To Do	To Do
1486	XOR Operation in an Array	Easy	To Do	To Do
1487	Making File Names Unique	Medium	To Do	To Do
1488	Avoid Flood in The City	Medium	To Do	To Do
1489	Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree	Hard	To Do	To Do
1508	Range Sum of Sorted Subarray Sums	Medium	To Do	To Do
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	Medium	To Do	To Do
1510	Stone Game IV	Hard	To Do	To Do
1474	Delete N Nodes After M Nodes of a Linked List 🔒	Easy	To Do	To Do
1496	Path Crossing	Easy	To Do	To Do
1497	Check If Array Pairs Are Divisible by k	Medium	To Do	To Do
1498	Number of Subsequences That Satisfy the Given Sum Condition	Medium	To Do	To Do
1499	Max Value of Equation	Hard	To Do	To Do
1479	Sales by Day of the Week 🔒	Hard	To Do	To Do
1485	Clone Binary Tree With Random Pointer 🔒	Medium	To Do	To Do
1484	Group Sold Products By The Date	Easy	To Do	To Do
1502	Can Make Arithmetic Progression From Sequence	Easy	To Do	To Do
1503	Last Moment Before All Ants Fall Out of a Plank	Medium	To Do	To Do
1504	Count Submatrices With All Ones	Medium	To Do	To Do
1505	Minimum Possible Integer After at Most K Adjacent Swaps On Digits	Hard	To Do	To Do
1523	Count Odd Numbers in an Interval Range	Easy	To Do	To Do
1524	Number of Sub-arrays With Odd Sum	Medium	To Do	To Do
1525	Number of Good Ways to Split a String	Medium	To Do	To Do
1526	Minimum Number of Increments on Subarrays to Form a Target Array	Hard	To Do	To Do
1490	Clone N-ary Tree 🔒	Medium	To Do	To Do
1512	Number of Good Pairs	Easy	To Do	To Do
1513	Number of Substrings With Only 1s	Medium	To Do	To Do
1531	String Compression II	Hard	To Do	To Do
1515	Best Position for a Service Centre	Hard	To Do	To Do
1495	Friendly Movies Streamed Last Month 🔒	Easy	To Do	To Do
1500	Design a File Sharing System 🔒	Medium	To Do	To Do
1501	Countries You Can Safely Invest In 🔒	Medium	To Do	To Do
1518	Water Bottles	Easy	To Do	To Do
1519	Number of Nodes in the Sub-Tree With the Same Label	Medium	To Do	To Do
1520	Maximum Number of Non-Overlapping Substrings	Hard	To Do	To Do
1521	Find a Value of a Mysterious Function Closest to Target	Hard	To Do	To Do
1539	Kth Missing Positive Number	Easy	To Do	To Do
1540	Can Convert String in K Moves	Medium	To Do	To Do
1541	Minimum Insertions to Balance a Parentheses String	Medium	To Do	To Do
1546	Maximum Number of Non-Overlapping Subarrays With Sum Equals Target	Medium	To Do	To Do
1506	Find Root of N-Ary Tree 🔒	Medium	To Do	To Do
1528	Shuffle String	Easy	To Do	To Do
1529	Minimum Suffix Flips	Medium	To Do	To Do
1530	Number of Good Leaf Nodes Pairs	Medium	To Do	To Do
1511	Customer Order Frequency 🔒	Easy	To Do	To Do
1516	Move Sub-Tree of N-Ary Tree 🔒	Hard	To Do	To Do
1534	Count Good Triplets	Easy	To Do	To Do
1535	Find the Winner of an Array Game	Medium	To Do	To Do
1536	Minimum Swaps to Arrange a Binary Grid	Medium	To Do	To Do
1537	Get the Maximum Score	Hard	To Do	To Do
1556	Thousand Separator	Easy	To Do	To Do
1557	Minimum Number of Vertices to Reach All Nodes	Medium	To Do	To Do
1558	Minimum Numbers of Function Calls to Make Target Array	Medium	To Do	To Do
1559	Detect Cycles in 2D Grid	Medium	To Do	To Do
1517	Find Users With Valid E-Mails	Easy	To Do	To Do
1522	Diameter of N-Ary Tree 🔒	Medium	To Do	To Do
1544	Make The String Great	Easy	To Do	To Do
1545	Find Kth Bit in Nth Binary String	Medium	To Do	To Do
1542	Find Longest Awesome Substring	Hard	To Do	To Do
1547	Minimum Cost to Cut a Stick	Hard	To Do	To Do
1527	Patients With a Condition	Easy	To Do	To Do
1532	The Most Recent Three Orders 🔒	Medium	To Do	To Do
1533	Find the Index of the Large Integer 🔒	Medium	To Do	To Do
1551	Minimum Operations to Make Array Equal	Medium	To Do	To Do
1552	Magnetic Force Between Two Balls	Medium	To Do	To Do
1553	Minimum Number of Days to Eat N Oranges	Hard	To Do	To Do
1572	Matrix Diagonal Sum	Easy	To Do	To Do
1573	Number of Ways to Split a String	Medium	To Do	To Do
1574	Shortest Subarray to be Removed to Make Array Sorted	Medium	To Do	To Do
1575	Count All Possible Routes	Hard	To Do	To Do
1538	Guess the Majority in a Hidden Array 🔒	Medium	To Do	To Do
1560	Most Visited Sector in a Circular Track	Easy	To Do	To Do
1561	Maximum Number of Coins You Can Get	Medium	To Do	To Do
1562	Find Latest Group of Size M	Medium	To Do	To Do
1563	Stone Game V	Hard	To Do	To Do
1543	Fix Product Name Format 🔒	Easy	To Do	To Do
1548	The Most Similar Path in a Graph 🔒	Hard	To Do	To Do
1549	The Most Recent Orders for Each Product 🔒	Medium	To Do	To Do
1566	Detect Pattern of Length M Repeated K or More Times	Easy	To Do	To Do
1567	Maximum Length of Subarray With Positive Product	Medium	To Do	To Do
1568	Minimum Number of Days to Disconnect Island	Hard	To Do	To Do
1569	Number of Ways to Reorder Array to Get Same BST	Hard	To Do	To Do
1588	Sum of All Odd Length Subarrays	Easy	To Do	To Do
1590	Make Sum Divisible by P	Medium	To Do	To Do
1589	Maximum Sum Obtained of Any Permutation	Medium	To Do	To Do
1591	Strange Printer II	Hard	To Do	To Do
1554	Strings Differ by One Character 🔒	Medium	To Do	To Do
1576	Replace All ?'s to Avoid Consecutive Repeating Characters	Easy	To Do	To Do
1577	Number of Ways Where Square of Number Is Equal to Product of Two Numbers	Medium	To Do	To Do
1578	Minimum Time to Make Rope Colorful	Medium	To Do	To Do
1579	Remove Max Number of Edges to Keep Graph Fully Traversable	Hard	To Do	To Do
1555	Bank Account Summary 🔒	Medium	To Do	To Do
1564	Put Boxes Into the Warehouse I 🔒	Medium	To Do	To Do
1582	Special Positions in a Binary Matrix	Easy	To Do	To Do
1583	Count Unhappy Friends	Medium	To Do	To Do
1584	Min Cost to Connect All Points	Medium	To Do	To Do
1585	Check If String Is Transformable With Substring Sort Operations	Hard	To Do	To Do
1603	Design Parking System	Easy	To Do	To Do
1604	Alert Using Same Key-Card Three or More Times in a One Hour Period	Medium	To Do	To Do
1606	Find Servers That Handled Most Number of Requests	Hard	To Do	To Do
1605	Find Valid Matrix Given Row and Column Sums	Medium	To Do	To Do
1565	Unique Orders and Customers Per Month 🔒	Easy	To Do	To Do
1570	Dot Product of Two Sparse Vectors 🔒	Medium	To Do	To Do
1592	Rearrange Spaces Between Words	Easy	To Do	To Do
1593	Split a String Into the Max Number of Unique Substrings	Medium	To Do	To Do
1594	Maximum Non Negative Product in a Matrix	Medium	To Do	To Do
1595	Minimum Cost to Connect Two Groups of Points	Hard	To Do	To Do
1571	Warehouse Manager 🔒	Easy	To Do	To Do
1580	Put Boxes Into the Warehouse II 🔒	Medium	To Do	To Do
1598	Crawler Log Folder	Easy	To Do	To Do
1599	Maximum Profit of Operating a Centennial Wheel	Medium	To Do	To Do
1600	Throne Inheritance	Medium	To Do	To Do
1601	Maximum Number of Achievable Transfer Requests	Hard	To Do	To Do
1581	Customer Who Visited but Did Not Make Any Transactions	Easy	To Do	To Do
1621	Number of Sets of K Non-Overlapping Line Segments	Medium	To Do	To Do
1620	Coordinate With Maximum Network Quality	Medium	To Do	To Do
1728	Cat and Mouse II	Hard	To Do	To Do
1622	Fancy Sequence	Hard	To Do	To Do
1586	Binary Search Tree Iterator II 🔒	Medium	To Do	To Do
1608	Special Array With X Elements Greater Than or Equal X	Easy	To Do	To Do
1609	Even Odd Tree	Medium	To Do	To Do
1611	Minimum One Bit Operations to Make Integers Zero	Hard	To Do	To Do
1610	Maximum Number of Visible Points	Hard	To Do	To Do
1587	Bank Account Summary II	Easy	To Do	To Do
1596	The Most Frequently Ordered Products for Each Customer 🔒	Medium	To Do	To Do
1597	Build Binary Expression Tree From Infix Expression 🔒	Hard	To Do	To Do
1614	Maximum Nesting Depth of the Parentheses	Easy	To Do	To Do
1615	Maximal Network Rank	Medium	To Do	To Do
1616	Split Two Strings to Make Palindrome	Medium	To Do	To Do
1617	Count Subtrees With Max Distance Between Cities	Hard	To Do	To Do
1636	Sort Array by Increasing Frequency	Easy	To Do	To Do
1637	Widest Vertical Area Between Two Points Containing No Points	Medium	To Do	To Do
1638	Count Substrings That Differ by One Character	Medium	To Do	To Do
1639	Number of Ways to Form a Target String Given a Dictionary	Hard	To Do	To Do
1602	Find Nearest Right Node in Binary Tree 🔒	Medium	To Do	To Do
1624	Largest Substring Between Two Equal Characters	Easy	To Do	To Do
1625	Lexicographically Smallest String After Applying Operations	Medium	To Do	To Do
1626	Best Team With No Conflicts	Medium	To Do	To Do
1607	Sellers With No Sales 🔒	Easy	To Do	To Do
1612	Check If Two Expression Trees are Equivalent 🔒	Medium	To Do	To Do
1629	Slowest Key	Easy	To Do	To Do
1630	Arithmetic Subarrays	Medium	To Do	To Do
1631	Path With Minimum Effort	Medium	To Do	To Do
1652	Defuse the Bomb	Easy	To Do	To Do
1653	Minimum Deletions to Make String Balanced	Medium	To Do	To Do
1654	Minimum Jumps to Reach Home	Medium	To Do	To Do
1655	Distribute Repeating Integers	Hard	To Do	To Do
1613	Find the Missing IDs 🔒	Medium	To Do	To Do
1640	Check Array Formation Through Concatenation	Easy	To Do	To Do
1641	Count Sorted Vowel Strings	Medium	To Do	To Do
1642	Furthest Building You Can Reach	Medium	To Do	To Do
1623	All Valid Triplets That Can Represent a Country 🔒	Easy	To Do	To Do
1668	Maximum Repeating Substring	Easy	To Do	To Do
1669	Merge In Between Linked Lists	Medium	To Do	To Do
1671	Minimum Number of Removals to Make Mountain Array	Hard	To Do	To Do
1670	Design Front Middle Back Queue	Medium	To Do	To Do
1628	Design an Expression Tree With Evaluate Function 🔒	Medium	To Do	To Do
1646	Get Maximum in Generated Array	Easy	To Do	To Do
1647	Minimum Deletions to Make Character Frequencies Unique	Medium	To Do	To Do
1648	Sell Diminishing-Valued Colored Balls	Medium	To Do	To Do
1649	Create Sorted Array through Instructions	Hard	To Do	To Do
1633	Percentage of Users Attended a Contest	Easy	To Do	To Do
1634	Add Two Polynomials Represented as Linked Lists 🔒	Medium	To Do	To Do
1656	Design an Ordered Stream	Easy	To Do	To Do
1658	Minimum Operations to Reduce X to Zero	Medium	To Do	To Do
1657	Determine if Two Strings Are Close	Medium	To Do	To Do
1659	Maximize Grid Happiness	Hard	To Do	To Do
1635	Hopper Company Queries I 🔒	Hard	To Do	To Do
1644	Lowest Common Ancestor of a Binary Tree II 🔒	Medium	To Do	To Do
1662	Check If Two String Arrays are Equivalent	Easy	To Do	To Do
1663	Smallest String With A Given Numeric Value	Medium	To Do	To Do
1664	Ways to Make a Fair Array	Medium	To Do	To Do
1665	Minimum Initial Energy to Finish Tasks	Hard	To Do	To Do
1645	Hopper Company Queries II 🔒	Hard	To Do	To Do
1684	Count the Number of Consistent Strings	Easy	To Do	To Do
1685	Sum of Absolute Differences in a Sorted Array	Medium	To Do	To Do
1686	Stone Game VI	Medium	To Do	To Do
1687	Delivering Boxes from Storage to Ports	Hard	To Do	To Do
1650	Lowest Common Ancestor of a Binary Tree III 🔒	Medium	To Do	To Do
1672	Richest Customer Wealth	Easy	To Do	To Do
1673	Find the Most Competitive Subsequence	Medium	To Do	To Do
1674	Minimum Moves to Make Array Complementary	Medium	To Do	To Do
1675	Minimize Deviation in Array	Hard	To Do	To Do
1651	Hopper Company Queries III 🔒	Hard	To Do	To Do
1660	Correct a Binary Tree 🔒	Medium	To Do	To Do
1678	Goal Parser Interpretation	Easy	To Do	To Do
1679	Max Number of K-Sum Pairs	Medium	To Do	To Do
1681	Minimum Incompatibility	Hard	To Do	To Do
1680	Concatenation of Consecutive Binary Numbers	Medium	To Do	To Do
1661	Average Time of Process per Machine	Easy	To Do	To Do
1700	Number of Students Unable to Eat Lunch	Easy	To Do	To Do
1701	Average Waiting Time	Medium	To Do	To Do
1702	Maximum Binary String After Change	Medium	To Do	To Do
1703	Minimum Adjacent Swaps for K Consecutive Ones	Hard	To Do	To Do
1688	Count of Matches in Tournament	Easy	To Do	To Do
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	Medium	To Do	To Do
1690	Stone Game VII	Medium	To Do	To Do
1714	Sum Of Special Evenly-Spaced Elements In Array 🔒	Hard	To Do	To Do
1666	Change the Root of a Binary Tree 🔒	Medium	To Do	To Do
1667	Fix Names in a Table	Easy	To Do	To Do
1694	Reformat Phone Number	Easy	To Do	To Do
1695	Maximum Erasure Value	Medium	To Do	To Do
1696	Jump Game VI	Medium	To Do	To Do
1697	Checking Existence of Edge Length Limited Paths	Hard	To Do	To Do
1676	Lowest Common Ancestor of a Binary Tree IV 🔒	Medium	To Do	To Do
1716	Calculate Money in Leetcode Bank	Easy	To Do	To Do
1717	Maximum Score From Removing Substrings	Medium	To Do	To Do
1718	Construct the Lexicographically Largest Valid Sequence	Medium	To Do	To Do
1719	Number Of Ways To Reconstruct A Tree	Hard	To Do	To Do
1677	Product's Worth Over Invoices 🔒	Easy	To Do	To Do
1682	Longest Palindromic Subsequence II 🔒	Medium	To Do	To Do
1704	Determine if String Halves Are Alike	Easy	To Do	To Do
1705	Maximum Number of Eaten Apples	Medium	To Do	To Do
1723	Find Minimum Time to Finish All Jobs	Hard	To Do	To Do
1707	Maximum XOR With an Element From Array	Hard	To Do	To Do
1683	Invalid Tweets	Easy	To Do	To Do
1692	Count Ways to Distribute Candies 🔒	Hard	To Do	To Do
1710	Maximum Units on a Truck	Easy	To Do	To Do
1711	Count Good Meals	Medium	To Do	To Do
1712	Ways to Split Array Into Three Subarrays	Medium	To Do	To Do
1713	Minimum Operations to Make a Subsequence	Hard	To Do	To Do
1732	Find the Highest Altitude	Easy	To Do	To Do
1733	Minimum Number of People to Teach	Medium	To Do	To Do
1734	Decode XORed Permutation	Medium	To Do	To Do
1735	Count Ways to Make Array With Product	Hard	To Do	To Do
1693	Daily Leads and Partners	Easy	To Do	To Do
1698	Number of Distinct Substrings in a String 🔒	Medium	To Do	To Do
1720	Decode XORed Array	Easy	To Do	To Do
1722	Minimize Hamming Distance After Swap Operations	Medium	To Do	To Do
1699	Number of Calls Between Two Persons 🔒	Medium	To Do	To Do
1725	Number Of Rectangles That Can Form The Largest Square	Easy	To Do	To Do
1742	Maximum Number of Balls in a Box	Easy	To Do	To Do
1727	Largest Submatrix With Rearrangements	Medium	To Do	To Do
1708	Largest Subarray Length K 🔒	Easy	To Do	To Do
1748	Sum of Unique Elements	Easy	To Do	To Do
1749	Maximum Absolute Sum of Any Subarray	Medium	To Do	To Do
1750	Minimum Length of String After Deleting Similar Ends	Medium	To Do	To Do
1751	Maximum Number of Events That Can Be Attended II	Hard	To Do	To Do
1709	Biggest Window Between Visits 🔒	Medium	To Do	To Do
1736	Latest Time by Replacing Hidden Digits	Easy	To Do	To Do
1737	Change Minimum Characters to Satisfy One of Three Conditions	Medium	To Do	To Do
1738	Find Kth Largest XOR Coordinate Value	Medium	To Do	To Do
1739	Building Boxes	Hard	To Do	To Do
1715	Count Apples and Oranges 🔒	Medium	To Do	To Do
1724	Checking Existence of Edge Length Limited Paths II 🔒	Hard	To Do	To Do
1743	Restore the Array From Adjacent Pairs	Medium	To Do	To Do
1745	Palindrome Partitioning IV	Hard	To Do	To Do
1744	Can You Eat Your Favorite Candy on Your Favorite Day?	Medium	To Do	To Do
1763	Longest Nice Substring	Easy	To Do	To Do
1764	Form Array by Concatenating Subarrays of Another Array	Medium	To Do	To Do
1766	Tree of Coprimes	Hard	To Do	To Do
1765	Map of Highest Peak	Medium	To Do	To Do
1729	Find Followers Count	Easy	To Do	To Do
1752	Check if Array Is Sorted and Rotated	Easy	To Do	To Do
1753	Maximum Score From Removing Stones	Medium	To Do	To Do
1754	Largest Merge Of Two Strings	Medium	To Do	To Do
1755	Closest Subsequence Sum	Hard	To Do	To Do
1731	The Number of Employees Which Report to Each Employee	Easy	To Do	To Do
1740	Find Distance in a Binary Tree 🔒	Medium	To Do	To Do
1758	Minimum Changes To Make Alternating Binary String	Easy	To Do	To Do
1759	Count Number of Homogenous Substrings	Medium	To Do	To Do
1760	Minimum Limit of Balls in a Bag	Medium	To Do	To Do
1761	Minimum Degree of a Connected Trio in a Graph	Hard	To Do	To Do
1779	Find Nearest Point That Has the Same X or Y Coordinate	Easy	To Do	To Do
1780	Check if Number is a Sum of Powers of Three	Medium	To Do	To Do
1781	Sum of Beauty of All Substrings	Medium	To Do	To Do
1782	Count Pairs Of Nodes	Hard	To Do	To Do
1741	Find Total Time Spent by Each Employee	Easy	To Do	To Do
1746	Maximum Subarray Sum After One Operation 🔒	Medium	To Do	To Do
1768	Merge Strings Alternately	Easy	To Do	To Do
1769	Minimum Number of Operations to Move All Balls to Each Box	Medium	To Do	To Do
1770	Maximum Score from Performing Multiplication Operations	Hard	To Do	To Do
1771	Maximize Palindrome Length From Subsequences	Hard	To Do	To Do
1747	Leetflex Banned Accounts 🔒	Medium	To Do	To Do
1773	Count Items Matching a Rule	Easy	To Do	To Do
1774	Closest Dessert Cost	Medium	To Do	To Do
1775	Equal Sum Arrays With Minimum Number of Operations	Medium	To Do	To Do
1776	Car Fleet II	Hard	To Do	To Do
1756	Design Most Recently Used Queue 🔒	Medium	To Do	To Do
1796	Second Largest Digit in a String	Easy	To Do	To Do
1797	Design Authentication Manager	Medium	To Do	To Do
1799	Maximize Score After N Operations	Hard	To Do	To Do
1803	Count Pairs With XOR in a Range	Hard	To Do	To Do
1757	Recyclable and Low Fat Products	Easy	To Do	To Do
1762	Buildings With an Ocean View 🔒	Medium	To Do	To Do
1784	Check if Binary String Has at Most One Segment of Ones	Easy	To Do	To Do
1785	Minimum Elements to Add to Form a Given Sum	Medium	To Do	To Do
1786	Number of Restricted Paths From First to Last Node	Medium	To Do	To Do
1787	Make the XOR of All Segments Equal to Zero	Hard	To Do	To Do
1767	Find the Subtasks That Did Not Execute 🔒	Hard	To Do	To Do
1790	Check if One String Swap Can Make Strings Equal	Easy	To Do	To Do
1791	Find Center of Star Graph	Easy	To Do	To Do
1792	Maximum Average Pass Ratio	Medium	To Do	To Do
1793	Maximum Score of a Good Subarray	Hard	To Do	To Do
1772	Sort Features by Popularity 🔒	Medium	To Do	To Do
1812	Determine Color of a Chessboard Square	Easy	To Do	To Do
1813	Sentence Similarity III	Medium	To Do	To Do
1815	Maximum Number of Groups Getting Fresh Donuts	Hard	To Do	To Do
1814	Count Nice Pairs in an Array	Medium	To Do	To Do
1777	Product's Price for Each Store 🔒	Easy	To Do	To Do
1800	Maximum Ascending Subarray Sum	Easy	To Do	To Do
1801	Number of Orders in the Backlog	Medium	To Do	To Do
1802	Maximum Value at a Given Index in a Bounded Array	Medium	To Do	To Do
1798	Maximum Number of Consecutive Values You Can Make	Medium	To Do	To Do
1778	Shortest Path in a Hidden Grid 🔒	Medium	To Do	To Do
1783	Grand Slam Titles 🔒	Medium	To Do	To Do
1805	Number of Different Integers in a String	Easy	To Do	To Do
1807	Evaluate the Bracket Pairs of a String	Medium	To Do	To Do
1806	Minimum Number of Operations to Reinitialize a Permutation	Medium	To Do	To Do
1808	Maximize Number of Nice Divisors	Hard	To Do	To Do
1788	Maximize the Beauty of the Garden 🔒	Hard	To Do	To Do
1827	Minimum Operations to Make the Array Increasing	Easy	To Do	To Do
1828	Queries on Number of Points Inside a Circle	Medium	To Do	To Do
1829	Maximum XOR for Each Query	Medium	To Do	To Do
1830	Minimum Number of Operations to Make String Sorted	Hard	To Do	To Do
1789	Primary Department for Each Employee	Easy	To Do	To Do
1794	Count Pairs of Equal Substrings With Minimum Difference 🔒	Medium	To Do	To Do
1816	Truncate Sentence	Easy	To Do	To Do
1817	Finding the Users Active Minutes	Medium	To Do	To Do
1818	Minimum Absolute Sum Difference	Medium	To Do	To Do
1819	Number of Different Subsequences GCDs	Hard	To Do	To Do
1795	Rearrange Products Table	Easy	To Do	To Do
1804	Implement Trie II (Prefix Tree) 🔒	Medium	To Do	To Do
1822	Sign of the Product of an Array	Easy	To Do	To Do
1823	Find the Winner of the Circular Game	Medium	To Do	To Do
1824	Minimum Sideway Jumps	Medium	To Do	To Do
1825	Finding MK Average	Hard	To Do	To Do
1844	Replace All Digits with Characters	Easy	To Do	To Do
1845	Seat Reservation Manager	Medium	To Do	To Do
1846	Maximum Element After Decreasing and Rearranging	Medium	To Do	To Do
1847	Closest Room	Hard	To Do	To Do
1809	Ad-Free Sessions 🔒	Easy	To Do	To Do
1810	Minimum Path Cost in a Hidden Grid 🔒	Medium	To Do	To Do
1832	Check if the Sentence Is Pangram	Easy	To Do	To Do
1833	Maximum Ice Cream Bars	Medium	To Do	To Do
1834	Single-Threaded CPU	Medium	To Do	To Do
1835	Find XOR Sum of All Pairs Bitwise AND	Hard	To Do	To Do
1811	Find Interview Candidates 🔒	Medium	To Do	To Do
1837	Sum of Digits in Base K	Easy	To Do	To Do
1838	Frequency of the Most Frequent Element	Medium	To Do	To Do
1839	Longest Substring Of All Vowels in Order	Medium	To Do	To Do
1840	Maximum Building Height	Hard	To Do	To Do
1820	Maximum Number of Accepted Invitations 🔒	Medium	To Do	To Do
1859	Sorting the Sentence	Easy	To Do	To Do
1860	Incremental Memory Leak	Medium	To Do	To Do
1861	Rotating the Box	Medium	To Do	To Do
1821	Find Customers With Positive Revenue this Year 🔒	Easy	To Do	To Do
1848	Minimum Distance to the Target Element	Easy	To Do	To Do
1849	Splitting a String Into Descending Consecutive Values	Medium	To Do	To Do
1851	Minimum Interval to Include Each Query	Hard	To Do	To Do
1850	Minimum Adjacent Swaps to Reach the Kth Smallest Number	Medium	To Do	To Do
1989	Maximum Number of People That Can Be Caught in Tag 🔒	Medium	To Do	To Do
1826	Faulty Sensor 🔒	Easy	To Do	To Do
1831	Maximum Transaction Each Day 🔒	Medium	To Do	To Do
1836	Remove Duplicates From an Unsorted Linked List 🔒	Medium	To Do	To Do
1854	Maximum Population Year	Easy	To Do	To Do
1855	Maximum Distance Between a Pair of Values	Medium	To Do	To Do
1856	Maximum Subarray Min-Product	Medium	To Do	To Do
1857	Largest Color Value in a Directed Graph	Hard	To Do	To Do
1876	Substrings of Size Three with Distinct Characters	Easy	To Do	To Do
1877	Minimize Maximum Pair Sum in Array	Medium	To Do	To Do
1879	Minimum XOR Sum of Two Arrays	Hard	To Do	To Do
1878	Get Biggest Three Rhombus Sums in a Grid	Medium	To Do	To Do
1841	League Statistics 🔒	Medium	To Do	To Do
2046	Sort Linked List Already Sorted Using Absolute Values 🔒	Medium	To Do	To Do
1863	Sum of All Subset XOR Totals	Easy	To Do	To Do
1864	Minimum Number of Swaps to Make the Binary String Alternating	Medium	To Do	To Do
1865	Finding Pairs With a Certain Sum	Medium	To Do	To Do
1866	Number of Ways to Rearrange Sticks With K Sticks Visible	Hard	To Do	To Do
1842	Next Palindrome Using Same Digits 🔒	Hard	To Do	To Do
1843	Suspicious Bank Accounts 🔒	Medium	To Do	To Do
1869	Longer Contiguous Segments of Ones than Zeros	Easy	To Do	To Do
1870	Minimum Speed to Arrive on Time	Medium	To Do	To Do
1871	Jump Game VII	Medium	To Do	To Do
1872	Stone Game VIII	Hard	To Do	To Do
1852	Distinct Numbers in Each Subarray 🔒	Medium	To Do	To Do
1853	Convert Date Format 🔒	Easy	To Do	To Do
1893	Check if All the Integers in a Range Are Covered	Easy	To Do	To Do
1894	Find the Student that Will Replace the Chalk	Medium	To Do	To Do
2247	Maximum Cost of Trip With K Highways 🔒	Hard	To Do	To Do
1896	Minimum Cost to Change the Final Value of Expression	Hard	To Do	To Do
1858	Longest Word With All Prefixes 🔒	Medium	To Do	To Do
1880	Check if Word Equals Summation of Two Words	Easy	To Do	To Do
1881	Maximum Value after Insertion	Medium	To Do	To Do
1882	Process Tasks Using Servers	Medium	To Do	To Do
1883	Minimum Skips to Arrive at Meeting On Time	Hard	To Do	To Do
1867	Orders With Maximum Quantity Above Average 🔒	Medium	To Do	To Do
1886	Determine Whether Matrix Can Be Obtained By Rotation	Easy	To Do	To Do
1887	Reduction Operations to Make the Array Elements Equal	Medium	To Do	To Do
1888	Minimum Number of Flips to Make the Binary String Alternating	Medium	To Do	To Do
1889	Minimum Space Wasted From Packaging	Hard	To Do	To Do
1868	Product of Two Run-Length Encoded Arrays 🔒	Medium	To Do	To Do
1909	Remove One Element to Make the Array Strictly Increasing	Easy	To Do	To Do
1910	Remove All Occurrences of a Substring	Medium	To Do	To Do
1911	Maximum Alternating Subsequence Sum	Medium	To Do	To Do
1912	Design Movie Rental System	Hard	To Do	To Do
1873	Calculate Special Bonus	Easy	To Do	To Do
1897	Redistribute Characters to Make All Strings Equal	Easy	To Do	To Do
1899	Merge Triplets to Form Target Triplet	Medium	To Do	To Do
1898	Maximum Number of Removable Characters	Medium	To Do	To Do
1900	The Earliest and Latest Rounds Where Players Compete	Hard	To Do	To Do
1874	Minimize Product Sum of Two Arrays 🔒	Medium	To Do	To Do
1875	Group Employees of the Same Salary 🔒	Medium	To Do	To Do
1884	Egg Drop With 2 Eggs and N Floors	Medium	To Do	To Do
1903	Largest Odd Number in String	Easy	To Do	To Do
1904	The Number of Full Rounds You Have Played	Medium	To Do	To Do
1906	Minimum Absolute Difference Queries	Medium	To Do	To Do
1905	Count Sub Islands	Medium	To Do	To Do
1885	Count Pairs in Two Arrays 🔒	Medium	To Do	To Do
1925	Count Square Sum Triples	Easy	To Do	To Do
1926	Nearest Exit from Entrance in Maze	Medium	To Do	To Do
1927	Sum Game	Medium	To Do	To Do
1928	Minimum Cost to Reach Destination in Time	Hard	To Do	To Do
1890	The Latest Login in 2020	Easy	To Do	To Do
1913	Maximum Product Difference Between Two Pairs	Easy	To Do	To Do
1914	Cyclically Rotating a Grid	Medium	To Do	To Do
1915	Number of Wonderful Substrings	Medium	To Do	To Do
1891	Cutting Ribbons 🔒	Medium	To Do	To Do
1892	Page Recommendations II 🔒	Hard	To Do	To Do
1901	Find a Peak Element II	Medium	To Do	To Do
1920	Build Array from Permutation	Easy	To Do	To Do
1921	Eliminate Maximum Number of Monsters	Medium	To Do	To Do
1922	Count Good Numbers	Medium	To Do	To Do
1923	Longest Common Subpath	Hard	To Do	To Do
1902	Depth of BST Given Insertion Order 🔒	Medium	To Do	To Do
1941	Check if All Characters Have Equal Number of Occurrences	Easy	To Do	To Do
1942	The Number of the Smallest Unoccupied Chair	Medium	To Do	To Do
1943	Describe the Painting	Medium	To Do	To Do
2297	Jump Game VIII 🔒	Medium	To Do	To Do
1907	Count Salary Categories	Medium	To Do	To Do
1929	Concatenation of Array	Easy	To Do	To Do
1930	Unique Length-3 Palindromic Subsequences	Medium	To Do	To Do
1932	Merge BSTs to Create Single BST	Hard	To Do	To Do
1931	Painting a Grid With Three Different Colors	Hard	To Do	To Do
1908	Game of Nim 🔒	Medium	To Do	To Do
1917	Leetcodify Friends Recommendations 🔒	Hard	To Do	To Do
1919	Leetcodify Similar Friends 🔒	Hard	To Do	To Do
2307	Check for Contradictions in Equations 🔒	Hard	To Do	To Do
1936	Add Minimum Number of Rungs	Medium	To Do	To Do
1937	Maximum Number of Points with Cost	Medium	To Do	To Do
1938	Maximum Genetic Difference Query	Hard	To Do	To Do
1918	Kth Smallest Subarray Sum 🔒	Medium	To Do	To Do
1933	Check if String Is Decomposable Into Value-Equal Substrings 🔒	Easy	To Do	To Do
1940	Longest Common Subsequence Between Sorted Arrays 🔒	Medium	To Do	To Do
1950	Maximum of Minimum Values in All Subarrays 🔒	Medium	To Do	To Do
1956	Minimum Time For K Virus Variants to Spread 🔒	Hard	To Do	To Do
1924	Erect the Fence II 🔒	Hard	To Do	To Do
2021	Brightest Position on Street 🔒	Medium	To Do	To Do
1945	Sum of Digits of String After Convert	Easy	To Do	To Do
1946	Largest Number After Mutating Substring	Medium	To Do	To Do
1947	Maximum Compatibility Score Sum	Medium	To Do	To Do
1948	Delete Duplicate Folders in System	Hard	To Do	To Do
1958	Check if Move is Legal	Medium	To Do	To Do
1959	Minimum Total Space Wasted With K Resizing Operations	Medium	To Do	To Do
2052	Minimum Cost to Separate Sentence Into Rows 🔒	Medium	To Do	To Do
1952	Three Divisors	Easy	To Do	To Do
1953	Maximum Number of Weeks for Which You Can Work	Medium	To Do	To Do
1968	Array With Elements Not Equal to Average of Neighbors	Medium	To Do	To Do
1955	Count Number of Special Subsequences	Hard	To Do	To Do
1934	Confirmation Rate	Medium	To Do	To Do
1974	Minimum Time to Type Word Using Special Typewriter	Easy	To Do	To Do
1975	Maximum Matrix Sum	Medium	To Do	To Do
1976	Number of Ways to Arrive at Destination	Medium	To Do	To Do
1977	Number of Ways to Separate Numbers	Hard	To Do	To Do
1939	Users That Actively Request Confirmation Messages 🔒	Easy	To Do	To Do
1961	Check If String Is a Prefix of Array	Easy	To Do	To Do
1962	Remove Stones to Minimize the Total	Medium	To Do	To Do
1963	Minimum Number of Swaps to Make the String Balanced	Medium	To Do	To Do
1964	Find the Longest Valid Obstacle Course at Each Position	Hard	To Do	To Do
1949	Strong Friendship 🔒	Medium	To Do	To Do
1951	All the Pairs With the Maximum Number of Common Followers 🔒	Medium	To Do	To Do
1967	Number of Strings That Appear as Substrings in Word	Easy	To Do	To Do
1969	Minimum Non-Zero Product of the Array Elements	Medium	To Do	To Do
1970	Last Day Where You Can Still Cross	Hard	To Do	To Do
1991	Find the Middle Index in Array	Easy	To Do	To Do
1992	Find All Groups of Farmland	Medium	To Do	To Do
1993	Operations on Tree	Medium	To Do	To Do
1994	The Number of Good Subsets	Hard	To Do	To Do
1979	Find Greatest Common Divisor of Array	Easy	To Do	To Do
1980	Find Unique Binary String	Medium	To Do	To Do
1981	Minimize the Difference Between Target and Chosen Elements	Medium	To Do	To Do
1982	Find Array Given Subset Sums	Hard	To Do	To Do
1965	Employees With Missing Information	Easy	To Do	To Do
1966	Binary Searchable Numbers in an Unsorted Array 🔒	Medium	To Do	To Do
1984	Minimum Difference Between Highest and Lowest of K Scores	Easy	To Do	To Do
1985	Find the Kth Largest Integer in the Array	Medium	To Do	To Do
1986	Minimum Number of Work Sessions to Finish the Tasks	Medium	To Do	To Do
1987	Number of Unique Good Subsequences	Hard	To Do	To Do
2006	Count Number of Pairs With Absolute Difference K	Easy	To Do	To Do
2007	Find Original Array From Doubled Array	Medium	To Do	To Do
2008	Maximum Earnings From Taxi	Medium	To Do	To Do
2009	Minimum Number of Operations to Make Array Continuous	Hard	To Do	To Do
1972	First and Last Call On the Same Day 🔒	Hard	To Do	To Do
1971	Find if Path Exists in Graph	Easy	To Do	To Do
1995	Count Special Quadruplets	Easy	To Do	To Do
1996	The Number of Weak Characters in the Game	Medium	To Do	To Do
1997	First Day Where You Have Been in All the Rooms	Medium	To Do	To Do
1998	GCD Sort of an Array	Hard	To Do	To Do
1973	Count Nodes Equal to Sum of Descendants 🔒	Medium	To Do	To Do
1978	Employees Whose Manager Left the Company	Easy	To Do	To Do
2000	Reverse Prefix of Word	Easy	To Do	To Do
2001	Number of Pairs of Interchangeable Rectangles	Medium	To Do	To Do
2002	Maximum Product of the Length of Two Palindromic Subsequences	Medium	To Do	To Do
2003	Smallest Missing Genetic Value in Each Subtree	Hard	To Do	To Do
2022	Convert 1D Array Into 2D Array	Easy	To Do	To Do
2023	Number of Pairs of Strings With Concatenation Equal to Target	Medium	To Do	To Do
2024	Maximize the Confusion of an Exam	Medium	To Do	To Do
2025	Maximum Number of Ways to Partition an Array	Hard	To Do	To Do
1988	Find Cutoff Score for Each School 🔒	Medium	To Do	To Do
2011	Final Value of Variable After Performing Operations	Easy	To Do	To Do
2012	Sum of Beauty in the Array	Medium	To Do	To Do
2013	Detect Squares	Medium	To Do	To Do
2014	Longest Subsequence Repeated k Times	Hard	To Do	To Do
1999	Smallest Greater Multiple Made of Two Digits 🔒	Medium	To Do	To Do
2015	Average Height of Buildings in Each Segment 🔒	Medium	To Do	To Do
1990	Count the Number of Experiments 🔒	Medium	To Do	To Do
2016	Maximum Difference Between Increasing Elements	Easy	To Do	To Do
2017	Grid Game	Medium	To Do	To Do
2018	Check if Word Can Be Placed In Crossword	Medium	To Do	To Do
2019	The Score of Students Solving Math Expression	Hard	To Do	To Do
2037	Minimum Number of Moves to Seat Everyone	Easy	To Do	To Do
2038	Remove Colored Pieces if Both Neighbors are the Same Color	Medium	To Do	To Do
2040	Kth Smallest Product of Two Sorted Arrays	Hard	To Do	To Do
2039	The Time When the Network Becomes Idle	Medium	To Do	To Do
2004	The Number of Seniors and Juniors to Join the Company 🔒	Hard	To Do	To Do
2005	Subtree Removal Game with Fibonacci Tree 🔒	Hard	To Do	To Do
2027	Minimum Moves to Convert String	Easy	To Do	To Do
2028	Find Missing Observations	Medium	To Do	To Do
2029	Stone Game IX	Medium	To Do	To Do
2030	Smallest K-Length Subsequence With Occurrences of a Letter	Hard	To Do	To Do
2010	The Number of Seniors and Juniors to Join the Company II 🔒	Hard	To Do	To Do
2032	Two Out of Three	Easy	To Do	To Do
2033	Minimum Operations to Make a Uni-Value Grid	Medium	To Do	To Do
2034	Stock Price Fluctuation	Medium	To Do	To Do
2035	Partition Array Into Two Arrays to Minimize Sum Difference	Hard	To Do	To Do
2053	Kth Distinct String in an Array	Easy	To Do	To Do
2054	Two Best Non-Overlapping Events	Medium	To Do	To Do
2055	Plates Between Candles	Medium	To Do	To Do
2056	Number of Valid Move Combinations On Chessboard	Hard	To Do	To Do
2020	Number of Accounts That Did Not Stream 🔒	Medium	To Do	To Do
2042	Check if Numbers Are Ascending in a Sentence	Easy	To Do	To Do
2043	Simple Bank System	Medium	To Do	To Do
2044	Count Number of Maximum Bitwise-OR Subsets	Medium	To Do	To Do
2045	Second Minimum Time to Reach Destination	Hard	To Do	To Do
2026	Low-Quality Problems 🔒	Easy	To Do	To Do
2047	Number of Valid Words in a Sentence	Easy	To Do	To Do
2048	Next Greater Numerically Balanced Number	Medium	To Do	To Do
2049	Count Nodes With the Highest Score	Medium	To Do	To Do
2050	Parallel Courses III	Hard	To Do	To Do
2068	Check Whether Two Strings are Almost Equivalent	Easy	To Do	To Do
2069	Walking Robot Simulation II	Medium	To Do	To Do
2070	Most Beautiful Item for Each Query	Medium	To Do	To Do
2071	Maximum Number of Tasks You Can Assign	Hard	To Do	To Do
2057	Smallest Index With Equal Value	Easy	To Do	To Do
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	Medium	To Do	To Do
2059	Minimum Operations to Convert Number	Medium	To Do	To Do
2060	Check if an Original String Exists Given Two Encoded Strings	Hard	To Do	To Do
2041	Accepted Candidates From the Interviews 🔒	Medium	To Do	To Do
2062	Count Vowel Substrings of a String	Easy	To Do	To Do
2063	Vowels of All Substrings	Medium	To Do	To Do
2064	Minimized Maximum of Products Distributed to Any Store	Medium	To Do	To Do
2065	Maximum Path Quality of a Graph	Hard	To Do	To Do
2085	Count Common Words With One Occurrence	Easy	To Do	To Do
2086	Minimum Number of Food Buckets to Feed the Hamsters	Medium	To Do	To Do
2087	Minimum Cost Homecoming of a Robot in a Grid	Medium	To Do	To Do
2088	Count Fertile Pyramids in a Land	Hard	To Do	To Do
2051	The Category of Each Member in the Store 🔒	Medium	To Do	To Do
2073	Time Needed to Buy Tickets	Easy	To Do	To Do
2074	Reverse Nodes in Even Length Groups	Medium	To Do	To Do
2075	Decode the Slanted Ciphertext	Medium	To Do	To Do
2076	Process Restricted Friend Requests	Hard	To Do	To Do
2078	Two Furthest Houses With Different Colors	Easy	To Do	To Do
2132	Stamping the Grid	Hard	To Do	To Do
2097	Valid Arrangement of Pairs	Hard	To Do	To Do
2081	Sum of k-Mirror Numbers	Hard	To Do	To Do
2061	Number of Spaces Cleaning Robot Cleaned 🔒	Medium	To Do	To Do
2099	Find Subsequence of Length K With the Largest Sum	Easy	To Do	To Do
2100	Find Good Days to Rob the Bank	Medium	To Do	To Do
2101	Detonate the Maximum Bombs	Medium	To Do	To Do
2102	Sequentially Ordinal Rank Tracker	Hard	To Do	To Do
2066	Account Balance 🔒	Medium	To Do	To Do
2067	Number of Equal Count Substrings 🔒	Medium	To Do	To Do
2089	Find Target Indices After Sorting Array	Easy	To Do	To Do
2090	K Radius Subarray Averages	Medium	To Do	To Do
2091	Removing Minimum and Maximum From Array	Medium	To Do	To Do
2092	Find All People With Secret	Hard	To Do	To Do
2072	The Winner University 🔒	Easy	To Do	To Do
2094	Finding 3-Digit Even Numbers	Easy	To Do	To Do
2095	Delete the Middle Node of a Linked List	Medium	To Do	To Do
2096	Step-By-Step Directions From a Binary Tree Node to Another	Medium	To Do	To Do
2077	Paths in Maze That Lead to Same Room 🔒	Medium	To Do	To Do
2114	Maximum Number of Words Found in Sentences	Easy	To Do	To Do
2115	Find All Possible Recipes from Given Supplies	Medium	To Do	To Do
2116	Check if a Parentheses String Can Be Valid	Medium	To Do	To Do
2117	Abbreviating the Product of a Range	Hard	To Do	To Do
2082	The Number of Rich Customers 🔒	Easy	To Do	To Do
2084	Drop Type 1 Orders for Customers With Type 0 Orders 🔒	Medium	To Do	To Do
2083	Substrings That Begin and End With the Same Letter 🔒	Medium	To Do	To Do
2103	Rings and Rods	Easy	To Do	To Do
2104	Sum of Subarray Ranges	Medium	To Do	To Do
2105	Watering Plants II	Medium	To Do	To Do
2106	Maximum Fruits Harvested After at Most K Steps	Hard	To Do	To Do
2093	Minimum Cost to Reach City With Discounts 🔒	Medium	To Do	To Do
2108	Find First Palindromic String in the Array	Easy	To Do	To Do
2109	Adding Spaces to a String	Medium	To Do	To Do
2110	Number of Smooth Descent Periods of a Stock	Medium	To Do	To Do
2111	Minimum Operations to Make the Array K-Increasing	Hard	To Do	To Do
2129	Capitalize the Title	Easy	To Do	To Do
2130	Maximum Twin Sum of a Linked List	Medium	To Do	To Do
2131	Longest Palindrome by Concatenating Two Letter Words	Medium	To Do	To Do
2119	A Number After a Double Reversal	Easy	To Do	To Do
2120	Execution of All Suffix Instructions Staying in a Grid	Medium	To Do	To Do
2121	Intervals Between Identical Elements	Medium	To Do	To Do
2122	Recover the Original Array	Hard	To Do	To Do
2098	Subsequence of Size K With the Largest Even Sum 🔒	Medium	To Do	To Do
2124	Check if All A's Appears Before All B's	Easy	To Do	To Do
2125	Number of Laser Beams in a Bank	Medium	To Do	To Do
2126	Destroying Asteroids	Medium	To Do	To Do
2127	Maximum Employees to Be Invited to a Meeting	Hard	To Do	To Do
2107	Number of Unique Flavors After Sharing K Candies 🔒	Medium	To Do	To Do
2144	Minimum Cost of Buying Candies With Discount	Easy	To Do	To Do
2145	Count the Hidden Sequences	Medium	To Do	To Do
2146	K Highest Ranked Items Within a Price Range	Medium	To Do	To Do
2147	Number of Ways to Divide a Long Corridor	Hard	To Do	To Do
2112	The Airport With the Most Traffic 🔒	Medium	To Do	To Do
2118	Build the Equation 🔒	Hard	To Do	To Do
2133	Check if Every Row and Column Contains All Numbers	Easy	To Do	To Do
2134	Minimum Swaps to Group All 1's Together II	Medium	To Do	To Do
2135	Count Words Obtained After Adding a Letter	Medium	To Do	To Do
2136	Earliest Possible Day of Full Bloom	Hard	To Do	To Do
2113	Elements in Array After Removing and Replacing Elements 🔒	Medium	To Do	To Do
2123	Minimum Operations to Remove Adjacent Ones in Matrix 🔒	Hard	To Do	To Do
2138	Divide a String Into Groups of Size k	Easy	To Do	To Do
2155	All Divisions With the Highest Score of a Binary Array	Medium	To Do	To Do
2140	Solving Questions With Brainpower	Medium	To Do	To Do
2141	Maximum Running Time of N Computers	Hard	To Do	To Do
2160	Minimum Sum of Four Digit Number After Splitting Digits	Easy	To Do	To Do
2161	Partition Array According to Given Pivot	Medium	To Do	To Do
2162	Minimum Cost to Set Cooking Time	Medium	To Do	To Do
2163	Minimum Difference in Sums After Removal of Elements	Hard	To Do	To Do
2128	Remove All Ones With Row and Column Flips 🔒	Medium	To Do	To Do
2148	Count Elements With Strictly Smaller and Greater Elements	Easy	To Do	To Do
2150	Find All Lonely Numbers in the Array	Medium	To Do	To Do
2149	Rearrange Array Elements by Sign	Medium	To Do	To Do
2151	Maximum Good People Based on Statements	Hard	To Do	To Do
2137	Pour Water Between Buckets to Make Water Levels Equal 🔒	Medium	To Do	To Do
2154	Keep Multiplying Found Values by Two	Easy	To Do	To Do
2156	Find Substring With Given Hash Value	Hard	To Do	To Do
2157	Groups of Strings	Hard	To Do	To Do
2176	Count Equal and Divisible Pairs in an Array	Easy	To Do	To Do
2177	Find Three Consecutive Integers That Sum to a Given Number	Medium	To Do	To Do
2178	Maximum Split of Positive Even Integers	Medium	To Do	To Do
2179	Count Good Triplets in an Array	Hard	To Do	To Do
2142	The Number of Passengers in Each Bus I 🔒	Medium	To Do	To Do
2143	Choose Numbers From Two Arrays in Range 🔒	Hard	To Do	To Do
2164	Sort Even and Odd Indices Independently	Easy	To Do	To Do
2165	Smallest Value of the Rearranged Number	Medium	To Do	To Do
2166	Design Bitset	Medium	To Do	To Do
2167	Minimum Time to Remove All Cars Containing Illegal Goods	Hard	To Do	To Do
2152	Minimum Number of Lines to Cover Points 🔒	Medium	To Do	To Do
2169	Count Operations to Obtain Zero	Easy	To Do	To Do
2170	Minimum Operations to Make the Array Alternating	Medium	To Do	To Do
2171	Removing Minimum Number of Magic Beans	Medium	To Do	To Do
2172	Maximum AND Sum of Array	Hard	To Do	To Do
2185	Counting Words With a Given Prefix	Easy	To Do	To Do
2186	Minimum Number of Steps to Make Two Strings Anagram II	Medium	To Do	To Do
2187	Minimum Time to Complete Trips	Medium	To Do	To Do
2188	Minimum Time to Finish the Race	Hard	To Do	To Do
2153	The Number of Passengers in Each Bus II 🔒	Hard	To Do	To Do
2158	Amount of New Area Painted Each Day 🔒	Hard	To Do	To Do
2180	Count Integers With Even Digit Sum	Easy	To Do	To Do
2181	Merge Nodes in Between Zeros	Medium	To Do	To Do
2182	Construct String With Repeat Limit	Medium	To Do	To Do
2183	Count Array Pairs Divisible by K	Hard	To Do	To Do
2159	Order Two Columns Independently 🔒	Medium	To Do	To Do
2168	Unique Substrings With Equal Digit Frequency 🔒	Medium	To Do	To Do
2194	Cells in a Range on an Excel Sheet	Easy	To Do	To Do
2195	Append K Integers With Minimal Sum	Medium	To Do	To Do
2196	Create Binary Tree From Descriptions	Medium	To Do	To Do
2197	Replace Non-Coprime Numbers in Array	Hard	To Do	To Do
2206	Divide Array Into Equal Pairs	Easy	To Do	To Do
2207	Maximize Number of Subsequences in a String	Medium	To Do	To Do
2208	Minimum Operations to Halve Array Sum	Medium	To Do	To Do
2209	Minimum White Tiles After Covering With Carpets	Hard	To Do	To Do
2190	Most Frequent Number Following Key In an Array	Easy	To Do	To Do
2173	Longest Winning Streak 🔒	Hard	To Do	To Do
2174	Remove All Ones With Row and Column Flips II 🔒	Medium	To Do	To Do
2175	The Change in Global Rankings 🔒	Medium	To Do	To Do
2210	Count Hills and Valleys in an Array	Easy	To Do	To Do
2211	Count Collisions on a Road	Medium	To Do	To Do
2212	Maximum Points in an Archery Competition	Medium	To Do	To Do
2213	Longest Substring of One Repeating Character	Hard	To Do	To Do
2200	Find All K-Distant Indices in an Array	Easy	To Do	To Do
2203	Minimum Weighted Subgraph With the Required Paths	Hard	To Do	To Do
2184	Number of Ways to Build Sturdy Brick Wall 🔒	Medium	To Do	To Do
2220	Minimum Bit Flips to Convert Number	Easy	To Do	To Do
2221	Find Triangular Sum of an Array	Medium	To Do	To Do
2222	Number of Ways to Select Buildings	Medium	To Do	To Do
2223	Sum of Scores of Built Strings	Hard	To Do	To Do
2231	Largest Number After Digit Swaps by Parity	Easy	To Do	To Do
2232	Minimize Result by Adding Parentheses to Expression	Medium	To Do	To Do
2233	Maximum Product After K Increments	Medium	To Do	To Do
2234	Maximum Total Beauty of the Gardens	Hard	To Do	To Do
2248	Intersection of Multiple Arrays	Easy	To Do	To Do
2249	Count Lattice Points Inside a Circle	Medium	To Do	To Do
2250	Count Number of Rectangles Containing Each Point	Medium	To Do	To Do
2251	Number of Flowers in Full Bloom	Hard	To Do	To Do
2199	Finding the Topic of Each Post 🔒	Hard	To Do	To Do
2205	The Number of Users That Are Eligible for Discount 🔒	Easy	To Do	To Do
2259	Remove Digit From Number to Maximize Result	Easy	To Do	To Do
2260	Minimum Consecutive Cards to Pick Up	Medium	To Do	To Do
2261	K Divisible Elements Subarrays	Medium	To Do	To Do
2262	Total Appeal of A String	Hard	To Do	To Do
2255	Count Prefixes of a Given String	Easy	To Do	To Do
2256	Minimum Average Difference	Medium	To Do	To Do
2257	Count Unguarded Cells in the Grid	Medium	To Do	To Do
2258	Escape the Spreading Fire	Hard	To Do	To Do
2224	Minimum Number of Operations to Convert Time	Easy	To Do	To Do
2264	Largest 3-Same-Digit Number in String	Easy	To Do	To Do
2265	Count Nodes Equal to Average of Subtree	Medium	To Do	To Do
2266	Count Number of Texts	Medium	To Do	To Do
2267	Check if There Is a Valid Parentheses String Path	Hard	To Do	To Do
2239	Find Closest Number to Zero	Easy	To Do	To Do
2240	Number of Ways to Buy Pens and Pencils	Medium	To Do	To Do
2241	Design an ATM Machine	Medium	To Do	To Do
2242	Maximum Score of a Node Sequence	Hard	To Do	To Do
2214	Minimum Health to Beat Game 🔒	Medium	To Do	To Do
2274	Maximum Consecutive Floors Without Special Floors	Medium	To Do	To Do
2275	Largest Combination With Bitwise AND Greater Than Zero	Medium	To Do	To Do
2276	Count Integers in Intervals	Hard	To Do	To Do
2270	Number of Ways to Split Array	Medium	To Do	To Do
2271	Maximum White Tiles Covered by a Carpet	Medium	To Do	To Do
2272	Substring With Largest Variance	Hard	To Do	To Do
2243	Calculate Digit Sum of a String	Easy	To Do	To Do
2244	Minimum Rounds to Complete All Tasks	Medium	To Do	To Do
2245	Maximum Trailing Zeros in a Cornered Path	Medium	To Do	To Do
2246	Longest Path With Different Adjacent Characters	Hard	To Do	To Do
2278	Percentage of Letter in String	Easy	To Do	To Do
2279	Maximum Bags With Full Capacity of Rocks	Medium	To Do	To Do
2280	Minimum Lines to Represent a Line Chart	Medium	To Do	To Do
2281	Sum of Total Strength of Wizards	Hard	To Do	To Do
2219	Maximum Sum Score of Array 🔒	Medium	To Do	To Do
2228	Users With Two Purchases Within Seven Days 🔒	Medium	To Do	To Do
2230	The Users That Are Eligible for Discount 🔒	Easy	To Do	To Do
2287	Rearrange Characters to Make Target String	Easy	To Do	To Do
2288	Apply Discount to Prices	Medium	To Do	To Do
2289	Steps to Make Array Non-decreasing	Medium	To Do	To Do
2290	Minimum Obstacle Removal to Reach Corner	Hard	To Do	To Do
2238	Number of Times a Driver Was a Passenger 🔒	Medium	To Do	To Do
2283	Check if Number Has Equal Digit Count and Digit Value	Easy	To Do	To Do
2284	Sender With Largest Word Count	Medium	To Do	To Do
2285	Maximum Total Importance of Roads	Medium	To Do	To Do
2286	Booking Concert Tickets in Groups	Hard	To Do	To Do
2252	Dynamic Pivoting of a Table 🔒	Hard	To Do	To Do
2253	Dynamic Unpivoting of a Table 🔒	Hard	To Do	To Do
2235	Add Two Integers	Easy	To Do	To Do
2236	Root Equals Sum of Children	Easy	To Do	To Do
2237	Count Positions on Street With Required Brightness 🔒	Medium	To Do	To Do
2293	Min Max Game	Easy	To Do	To Do
2294	Partition Array Such That Maximum Difference Is K	Medium	To Do	To Do
2295	Replace Elements in an Array	Medium	To Do	To Do
2296	Design a Text Editor	Hard	To Do	To Do
2306	Naming a Company	Hard	To Do	To Do
2299	Strong Password Checker II	Easy	To Do	To Do
2300	Successful Pairs of Spells and Potions	Medium	To Do	To Do
2301	Match Substring After Replacement	Hard	To Do	To Do
2302	Count Subarrays With Score Less Than K	Hard	To Do	To Do
2311	Longest Binary Subsequence Less Than or Equal to K	Medium	To Do	To Do
2254	Design Video Sharing Platform 🔒	Hard	To Do	To Do
2320	Count Number of Ways to Place Houses	Medium	To Do	To Do
2319	Check if Matrix Is X-Matrix	Easy	To Do	To Do
2313	Minimum Flips in Binary Tree to Get Result 🔒	Hard	To Do	To Do
2322	Minimum Score After Removals on a Tree	Hard	To Do	To Do
2315	Count Asterisks	Easy	To Do	To Do
2317	Maximum XOR After Operations	Medium	To Do	To Do
2316	Count Unreachable Pairs of Nodes in an Undirected Graph	Medium	To Do	To Do
2318	Number of Distinct Roll Sequences	Hard	To Do	To Do
2268	Minimum Number of Keypresses 🔒	Medium	To Do	To Do
2325	Decode the Message	Easy	To Do	To Do
2327	Number of People Aware of a Secret	Medium	To Do	To Do
2328	Number of Increasing Paths in a Grid	Hard	To Do	To Do
2326	Spiral Matrix IV	Medium	To Do	To Do
2335	Minimum Amount of Time to Fill Cups	Easy	To Do	To Do
2336	Smallest Number in Infinite Set	Medium	To Do	To Do
2337	Move Pieces to Obtain a String	Medium	To Do	To Do
2338	Count the Number of Ideal Arrays	Hard	To Do	To Do
2331	Evaluate Boolean Binary Tree	Easy	To Do	To Do
2332	The Latest Time to Catch a Bus	Medium	To Do	To Do
2333	Minimum Sum of Squared Difference	Medium	To Do	To Do
2334	Subarray With Elements Greater Than Varying Threshold	Hard	To Do	To Do
2277	Closest Node to Path in Tree 🔒	Hard	To Do	To Do
2341	Maximum Number of Pairs in Array	Easy	To Do	To Do
2343	Query Kth Smallest Trimmed Number	Medium	To Do	To Do
2344	Minimum Deletions to Make Array Divisible	Hard	To Do	To Do
2282	Number of People That Can Be Seen in a Grid 🔒	Medium	To Do	To Do
2291	Maximum Profit From Trading Stocks 🔒	Medium	To Do	To Do
2351	First Letter to Appear Twice	Easy	To Do	To Do
2352	Equal Row and Column Pairs	Medium	To Do	To Do
2353	Design a Food Rating System	Medium	To Do	To Do
2354	Number of Excellent Pairs	Hard	To Do	To Do
2292	Products With Three or More Orders in Two Consecutive Years 🔒	Medium	To Do	To Do
2348	Number of Zero-Filled Subarrays	Medium	To Do	To Do
2347	Best Poker Hand	Easy	To Do	To Do
2349	Design a Number Container System	Medium	To Do	To Do
2350	Shortest Impossible Sequence of Rolls	Hard	To Do	To Do
2357	Make Array Zero by Subtracting Equal Amounts	Easy	To Do	To Do
2358	Maximum Number of Groups Entering a Competition	Medium	To Do	To Do
2359	Find Closest Node to Given Two Nodes	Medium	To Do	To Do
2360	Longest Cycle in a Graph	Hard	To Do	To Do
2298	Tasks Count in the Weekend 🔒	Medium	To Do	To Do
2308	Arrange Table by Gender 🔒	Medium	To Do	To Do
2367	Number of Arithmetic Triplets	Easy	To Do	To Do
2369	Check if There is a Valid Partition For The Array	Medium	To Do	To Do
2370	Longest Ideal Subsequence	Medium	To Do	To Do
2368	Reachable Nodes With Restrictions	Medium	To Do	To Do
2314	The First Day of the Maximum Recorded Degree in Each City 🔒	Medium	To Do	To Do
2363	Merge Similar Items	Easy	To Do	To Do
2364	Count Number of Bad Pairs	Medium	To Do	To Do
2398	Maximum Number of Robots Within Budget	Hard	To Do	To Do
2366	Minimum Replacements to Sort the Array	Hard	To Do	To Do
2324	Product Sales Analysis IV 🔒	Medium	To Do	To Do
2329	Product Sales Analysis V 🔒	Easy	To Do	To Do
2339	All the Matches of the League 🔒	Easy	To Do	To Do
2373	Largest Local Values in a Matrix	Easy	To Do	To Do
2374	Node With Highest Edge Score	Medium	To Do	To Do
2375	Construct Smallest Number From DI String	Medium	To Do	To Do
2376	Count Special Integers	Hard	To Do	To Do
2323	Find Minimum Time to Finish All Jobs II 🔒	Medium	To Do	To Do
2383	Minimum Hours of Training to Win a Competition	Easy	To Do	To Do
2385	Amount of Time for Binary Tree to Be Infected	Medium	To Do	To Do
2386	Find the K-Sum of an Array	Hard	To Do	To Do
2379	Minimum Recolors to Get K Consecutive Black Blocks	Easy	To Do	To Do
2380	Time Needed to Rearrange a Binary String	Medium	To Do	To Do
2381	Shifting Letters II	Medium	To Do	To Do
2382	Maximum Segment Sum After Removals	Hard	To Do	To Do
2330	Valid Palindrome IV 🔒	Medium	To Do	To Do
2389	Longest Subsequence With Limited Sum	Easy	To Do	To Do
2390	Removing Stars From a String	Medium	To Do	To Do
2391	Minimum Amount of Time to Collect Garbage	Medium	To Do	To Do
2392	Build a Matrix With Conditions	Hard	To Do	To Do
2342	Max Sum of a Pair With Equal Sum of Digits	Medium	To Do	To Do
2340	Minimum Adjacent Swaps to Make a Valid Array 🔒	Medium	To Do	To Do
2384	Largest Palindromic Number	Medium	To Do	To Do
2399	Check Distances Between Same Letters	Easy	To Do	To Do
2400	Number of Ways to Reach a Position After Exactly k Steps	Medium	To Do	To Do
2401	Longest Nice Subarray	Medium	To Do	To Do
2402	Meeting Rooms III	Hard	To Do	To Do
2395	Find Subarrays With Equal Sum	Easy	To Do	To Do
2396	Strictly Palindromic Number	Medium	To Do	To Do
2397	Maximum Rows Covered by Columns	Medium	To Do	To Do
2365	Task Scheduler II	Medium	To Do	To Do
2346	Compute the Rank as a Percentage 🔒	Medium	To Do	To Do
2345	Finding the Number of Visible Mountains 🔒	Medium	To Do	To Do
2404	Most Frequent Even Element	Easy	To Do	To Do
2405	Optimal Partition of String	Medium	To Do	To Do
2406	Divide Intervals Into Minimum Number of Groups	Medium	To Do	To Do
2459	Sort Array by Moving Items to Empty Space 🔒	Hard	To Do	To Do
2355	Maximum Number of Books You Can Take 🔒	Hard	To Do	To Do
2413	Smallest Even Multiple	Easy	To Do	To Do
2414	Length of the Longest Alphabetical Continuous Substring	Medium	To Do	To Do
2415	Reverse Odd Levels of Binary Tree	Medium	To Do	To Do
2416	Sum of Prefix Scores of Strings	Hard	To Do	To Do
2356	Number of Unique Subjects Taught by Each Teacher	Easy	To Do	To Do
2409	Count Days Spent Together	Easy	To Do	To Do
2410	Maximum Matching of Players With Trainers	Medium	To Do	To Do
2411	Smallest Subarrays With Maximum Bitwise OR	Medium	To Do	To Do
2412	Minimum Money Required Before Transactions	Hard	To Do	To Do
2361	Minimum Costs Using the Train Line 🔒	Hard	To Do	To Do
2362	Generate the Invoice 🔒	Hard	To Do	To Do
2418	Sort the People	Easy	To Do	To Do
2419	Longest Subarray With Maximum Bitwise AND	Medium	To Do	To Do
2420	Find All Good Indices	Medium	To Do	To Do
2421	Number of Good Paths	Hard	To Do	To Do
2371	Minimize Maximum Value in a Grid 🔒	Hard	To Do	To Do
2427	Number of Common Factors	Easy	To Do	To Do
2428	Maximum Sum of an Hourglass	Medium	To Do	To Do
2429	Minimize XOR	Medium	To Do	To Do
2430	Maximum Deletions on a String	Hard	To Do	To Do
2522	Partition String Into Substrings With Values at Most K	Medium	To Do	To Do
2424	Longest Uploaded Prefix	Medium	To Do	To Do
2426	Number of Pairs Satisfying Inequality	Hard	To Do	To Do
2372	Calculate the Influence of Each Salesperson 🔒	Medium	To Do	To Do
2377	Sort the Olympic Table 🔒	Easy	To Do	To Do
2378	Choose Edges to Maximize Score in a Tree 🔒	Medium	To Do	To Do
2432	The Employee That Worked on the Longest Task	Easy	To Do	To Do
2433	Find The Original Array of Prefix Xor	Medium	To Do	To Do
2434	Using a Robot to Print the Lexicographically Smallest String	Medium	To Do	To Do
2435	Paths in Matrix Whose Sum Is Divisible by K	Hard	To Do	To Do
2387	Median of a Row Wise Sorted Matrix 🔒	Medium	To Do	To Do
2388	Change Null Values in a Table to the Previous Value 🔒	Medium	To Do	To Do
2441	Largest Positive Integer That Exists With Its Negative	Easy	To Do	To Do
2442	Count Number of Distinct Integers After Reverse Operations	Medium	To Do	To Do
2407	Longest Increasing Subsequence II	Hard	To Do	To Do
2444	Count Subarrays With Fixed Bounds	Hard	To Do	To Do
2437	Number of Valid Clock Times	Easy	To Do	To Do
2438	Range Product Queries of Powers	Medium	To Do	To Do
2439	Minimize Maximum of Array	Medium	To Do	To Do
2440	Create Components With Same Value	Hard	To Do	To Do
2423	Remove Letter To Equalize Frequency	Easy	To Do	To Do
2425	Bitwise XOR of All Pairings	Medium	To Do	To Do
2394	Employees With Deductions 🔒	Medium	To Do	To Do
2393	Count Strictly Increasing Subarrays 🔒	Medium	To Do	To Do
2446	Determine if Two Events Have Conflict	Easy	To Do	To Do
2403	Minimum Time to Kill All Monsters 🔒	Hard	To Do	To Do
2448	Minimum Cost to Make Array Equal	Hard	To Do	To Do
2449	Minimum Number of Operations to Make Arrays Similar	Hard	To Do	To Do
2647	Color the Triangle Red 🔒	Hard	To Do	To Do
2443	Sum of Number and Its Reverse	Medium	To Do	To Do
2455	Average Value of Even Numbers That Are Divisible by Three	Easy	To Do	To Do
2456	Most Popular Video Creator	Medium	To Do	To Do
2457	Minimum Addition to Make Integer Beautiful	Medium	To Do	To Do
2458	Height of Binary Tree After Subtree Removal Queries	Hard	To Do	To Do
2447	Number of Subarrays With GCD Equal to K	Medium	To Do	To Do
2451	Odd String Difference	Easy	To Do	To Do
2453	Destroy Sequential Targets	Medium	To Do	To Do
2454	Next Greater Element IV	Hard	To Do	To Do
2452	Words Within Two Edits of Dictionary	Medium	To Do	To Do
2460	Apply Operations to an Array	Easy	To Do	To Do
2461	Maximum Sum of Distinct Subarrays With Length K	Medium	To Do	To Do
2462	Total Cost to Hire K Workers	Medium	To Do	To Do
2463	Minimum Total Distance Traveled	Hard	To Do	To Do
2408	Design SQL 🔒	Medium	To Do	To Do
2469	Convert the Temperature	Easy	To Do	To Do
2470	Number of Subarrays With LCM Equal to K	Medium	To Do	To Do
2471	Minimum Number of Operations to Sort a Binary Tree by Level	Medium	To Do	To Do
2472	Maximum Number of Non-overlapping Palindrome Substrings	Hard	To Do	To Do
2417	Closest Fair Integer 🔒	Medium	To Do	To Do
2465	Number of Distinct Averages	Easy	To Do	To Do
2466	Count Ways To Build Good Strings	Medium	To Do	To Do
2468	Split Message Based on Limit	Hard	To Do	To Do
2467	Most Profitable Path in a Tree	Medium	To Do	To Do
2422	Merge Operations to Turn Array Into a Palindrome 🔒	Medium	To Do	To Do
2475	Number of Unequal Triplets in Array	Easy	To Do	To Do
2476	Closest Nodes Queries in a Binary Search Tree	Medium	To Do	To Do
2477	Minimum Fuel Cost to Report to the Capital	Medium	To Do	To Do
2478	Number of Beautiful Partitions	Hard	To Do	To Do
2431	Maximize Total Tastiness of Purchased Fruits 🔒	Medium	To Do	To Do
2485	Find the Pivot Integer	Easy	To Do	To Do
2486	Append Characters to String to Make Subsequence	Medium	To Do	To Do
2487	Remove Nodes From Linked List	Medium	To Do	To Do
2488	Count Subarrays With Median K	Hard	To Do	To Do
2481	Minimum Cuts to Divide a Circle	Easy	To Do	To Do
2483	Minimum Penalty for a Shop	Medium	To Do	To Do
2484	Count Palindromic Subsequences	Hard	To Do	To Do
2436	Minimum Split Into Subarrays With GCD Greater Than One 🔒	Medium	To Do	To Do
2490	Circular Sentence	Easy	To Do	To Do
2491	Divide Players Into Teams of Equal Skill	Medium	To Do	To Do
2492	Minimum Score of a Path Between Two Cities	Medium	To Do	To Do
2493	Divide Nodes Into the Maximum Number of Groups	Hard	To Do	To Do
2445	Number of Nodes With Value One 🔒	Medium	To Do	To Do
2500	Delete Greatest Value in Each Row	Easy	To Do	To Do
2501	Longest Square Streak in an Array	Medium	To Do	To Do
2502	Design Memory Allocator	Medium	To Do	To Do
2503	Maximum Number of Points From Grid Queries	Hard	To Do	To Do
2496	Maximum Value of a String in an Array	Easy	To Do	To Do
2497	Maximum Star Sum of a Graph	Medium	To Do	To Do
2498	Frog Jump II	Medium	To Do	To Do
2499	Minimum Total Cost to Make Arrays Unequal	Hard	To Do	To Do
2450	Number of Distinct Binary Strings After Applying Operations 🔒	Medium	To Do	To Do
2506	Count Pairs Of Similar Strings	Easy	To Do	To Do
2507	Smallest Value After Replacing With Sum of Prime Factors	Medium	To Do	To Do
2508	Add Edges to Make Degrees of All Nodes Even	Hard	To Do	To Do
2509	Cycle Length Queries in a Tree	Hard	To Do	To Do
2515	Shortest Distance to Target String in a Circular Array	Easy	To Do	To Do
2516	Take K of Each Character From Left and Right	Medium	To Do	To Do
2517	Maximum Tastiness of Candy Basket	Medium	To Do	To Do
2518	Number of Great Partitions	Hard	To Do	To Do
2511	Maximum Enemy Forts That Can Be Captured	Easy	To Do	To Do
2512	Reward Top K Students	Medium	To Do	To Do
2541	Minimum Operations to Make Array Equal II	Medium	To Do	To Do
2514	Count Anagrams	Hard	To Do	To Do
2482	Difference Between Ones and Zeros in Row and Column	Medium	To Do	To Do
2464	Minimum Subarrays in a Valid Split 🔒	Medium	To Do	To Do
2520	Count the Digits That Divide a Number	Easy	To Do	To Do
2521	Distinct Prime Factors of Product of Array	Medium	To Do	To Do
2523	Closest Prime Numbers in Range	Medium	To Do	To Do
2473	Minimum Cost to Buy Apples 🔒	Medium	To Do	To Do
2474	Customers With Strictly Increasing Purchases 🔒	Hard	To Do	To Do
2529	Maximum Count of Positive Integer and Negative Integer	Easy	To Do	To Do
2531	Make Number of Distinct Characters Equal	Medium	To Do	To Do
2530	Maximal Score After Applying K Operations	Medium	To Do	To Do
2534	Time Taken to Cross the Door 🔒	Hard	To Do	To Do
2528	Maximize the Minimum Powered City	Hard	To Do	To Do
2525	Categorize Box According to Criteria	Easy	To Do	To Do
2526	Find Consecutive Integers from a Data Stream	Medium	To Do	To Do
2527	Find Xor-Beauty of Array	Medium	To Do	To Do
2480	Form a Chemical Bond 🔒	Easy	To Do	To Do
2479	Maximum XOR of Two Non-Overlapping Subtrees 🔒	Hard	To Do	To Do
2535	Difference Between Element Sum and Digit Sum of an Array	Easy	To Do	To Do
2536	Increment Submatrices by One	Medium	To Do	To Do
2537	Count the Number of Good Subarrays	Medium	To Do	To Do
2538	Difference Between Maximum and Minimum Price Sum	Hard	To Do	To Do
2513	Minimize the Maximum of Two Arrays	Medium	To Do	To Do
2489	Number of Substrings With Fixed Ratio 🔒	Medium	To Do	To Do
2544	Alternating Digit Sum	Easy	To Do	To Do
2545	Sort the Students by Their Kth Score	Medium	To Do	To Do
2546	Apply Bitwise Operations to Make Strings Equal	Medium	To Do	To Do
2547	Minimum Cost to Split an Array	Hard	To Do	To Do
2540	Minimum Common Value	Easy	To Do	To Do
2543	Check if Point Is Reachable	Hard	To Do	To Do
2542	Maximum Subsequence Score	Medium	To Do	To Do
2494	Merge Overlapping Events in the Same Hall 🔒	Hard	To Do	To Do
2495	Number of Subarrays Having Even Product 🔒	Medium	To Do	To Do
2553	Separate the Digits in an Array	Easy	To Do	To Do
2554	Maximum Number of Integers to Choose From a Range I	Medium	To Do	To Do
2556	Disconnect Path in a Binary Matrix by at Most One Flip	Medium	To Do	To Do
2532	Time to Cross a Bridge	Hard	To Do	To Do
2504	Concatenate the Name and the Profession 🔒	Easy	To Do	To Do
2505	Bitwise OR of All Subsequence Sums 🔒	Medium	To Do	To Do
2582	Pass the Pillow	Easy	To Do	To Do
2583	Kth Largest Sum in a Binary Tree	Medium	To Do	To Do
2584	Split the Array to Make Coprime Products	Hard	To Do	To Do
2585	Number of Ways to Earn Points	Hard	To Do	To Do
2579	Count Total Number of Colored Cells	Medium	To Do	To Do
2578	Split With Minimum Sum	Easy	To Do	To Do
2580	Count Ways to Group Overlapping Ranges	Medium	To Do	To Do
2581	Count Number of Possible Root Nodes	Hard	To Do	To Do
2510	Check if There is a Path With Equal Number of 0's And 1's 🔒	Medium	To Do	To Do
2586	Count the Number of Vowel Strings in Range	Easy	To Do	To Do
2587	Rearrange Array to Maximize Prefix Score	Medium	To Do	To Do
2588	Count the Number of Beautiful Subarrays	Medium	To Do	To Do
2589	Minimum Time to Complete All Tasks	Hard	To Do	To Do
2519	Count the Number of K-Big Indices 🔒	Hard	To Do	To Do
2595	Number of Even and Odd Bits	Easy	To Do	To Do
2598	Smallest Missing Non-negative Integer After Operations	Medium	To Do	To Do
2596	Check Knight Tour Configuration	Medium	To Do	To Do
2591	Distribute Money to Maximum Children	Easy	To Do	To Do
2592	Maximize Greatness of an Array	Medium	To Do	To Do
2594	Minimum Time to Repair Cars	Medium	To Do	To Do
2604	Minimum Time to Eat All Grains 🔒	Hard	To Do	To Do
2524	Maximum Frequency Score of a Subarray 🔒	Hard	To Do	To Do
2605	Form Smallest Number From Two Digit Arrays	Easy	To Do	To Do
2606	Find the Substring With Maximum Cost	Medium	To Do	To Do
2607	Make K-Subarray Sums Equal	Medium	To Do	To Do
2608	Shortest Cycle in a Graph	Hard	To Do	To Do
2533	Number of Good Binary Strings 🔒	Medium	To Do	To Do
2555	Maximize Win From Two Segments	Medium	To Do	To Do
2599	Make the Prefix Sum Non-negative 🔒	Medium	To Do	To Do
2639	Find the Width of Columns of a Grid	Easy	To Do	To Do
2640	Find the Score of All Prefixes of an Array	Medium	To Do	To Do
2641	Cousins in Binary Tree II	Medium	To Do	To Do
2642	Design Graph With Shortest Path Calculator	Hard	To Do	To Do
2549	Count Distinct Numbers on Board	Easy	To Do	To Do
2550	Count Collisions of Monkeys on a Polygon	Medium	To Do	To Do
2551	Put Marbles in Bags	Hard	To Do	To Do
2552	Count Increasing Quadruplets	Hard	To Do	To Do
2539	Count the Number of Good Subsequences 🔒	Medium	To Do	To Do
2660	Determine the Winner of a Bowling Game	Easy	To Do	To Do
2661	First Completely Painted Row or Column	Medium	To Do	To Do
2662	Minimum Cost of a Path With Special Roads	Medium	To Do	To Do
2663	Lexicographically Smallest Beautiful String	Hard	To Do	To Do
2590	Design a Todo List 🔒	Medium	To Do	To Do
2561	Rearranging Fruits	Hard	To Do	To Do
2560	House Robber IV	Medium	To Do	To Do
2559	Count Vowel Strings in Ranges	Medium	To Do	To Do
2558	Take Gifts From the Richest Pile	Easy	To Do	To Do
2548	Maximum Price to Fill a Bag 🔒	Medium	To Do	To Do
2644	Find the Maximum Divisibility Score	Easy	To Do	To Do
2593	Find Score of an Array After Marking All Elements	Medium	To Do	To Do
2597	The Number of Beautiful Subsets	Medium	To Do	To Do
2617	Minimum Number of Visited Cells in a Grid	Hard	To Do	To Do
2562	Find the Array Concatenation Value	Easy	To Do	To Do
2563	Count the Number of Fair Pairs	Medium	To Do	To Do
2564	Substring XOR Queries	Medium	To Do	To Do
2565	Subsequence With the Minimum Score	Hard	To Do	To Do
2557	Maximum Number of Integers to Choose From a Range II 🔒	Medium	To Do	To Do
2569	Handling Sum Queries After Update	Hard	To Do	To Do
2566	Maximum Difference by Remapping a Digit	Easy	To Do	To Do
2568	Minimum Impossible OR	Medium	To Do	To Do
2567	Minimum Score by Changing Two Elements	Medium	To Do	To Do
2570	Merge Two 2D Arrays by Summing Values	Easy	To Do	To Do
2573	Find the String with LCP	Hard	To Do	To Do
2572	Count the Number of Square-Free Subsets	Medium	To Do	To Do
2571	Minimum Operations to Reduce an Integer to 0	Medium	To Do	To Do
2577	Minimum Time to Visit a Cell In a Grid	Hard	To Do	To Do
2576	Find the Maximum Number of Marked Indices	Medium	To Do	To Do
2575	Find the Divisibility Array of a String	Medium	To Do	To Do
2574	Left and Right Sum Differences	Easy	To Do	To Do
2600	K Items With the Maximum Sum	Easy	To Do	To Do
2601	Prime Subtraction Operation	Medium	To Do	To Do
2603	Collect Coins in a Tree	Hard	To Do	To Do
2602	Minimum Operations to Make All Array Elements Equal	Medium	To Do	To Do
2613	Beautiful Pairs 🔒	Hard	To Do	To Do
2616	Minimize the Maximum Difference of Pairs	Medium	To Do	To Do
2615	Sum of Distances	Medium	To Do	To Do
2614	Prime In Diagonal	Easy	To Do	To Do
2609	Find the Longest Balanced Substring of a Binary String	Easy	To Do	To Do
2610	Convert an Array Into a 2D Array With Conditions	Medium	To Do	To Do
2611	Mice and Cheese	Medium	To Do	To Do
2612	Minimum Reverse Operations	Hard	To Do	To Do
2678	Number of Senior Citizens	Easy	To Do	To Do
2679	Sum in a Matrix	Medium	To Do	To Do
2680	Maximum OR	Medium	To Do	To Do
2623	Memoize	Medium	To Do	To Do
2620	Counter	Easy	To Do	To Do
2621	Sleep	Easy	To Do	To Do
2619	Array Prototype Last	Easy	To Do	To Do
2628	JSON Deep Equal	Medium	To Do	To Do
2645	Minimum Additions to Make Valid String	Medium	To Do	To Do
2643	Row With Maximum Ones	Easy	To Do	To Do
2638	Count the Number of K-Free Subsets 🔒	Medium	To Do	To Do
2646	Minimize the Total Price of the Trips	Hard	To Do	To Do
2632	Curry	Medium	To Do	To Do
2629	Function Composition	Easy	To Do	To Do
2631	Group By	Medium	To Do	To Do
2627	Debounce	Medium	To Do	To Do
2630	Memoize II	Hard	To Do	To Do
2633	Convert Object to JSON String	Medium	To Do	To Do
2634	Filter Elements from Array	Easy	To Do	To Do
2635	Apply Transform Over Each Element in Array	Easy	To Do	To Do
2651	Calculate Delayed Arrival Time	Easy	To Do	To Do
2637	Promise Time Limit	Easy	To Do	To Do
2636	Promise Pool	Medium	To Do	To Do
2653	Sliding Subarray Beauty	Medium	To Do	To Do
2652	Sum Multiples	Easy	To Do	To Do
2654	Minimum Number of Operations to Make All Array Elements Equal to 1	Medium	To Do	To Do
2618	Check if Object Instance of Class	Medium	To Do	To Do
2625	Flatten Deeply Nested Array	Medium	To Do	To Do
2624	Snail Traversal	Medium	To Do	To Do
2626	Array Reduce Transformation	Easy	To Do	To Do
2622	Cache With Time Limit	Medium	To Do	To Do
2658	Maximum Number of Fish in a Grid	Medium	To Do	To Do
2659	Make Array Empty	Hard	To Do	To Do
2657	Find the Prefix Common Array of Two Arrays	Medium	To Do	To Do
2656	Maximum Sum With Exactly K Elements	Easy	To Do	To Do
2675	Array of Objects to Matrix	Medium	To Do	To Do
2676	Throttle	Medium	To Do	To Do
2648	Generate Fibonacci Sequence	Easy	To Do	To Do
2670	Find the Distinct Difference Array	Easy	To Do	To Do
2671	Frequency Tracker	Medium	To Do	To Do
2672	Number of Adjacent Elements With the Same Color	Medium	To Do	To Do
2673	Make Costs of Paths Equal in a Binary Tree	Medium	To Do	To Do
2649	Nested Array Generator	Medium	To Do	To Do
2681	Power of Heroes	Hard	To Do	To Do
2650	Design Cancellable Function	Hard	To Do	To Do
2665	Counter II	Easy	To Do	To Do
2682	Find the Losers of the Circular Game	Easy	To Do	To Do
2683	Neighboring Bitwise XOR	Medium	To Do	To Do
2685	Count the Number of Complete Components	Medium	To Do	To Do
2684	Maximum Number of Moves in a Grid	Medium	To Do	To Do
2666	Allow One Function Call	Easy	To Do	To Do
2677	Chunk Array	Easy	To Do	To Do
2667	Create Hello World Function	Easy	To Do	To Do
2655	Find Maximal Uncovered Ranges 🔒	Medium	To Do	To Do
2664	The Knight’s Tour 🔒	Medium	To Do	To Do
2668	Find Latest Salaries 🔒	Easy	To Do	To Do
2669	Count Artist Occurrences On Spotify Ranking List 🔒	Easy	To Do	To Do
2674	Split a Circular Linked List 🔒	Medium	To Do	To Do
2686	Immediate Food Delivery III 🔒	Medium	To Do	To Do
2687	Bikes Last Time Used 🔒	Easy	To Do	To Do
2688	Find Active Users 🔒	Medium	To Do	To Do