Python solutions for Leetcode

Python solutions of problems from LeetCode.

${\color{green}Easy}$	${\color{orange}Medium}$	${\color{red}Hard}$	${\color{black}Total}$
273	205	15	493

0001 - 0250	1001 - 1250	2001 - 2250	3001 - 3250
0251 - 0500	1251 - 1500	2251 - 2500	3251 - 3500
0501 - 0750	1501 - 1750	2501 - 2750	3501 - 3750
0751 - 1000	1751 - 2000	2751 - 3000

0001 - 0250

Num	Task name	Difficulty	Code
0001	Two Sum	${\color{green}Easy}$	</code>
0002	Add Two Numbers	${\color{orange}Medium}$	</code>
0003	Longest Substring Without Repeating Characters	${\color{orange}Medium}$	</code>
0004	Median of Two Sorted Arrays	${\color{red}Hard}$	</code>
0006	Zigzag Conversion	${\color{orange}Medium}$	</code>
0007	Reverse Integer	${\color{orange}Medium}$	</code>
0009	Palindrome Number	${\color{green}Easy}$	</code>
0011	Container With Most Water	${\color{orange}Medium}$	</code>
0012	Integer to Roman	${\color{orange}Medium}$	</code>
0013	Roman to Integer	${\color{green}Easy}$	</code>
0014	Longest Common Prefix	${\color{green}Easy}$	</code>
0017	Letter Combinations of a Phone Number	${\color{orange}Medium}$	</code>
0020	Valid Parentheses	${\color{green}Easy}$	</code>
0021	Merge Two Sorted Lists	${\color{green}Easy}$	</code>
0023	Merge k Sorted Lists	${\color{red}Hard}$	</code>
0024	Swap Nodes in Pairs	${\color{orange}Medium}$	</code>
0026	Remove Duplicates from Sorted Array	${\color{green}Easy}$	</code>
0027	Remove Element	${\color{green}Easy}$	</code>
0028	Find the Index of the First Occurrence in a String	${\color{green}Easy}$	</code>
0032	Longest Valid Parentheses	${\color{red}Hard}$	</code>
0033	Search in Rotated Sorted Array	${\color{orange}Medium}$	</code>
0034	Find First and Last Position of Element in Sorted Array	${\color{orange}Medium}$	</code>
0035	Search Insert Position	${\color{green}Easy}$	</code>
0036	Valid Sudoku	${\color{orange}Medium}$	</code>
0041	First Missing Positive	${\color{red}Hard}$	</code>
0043	Multiply Strings	${\color{orange}Medium}$	</code>
0046	Permutations	${\color{orange}Medium}$	</code>
0047	Permutations II	${\color{orange}Medium}$	</code>
0048	Rotate Image	${\color{orange}Medium}$	</code>
0049	Group Anagrams	${\color{orange}Medium}$	</code>
0050	Pow(x, n)	${\color{orange}Medium}$	</code>
0051	N-Queens	${\color{red}Hard}$	</code>
0052	N-Queens II	${\color{red}Hard}$	</code>
0054	Spiral Matrix	${\color{orange}Medium}$	</code>
0058	Length of Last Word	${\color{green}Easy}$	</code>
0059	Spiral Matrix II	${\color{orange}Medium}$	</code>
0061	Rotate List	${\color{orange}Medium}$	</code>
0062	Unique Paths	${\color{orange}Medium}$	</code>
0063	Unique Paths II	${\color{orange}Medium}$	</code>
0064	Minimum Path Sum	${\color{orange}Medium}$	</code>
0065	Valid Number	${\color{red}Hard}$	</code>
0066	Plus One	${\color{green}Easy}$	</code>
0067	Add Binary	${\color{green}Easy}$	</code>
0068	Text Justification	${\color{red}Hard}$	</code>
0069	Sqrt(x)	${\color{green}Easy}$	</code>
0070	Climbing Stairs	${\color{green}Easy}$	</code>
0072	Edit Distance	${\color{orange}Medium}$	</code>
0074	Search a 2D Matrix	${\color{orange}Medium}$	</code>
0075	Sort Colors	${\color{orange}Medium}$	</code>
0077	Combinations	${\color{orange}Medium}$	</code>
0081	Search in Rotated Sorted Array II	${\color{orange}Medium}$	</code>
0083	Remove Duplicates from Sorted List	${\color{green}Easy}$	</code>
0091	Decode Ways	${\color{orange}Medium}$	</code>
0094	Binary Tree Inorder Traversal	${\color{green}Easy}$	</code>
0100	Same Tree	${\color{green}Easy}$	</code>
0104	Maximum Depth of Binary Tree	${\color{green}Easy}$	</code>
0118	Pascal's Triangle	${\color{green}Easy}$	</code>
0119	Pascal's Triangle II	${\color{green}Easy}$	</code>
0121	Best Time to Buy and Sell Stock	${\color{green}Easy}$	</code>
0125	Valid Palindrome	${\color{green}Easy}$	</code>
0136	Single Number	${\color{green}Easy}$	</code>
0137	Single Number II	${\color{orange}Medium}$	</code>
0139	Word Break	${\color{orange}Medium}$	</code>
0141	Linked List Cycle	${\color{green}Easy}$	</code>
0150	Evaluate Reverse Polish Notation	${\color{orange}Medium}$	</code>
0151	Reverse Words in a String	${\color{orange}Medium}$	</code>
0155	Min Stack	${\color{orange}Medium}$	</code>
0160	Intersection of Two Linked Lists	${\color{green}Easy}$	</code>
0162	Find Peak Element	${\color{orange}Medium}$	</code>
0165	Compare Version Numbers	${\color{orange}Medium}$	</code>
0168	Excel Sheet Column Title	${\color{green}Easy}$	</code>
0169	Majority Element	${\color{green}Easy}$	</code>
0171	Excel Sheet Column Number	${\color{green}Easy}$	</code>
0172	Factorial Trailing Zeroes	${\color{orange}Medium}$	</code>
0175	Combine Two Tables	${\color{green}Easy}$	</code>
0176	Second Highest Salary	${\color{orange}Medium}$	</code>
0179	Largest Number	${\color{orange}Medium}$	</code>
0181	Employees Earning More Than Their Managers	${\color{green}Easy}$	</code>
0182	Duplicate Emails	${\color{green}Easy}$	</code>
0183	Customers Who Never Order	${\color{green}Easy}$	</code>
0189	Rotate Array	${\color{orange}Medium}$	</code>
0190	Reverse Bits	${\color{green}Easy}$	</code>
0191	Number of 1 Bits	${\color{green}Easy}$	</code>
0193	Valid Phone Numbers	${\color{green}Easy}$	</code>
0196	Delete Duplicate Emails	${\color{green}Easy}$	</code>
0197	Rising Temperature	${\color{green}Easy}$	</code>
0198	House Robber	${\color{orange}Medium}$	</code>
0199	Binary Tree Right Side View	${\color{orange}Medium}$	</code>
0200	Number of Islands	${\color{orange}Medium}$	</code>
0202	Happy Number	${\color{green}Easy}$	</code>
0203	Remove Linked List Elements	${\color{green}Easy}$	</code>
0205	Isomorphic Strings	${\color{green}Easy}$	</code>
0206	Reverse Linked List	${\color{green}Easy}$	</code>
0215	Kth Largest Element in an Array	${\color{orange}Medium}$	</code>
0216	Combination Sum III	${\color{orange}Medium}$	</code>
0217	Contains Duplicate	${\color{green}Easy}$	</code>
0223	Rectangle Area	${\color{orange}Medium}$	</code>
0225	Implement Stack using Queues	${\color{green}Easy}$	</code>
0228	Summary Ranges	${\color{green}Easy}$	</code>
0229	Majority Element II	${\color{orange}Medium}$	</code>
0231	Power of Two	${\color{green}Easy}$	</code>
0232	Implement Queue using Stacks	${\color{green}Easy}$	</code>
0234	Palindrome Linked List	${\color{green}Easy}$	</code>
0238	Product of Array Except Self	${\color{orange}Medium}$	</code>
0240	Search a 2D Matrix II	${\color{orange}Medium}$	</code>
0242	Valid Anagram	${\color{green}Easy}$	</code>

0251 - 0500

Num	Task name	Difficulty	Code
0258	Add Digits	${\color{green}Easy}$	</code>
0260	Single Number III	${\color{orange}Medium}$	</code>
0263	Ugly Number	${\color{green}Easy}$	</code>
0264	Ugly Number II	${\color{orange}Medium}$	</code>
0268	Missing Number	${\color{green}Easy}$	</code>
0273	Integer to English Words	${\color{red}Hard}$	</code>
0278	First Bad Version	${\color{green}Easy}$	</code>
0283	Move Zeroes	${\color{green}Easy}$	</code>
0287	Find the Duplicate Number	${\color{orange}Medium}$	</code>
0290	Word Pattern	${\color{green}Easy}$	</code>
0292	Nim Game	${\color{green}Easy}$	</code>
0299	Bulls and Cows	${\color{orange}Medium}$	</code>
0300	Longest Increasing Subsequence	${\color{orange}Medium}$	</code>
0303	Range Sum Query - Immutable	${\color{green}Easy}$	</code>
0326	Power of Three	${\color{green}Easy}$	</code>
0328	Odd Even Linked List	${\color{orange}Medium}$	</code>
0334	Increasing Triplet Subsequence	${\color{orange}Medium}$	</code>
0338	Counting Bits	${\color{green}Easy}$	</code>
0341	Flatten Nested List Iterator	${\color{orange}Medium}$	</code>
0342	Power of Four	${\color{green}Easy}$	</code>
0343	Integer Break	${\color{orange}Medium}$	</code>
0344	Reverse String	${\color{green}Easy}$	</code>
0345	Reverse Vowels of a String	${\color{green}Easy}$	</code>
0347	Top K Frequent Elements	${\color{orange}Medium}$	</code>
0349	Intersection of Two Arrays	${\color{green}Easy}$	</code>
0350	Intersection of Two Arrays II	${\color{green}Easy}$	</code>
0357	Count Numbers with Unique Digits	${\color{orange}Medium}$	</code>
0371	Sum of Two Integers	${\color{orange}Medium}$	</code>
0374	Guess Number Higher or Lower	${\color{green}Easy}$	</code>
0378	Kth Smallest Element in a Sorted Matrix	${\color{orange}Medium}$	</code>
0380	Insert Delete GetRandom O(1)	${\color{orange}Medium}$	</code>
0383	Ransom Note	${\color{green}Easy}$	</code>
0387	First Unique Character in a String	${\color{green}Easy}$	</code>
0389	Find the Difference	${\color{green}Easy}$	</code>
0392	Is Subsequence	${\color{green}Easy}$	</code>
0394	Decode String	${\color{orange}Medium}$	</code>
0401	Binary Watch	${\color{green}Easy}$	</code>
0409	Longest Palindrome	${\color{green}Easy}$	</code>
0412	Fizz Buzz	${\color{green}Easy}$	</code>
0415	Add Strings	${\color{green}Easy}$	</code>
0419	Battleships in a Board	${\color{orange}Medium}$	</code>
0435	Non-overlapping Intervals	${\color{orange}Medium}$	</code>
0442	Find All Duplicates in an Array	${\color{orange}Medium}$	</code>
0443	String Compression	${\color{orange}Medium}$	</code>
0445	Add Two Numbers II	${\color{orange}Medium}$	</code>
0448	Find All Numbers Disappeared in an Array	${\color{green}Easy}$	</code>
0451	Sort Characters By Frequency	${\color{orange}Medium}$	</code>
0452	Minimum Number of Arrows to Burst Balloons	${\color{orange}Medium}$	</code>
0459	Repeated Substring Pattern	${\color{green}Easy}$	</code>

0501 - 0750

Num	Task name	Difficulty	Code
0463	Island Perimeter	${\color{green}Easy}$	</code>
0468	Validate IP Address	${\color{orange}Medium}$	</code>
0476	Number Complement	${\color{green}Easy}$	</code>
0482	License Key Formatting	${\color{green}Easy}$	</code>
0492	Construct the Rectangle	${\color{green}Easy}$	</code>
0498	Diagonal Traverse	${\color{orange}Medium}$	</code>
0504	Base 7	${\color{green}Easy}$	</code>
0506	Relative Ranks	${\color{green}Easy}$	</code>
0509	Fibonacci Number	${\color{green}Easy}$	</code>
0511	Game Play Analysis I	${\color{green}Easy}$	</code>
0515	Find Largest Value in Each Tree Row	${\color{orange}Medium}$	</code>
0518	Coin Change II	${\color{orange}Medium}$	</code>
0541	Reverse String II	${\color{green}Easy}$	</code>
0547	Number of Provinces	${\color{orange}Medium}$	</code>
0557	Reverse Words in a String III	${\color{green}Easy}$	</code>
0566	Reshape the Matrix	${\color{green}Easy}$	</code>
0576	Out of Boundary Paths	${\color{orange}Medium}$	</code>
0584	Find Customer Referee	${\color{green}Easy}$	</code>
0586	Customer Placing the Largest Number of Orders	${\color{green}Easy}$	</code>
0592	Fraction Addition and Subtraction	${\color{orange}Medium}$	</code>
0594	Longest Harmonious Subsequence	${\color{green}Easy}$	</code>
0595	Big Countries	${\color{green}Easy}$	</code>
0598	Range Addition II	${\color{green}Easy}$	</code>
0599	Minimum Index Sum of Two Lists	${\color{green}Easy}$	</code>
0605	Can Place Flowers	${\color{green}Easy}$	</code>
0606	Construct String from Binary Tree	${\color{orange}Medium}$	</code>
0607	Sales Person	${\color{green}Easy}$	</code>
0608	Tree Node	${\color{orange}Medium}$	</code>
0610	Triangle Judgement	${\color{green}Easy}$	</code>
0620	Not Boring Movies	${\color{green}Easy}$	</code>
0627	Swap Salary	${\color{green}Easy}$	</code>
0628	Maximum Product of Three Numbers	${\color{green}Easy}$	</code>
0633	Sum of Square Numbers	${\color{orange}Medium}$	</code>
0645	Set Mismatch	${\color{green}Easy}$	</code>
0646	Maximum Length of Pair Chain	${\color{orange}Medium}$	</code>
0649	Dota2 Senate	${\color{orange}Medium}$	</code>
0661	Image Smoother	${\color{green}Easy}$	</code>
0670	Maximum Swap	${\color{orange}Medium}$	</code>
0682	Baseball Game	${\color{green}Easy}$	</code>
0700	Search in a Binary Search Tree	${\color{green}Easy}$	</code>
0703	Kth Largest Element in a Stream	${\color{green}Easy}$	</code>
0706	Design HashMap	${\color{green}Easy}$	</code>
0710	Random Pick with Blacklist	${\color{red}Hard}$	</code>
0714	Best Time to Buy and Sell Stock with Transaction Fee	${\color{orange}Medium}$	</code>
0724	Find Pivot Index	${\color{green}Easy}$	</code>
0728	Self Dividing Numbers	${\color{green}Easy}$	</code>

0751 - 1000

Num	Task name	Difficulty	Code
0735	Asteroid Collision	${\color{orange}Medium}$	</code>
0739	Daily Temperatures	${\color{orange}Medium}$	</code>
0746	Min Cost Climbing Stairs	${\color{green}Easy}$	</code>
0766	Toeplitz Matrix	${\color{green}Easy}$	</code>
0767	Reorganize String	${\color{orange}Medium}$	</code>
0779	K-th Symbol in Grammar	${\color{orange}Medium}$	</code>
0788	Rotated Digits	${\color{orange}Medium}$	</code>
0790	Domino and Tromino Tiling	${\color{orange}Medium}$	</code>
0791	Custom Sort String	${\color{orange}Medium}$	</code>
0796	Rotate String	${\color{green}Easy}$	</code>
0806	Number of Lines To Write String	${\color{green}Easy}$	</code>
0826	Most Profit Assigning Work	${\color{orange}Medium}$	</code>
0830	Positions of Large Groups	${\color{green}Easy}$	</code>
0832	Flipping an Image	${\color{green}Easy}$	</code>
0836	Rectangle Overlap	${\color{green}Easy}$	</code>
0840	Magic Squares In Grid	${\color{orange}Medium}$	</code>
0841	Keys and Rooms	${\color{orange}Medium}$	</code>
0844	Backspace String Compare	${\color{green}Easy}$	</code>
0852	Peak Index in a Mountain Array	${\color{orange}Medium}$	</code>
0860	Lemonade Change	${\color{green}Easy}$	</code>
0867	Transpose Matrix	${\color{green}Easy}$	</code>
0872	Leaf-Similar Trees	${\color{green}Easy}$	</code>
0875	Koko Eating Bananas	${\color{orange}Medium}$	</code>
0876	Middle of the Linked List	${\color{green}Easy}$	</code>
0885	Spiral Matrix III	${\color{orange}Medium}$	</code>
0896	Monotonic Array	${\color{green}Easy}$	</code>
0901	Online Stock Span	${\color{orange}Medium}$	</code>
0905	Sort Array By Parity	${\color{green}Easy}$	</code>
0914	X of a Kind in a Deck of Cards	${\color{green}Easy}$	</code>
0921	Minimum Add to Make Parentheses Valid	${\color{orange}Medium}$	</code>
0931	Minimum Falling Path Sum	${\color{orange}Medium}$	</code>
0933	Number of Recent Calls	${\color{green}Easy}$	</code>
0935	Knight Dialer	${\color{orange}Medium}$	</code>
0938	Range Sum of BST	${\color{green}Easy}$	</code>
0945	Minimum Increment to Make Array Unique	${\color{orange}Medium}$	</code>
0985	Sum of Even Numbers After Queries	${\color{orange}Medium}$	</code>

1001 - 1250

Num	Task name	Difficulty	Code
0994	Rotting Oranges	${\color{orange}Medium}$	</code>
1002	Find Common Characters	${\color{green}Easy}$	</code>
1026	Maximum Difference Between Node and Ancestor	${\color{orange}Medium}$	</code>
1030	Matrix Cells in Distance Order	${\color{green}Easy}$	</code>
1047	Remove All Adjacent Duplicates In String	${\color{green}Easy}$	</code>
1050	Actors and Directors Who Cooperated At Least Three Times	${\color{green}Easy}$	</code>
1051	Height Checker	${\color{green}Easy}$	</code>
1071	Greatest Common Divisor of Strings	${\color{green}Easy}$	</code>
1084	Sales Analysis III	${\color{green}Easy}$	</code>
1122	Relative Sort Array	${\color{green}Easy}$	</code>
1137	N-th Tribonacci Number	${\color{green}Easy}$	</code>
1141	User Activity for the Past 30 Days I	${\color{green}Easy}$	</code>
1143	Longest Common Subsequence	${\color{orange}Medium}$	</code>
1148	Article Views I	${\color{green}Easy}$	</code>
1155	Number of Dice Rolls With Target Sum	${\color{orange}Medium}$	</code>
1158	Market Analysis I	${\color{orange}Medium}$	</code>
1160	Find Words That Can Be Formed by Characters	${\color{green}Easy}$	</code>
1161	Maximum Level Sum of a Binary Tree	${\color{orange}Medium}$	</code>
1185	Day of the Week	${\color{green}Easy}$	</code>
1207	Unique Number of Occurrences	${\color{green}Easy}$	</code>
1209	Remove All Adjacent Duplicates in String II	${\color{orange}Medium}$	</code>
1250	Check If It Is a Good Array	${\color{red}Hard}$	</code>

1251 - 1500

Num	Task name	Difficulty	Code
1252	Cells with Odd Values in a Matrix	${\color{green}Easy}$	</code>
1260	Shift 2D Grid	${\color{green}Easy}$	</code>
1266	Minimum Time Visiting All Points	${\color{green}Easy}$	</code>
1275	Find Winner on a Tic Tac Toe Game	${\color{green}Easy}$	</code>
1281	Subtract the Product and Sum of Digits of an Integer	${\color{green}Easy}$	</code>
1282	Group the People Given the Group Size They Belong To	${\color{orange}Medium}$	</code>
1287	Element Appearing More Than 25% In Sorted Array	${\color{green}Easy}$	</code>
1289	Minimum Falling Path Sum II	${\color{red}Hard}$	</code>
1290	Convert Binary Number in a Linked List to Integer	${\color{green}Easy}$	</code>
1291	Sequential Digits	${\color{orange}Medium}$	</code>
1295	Find Numbers with Even Number of Digits	${\color{green}Easy}$	</code>
1314	Matrix Block Sum	${\color{orange}Medium}$	</code>
1318	Minimum Flips to Make a OR b Equal to c	${\color{orange}Medium}$	</code>
1323	Maximum 69 Number	${\color{green}Easy}$	</code>
1327	List the Products Ordered in a Period	${\color{green}Easy}$	</code>
1331	Rank Transform of an Array	${\color{green}Easy}$	</code>
1335	Minimum Difficulty of a Job Schedule	${\color{red}Hard}$	</code>
1337	The K Weakest Rows in a Matrix	${\color{green}Easy}$	</code>
1346	Check If N and Its Double Exist	${\color{green}Easy}$	</code>
1347	Minimum Number of Steps to Make Two Strings Anagram	${\color{orange}Medium}$	</code>
1351	Count Negative Numbers in a Sorted Matrix	${\color{green}Easy}$	</code>
1356	Sort Integers by The Number of 1 Bits	${\color{green}Easy}$	</code>
1361	Validate Binary Tree Nodes	${\color{orange}Medium}$	</code>
1365	How Many Numbers Are Smaller Than the Current Number	${\color{green}Easy}$	</code>
1380	Lucky Numbers in a Matrix	${\color{green}Easy}$	</code>
1381	Design a Stack With Increment Operation	${\color{orange}Medium}$	</code>
1393	Capital Gain/Loss	${\color{orange}Medium}$	</code>
1404	Number of Steps to Reduce a Number in Binary Representation to One	${\color{orange}Medium}$	</code>
1407	Top Travellers	${\color{green}Easy}$	</code>
1408	String Matching in an Array	${\color{green}Easy}$	</code>
1422	Maximum Score After Splitting a String	${\color{green}Easy}$	</code>
1424	Diagonal Traverse II	${\color{orange}Medium}$	</code>
1431	Kids With the Greatest Number of Candies	${\color{green}Easy}$	</code>
1432	Max Difference You Can Get From Changing an Integer	${\color{orange}Medium}$	</code>
1436	Destination City	${\color{green}Easy}$	</code>
1441	Build an Array With Stack Operations	${\color{orange}Medium}$	</code>
1448	Count Good Nodes in Binary Tree	${\color{orange}Medium}$	</code>
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	${\color{green}Easy}$	</code>
1464	Maximum Product of Two Elements in an Array	${\color{green}Easy}$	</code>
1475	Final Prices With a Special Discount in a Shop	${\color{green}Easy}$	</code>
1480	Running Sum of 1d Array	${\color{green}Easy}$	</code>
1481	Least Number of Unique Integers after K Removals	${\color{orange}Medium}$	</code>
1484	Group Sold Products By The Date	${\color{green}Easy}$	</code>

1501 - 1750

Num	Task name	Difficulty	Code
1496	Path Crossing	${\color{green}Easy}$	</code>
1512	Number of Good Pairs	${\color{green}Easy}$	</code>
1517	Find Users With Valid E-Mails	${\color{green}Easy}$	</code>
1518	Water Bottles	${\color{green}Easy}$	</code>
1527	Patients With a Condition	${\color{green}Easy}$	</code>
1531	String Compression II	${\color{red}Hard}$	</code>
1544	Make The String Great	${\color{green}Easy}$	</code>
1550	Three Consecutive Odds	${\color{green}Easy}$	</code>
1561	Maximum Number of Coins You Can Get	${\color{orange}Medium}$	</code>
1572	Matrix Diagonal Sum	${\color{green}Easy}$	</code>
1578	Minimum Time to Make Rope Colorful	${\color{orange}Medium}$	</code>
1581	Customer Who Visited but Did Not Make Any Transactions	${\color{green}Easy}$	</code>
1582	Special Positions in a Binary Matrix	${\color{green}Easy}$	</code>
1587	Bank Account Summary II	${\color{green}Easy}$	</code>
1598	Crawler Log Folder	${\color{green}Easy}$	</code>
1608	Special Array With X Elements Greater Than or Equal X	${\color{green}Easy}$	</code>
1614	Maximum Nesting Depth of the Parentheses	${\color{green}Easy}$	</code>
1624	Largest Substring Between Two Equal Characters	${\color{green}Easy}$	</code>
1630	Arithmetic Subarrays	${\color{orange}Medium}$	</code>
1636	Sort Array by Increasing Frequency	${\color{green}Easy}$	</code>
1637	Widest Vertical Area Between Two Points Containing No Points	${\color{green}Easy}$	</code>
1647	Minimum Deletions to Make Character Frequencies Unique	${\color{orange}Medium}$	</code>
1652	Defuse the Bomb	${\color{green}Easy}$	</code>
1657	Determine if Two Strings Are Close	${\color{orange}Medium}$	</code>
1662	Check If Two String Arrays are Equivalent	${\color{green}Easy}$	</code>
1667	Fix Names in a Table	${\color{green}Easy}$	</code>
1669	Merge In Between Linked Lists	${\color{orange}Medium}$	</code>
1679	Max Number of K-Sum Pairs	${\color{orange}Medium}$	</code>
1680	Concatenation of Consecutive Binary Numbers	${\color{orange}Medium}$	</code>
1688	Count of Matches in Tournament	${\color{green}Easy}$	</code>
1693	Daily Leads and Partners	${\color{green}Easy}$	</code>
1700	Number of Students Unable to Eat Lunch	${\color{green}Easy}$	</code>
1704	Determine if String Halves Are Alike	${\color{green}Easy}$	</code>
1716	Calculate Money in Leetcode Bank	${\color{green}Easy}$	</code>
1720	Decode XORed Array	${\color{green}Easy}$	</code>
1729	Find Followers Count	${\color{green}Easy}$	</code>
1732	Find the Highest Altitude	${\color{green}Easy}$	</code>
1741	Find Total Time Spent by Each Employee	${\color{green}Easy}$	</code>

1751 - 2000

Num	Task name	Difficulty	Code
1750	Minimum Length of String After Deleting Similar Ends	${\color{orange}Medium}$	</code>
1752	Check if Array Is Sorted and Rotated	${\color{green}Easy}$	</code>
1757	Recyclable and Low Fat Products	${\color{green}Easy}$	</code>
1758	Minimum Changes To Make Alternating Binary String	${\color{green}Easy}$	</code>
1768	Merge Strings Alternately	${\color{green}Easy}$	</code>
1773	Count Items Matching a Rule	${\color{green}Easy}$	</code>
1780	Check if Number is a Sum of Powers of Three	${\color{orange}Medium}$	</code>
1790	Check if One String Swap Can Make Strings Equal	${\color{green}Easy}$	</code>
1791	Find Center of Star Graph	${\color{green}Easy}$	</code>
1795	Rearrange Products Table	${\color{green}Easy}$	</code>
1800	Maximum Ascending Subarray Sum	${\color{green}Easy}$	</code>
1814	Count Nice Pairs in an Array	${\color{orange}Medium}$	</code>
1823	Find the Winner of the Circular Game	${\color{orange}Medium}$	</code>
1829	Maximum XOR for Each Query	${\color{orange}Medium}$	</code>
1845	Seat Reservation Manager	${\color{orange}Medium}$	</code>
1846	Maximum Element After Decreasing and Rearranging	${\color{orange}Medium}$	</code>
1873	Calculate Special Bonus	${\color{green}Easy}$	</code>
1877	Minimize Maximum Pair Sum in Array	${\color{orange}Medium}$	</code>
1890	The Latest Login in 2020	${\color{green}Easy}$	</code>
1897	Redistribute Characters to Make All Strings Equal	${\color{green}Easy}$	</code>
1903	Largest Odd Number in String	${\color{green}Easy}$	</code>
1910	Remove All Occurrences of a Substring	${\color{orange}Medium}$	</code>
1913	Maximum Product Difference Between Two Pairs	${\color{green}Easy}$	</code>
1920	Build Array from Permutation	${\color{green}Easy}$	</code>
1926	Nearest Exit from Entrance in Maze	${\color{orange}Medium}$	</code>
1929	Concatenation of Array	${\color{green}Easy}$	</code>
1945	Sum of Digits of String After Convert	${\color{green}Easy}$	</code>
1952	Three Divisors	${\color{green}Easy}$	</code>
1957	Delete Characters to Make Fancy String	${\color{green}Easy}$	</code>
1965	Employees With Missing Information	${\color{green}Easy}$	</code>
1979	Find Greatest Common Divisor of Array	${\color{green}Easy}$	</code>

2001 - 2250

Num	Task name	Difficulty	Code
1980	Find Unique Binary String	${\color{orange}Medium}$	</code>
2000	Reverse Prefix of Word	${\color{green}Easy}$	</code>
2001	Number of Pairs of Interchangeable Rectangles	${\color{orange}Medium}$	</code>
2016	Maximum Difference Between Increasing Elements	${\color{green}Easy}$	</code>
2022	Convert 1D Array Into 2D Array	${\color{green}Easy}$	</code>
2028	Find Missing Observations	${\color{orange}Medium}$	</code>
2037	Minimum Number of Moves to Seat Everyone	${\color{green}Easy}$	</code>
2038	Remove Colored Pieces if Both Neighbors are the Same Color	${\color{orange}Medium}$	</code>
2053	Kth Distinct String in an Array	${\color{green}Easy}$	</code>
2073	Time Needed to Buy Tickets	${\color{green}Easy}$	</code>
2094	Finding 3-Digit Even Numbers	${\color{green}Easy}$	</code>
2095	Delete the Middle Node of a Linked List	${\color{orange}Medium}$	</code>
2108	Find First Palindromic String in the Array	${\color{green}Easy}$	</code>
2109	Adding Spaces to a String	${\color{orange}Medium}$	</code>
2119	A Number After a Double Reversal	${\color{green}Easy}$	</code>
2125	Number of Laser Beams in a Bank	${\color{orange}Medium}$	</code>
2130	Maximum Twin Sum of a Linked List	${\color{orange}Medium}$	</code>
2133	Check if Every Row and Column Contains All Numbers	${\color{green}Easy}$	</code>
2147	Number of Ways to Divide a Long Corridor	${\color{red}Hard}$	</code>
2149	Rearrange Array Elements by Sign	${\color{orange}Medium}$	</code>
2161	Partition Array According to Given Pivot	${\color{orange}Medium}$	</code>
2181	Merge Nodes in Between Zeros	${\color{orange}Medium}$	</code>
2191	Sort the Jumbled Numbers	${\color{orange}Medium}$	</code>
2194	Cells in a Range on an Excel Sheet	${\color{green}Easy}$	</code>
2206	Divide Array Into Equal Pairs	${\color{green}Easy}$	</code>
2215	Find the Difference of Two Arrays	${\color{green}Easy}$	</code>
2221	Find Triangular Sum of an Array	${\color{orange}Medium}$	</code>
2225	Find Players With Zero or One Losses	${\color{orange}Medium}$	</code>
2235	Add Two Integers	${\color{green}Easy}$	</code>
2243	Calculate Digit Sum of a String	${\color{green}Easy}$	</code>

2251 - 2500

Num	Task name	Difficulty	Code
2257	Count Unguarded Cells in the Grid	${\color{orange}Medium}$	</code>
2264	Largest 3-Same-Digit Number in String	${\color{green}Easy}$	</code>
2265	Count Nodes Equal to Average of Subtree	${\color{orange}Medium}$	</code>
2270	Number of Ways to Split Array	${\color{orange}Medium}$	</code>
2275	Largest Combination With Bitwise AND Greater Than Zero	${\color{orange}Medium}$	</code>
2293	Min Max Game	${\color{green}Easy}$	</code>
2300	Successful Pairs of Spells and Potions	${\color{orange}Medium}$	</code>
2319	Check if Matrix Is X-Matrix	${\color{green}Easy}$	</code>
2326	Spiral Matrix IV	${\color{orange}Medium}$	</code>
2336	Smallest Number in Infinite Set	${\color{orange}Medium}$	</code>
2342	Max Sum of a Pair With Equal Sum of Digits	${\color{orange}Medium}$	</code>
2347	Best Poker Hand	${\color{green}Easy}$	</code>
2352	Equal Row and Column Pairs	${\color{orange}Medium}$	</code>
2353	Design a Food Rating System	${\color{orange}Medium}$	</code>
2358	Maximum Number of Groups Entering a Competition	${\color{orange}Medium}$	</code>
2364	Count Number of Bad Pairs	${\color{orange}Medium}$	</code>
2373	Largest Local Values in a Matrix	${\color{green}Easy}$	</code>
2379	Minimum Recolors to Get K Consecutive Black Blocks	${\color{green}Easy}$	</code>
2385	Amount of Time for Binary Tree to Be Infected	${\color{orange}Medium}$	</code>
2390	Removing Stars From a String	${\color{orange}Medium}$	</code>
2404	Most Frequent Even Element	${\color{green}Easy}$	</code>
2413	Smallest Even Multiple	${\color{green}Easy}$	</code>
2418	Sort the People	${\color{green}Easy}$	</code>
2425	Bitwise XOR of All Pairings	${\color{orange}Medium}$	</code>
2427	Number of Common Factors	${\color{green}Easy}$	</code>
2429	Minimize XOR	${\color{orange}Medium}$	</code>
2433	Find The Original Array of Prefix Xor	${\color{orange}Medium}$	</code>
2441	Largest Positive Integer That Exists With Its Negative	${\color{green}Easy}$	</code>
2460	Apply Operations to an Array	${\color{green}Easy}$	</code>
2469	Convert the Temperature	${\color{green}Easy}$	</code>

2501 - 2750

Num	Task name	Difficulty	Code
2481	Minimum Cuts to Divide a Circle	${\color{green}Easy}$	</code>
2482	Difference Between Ones and Zeros in Row and Column	${\color{orange}Medium}$	</code>
2485	Find the Pivot Integer	${\color{green}Easy}$	</code>
2490	Circular Sentence	${\color{green}Easy}$	</code>
2491	Divide Players Into Teams of Equal Skill	${\color{orange}Medium}$	</code>
2523	Closest Prime Numbers in Range	${\color{orange}Medium}$	</code>
2525	Categorize Box According to Criteria	${\color{green}Easy}$	</code>
2529	Maximum Count of Positive Integer and Negative Integer	${\color{green}Easy}$	</code>
2530	Maximal Score After Applying K Operations	${\color{orange}Medium}$	</code>
2540	Minimum Common Value	${\color{green}Easy}$	</code>
2542	Maximum Subsequence Score	${\color{orange}Medium}$	</code>
2579	Count Total Number of Colored Cells	${\color{orange}Medium}$	</code>
2583	Kth Largest Sum in a Binary Tree	${\color{orange}Medium}$	</code>
2596	Check Knight Tour Configuration	${\color{orange}Medium}$	</code>
2601	Prime Subtraction Operation	${\color{orange}Medium}$	</code>
2605	Form Smallest Number From Two Digit Arrays	${\color{green}Easy}$	</code>
2610	Convert an Array Into a 2D Array With Conditions	${\color{orange}Medium}$	</code>
2614	Prime In Diagonal	${\color{green}Easy}$	</code>
2639	Find the Width of Columns of a Grid	${\color{green}Easy}$	</code>
2643	Row With Maximum Ones	${\color{green}Easy}$	</code>
2660	Determine the Winner of a Bowling Game	${\color{green}Easy}$	</code>
2661	First Completely Painted Row or Column	${\color{orange}Medium}$	</code>
2678	Number of Senior Citizens	${\color{green}Easy}$	</code>
2679	Sum in a Matrix	${\color{orange}Medium}$	</code>
2696	Minimum String Length After Removing Substrings	${\color{green}Easy}$	</code>
2706	Buy Two Chocolates	${\color{green}Easy}$	</code>
2716	Minimize String Length	${\color{green}Easy}$	</code>
2718	Sum of Matrix After Queries	${\color{orange}Medium}$	</code>

2751 - 3000

Num	Task name	Difficulty	Code
2769	Find the Maximum Achievable Number	${\color{green}Easy}$	</code>
2778	Sum of Squares of Special Elements	${\color{green}Easy}$	</code>
2785	Sort Vowels in a String	${\color{orange}Medium}$	</code>
2816	Double a Number Represented as a Linked List	${\color{orange}Medium}$	</code>
2825	Make String a Subsequence Using Cyclic Increments	${\color{orange}Medium}$	</code>
2843	Count Symmetric Integers	${\color{green}Easy}$	</code>
2864	Maximum Odd Binary Number	${\color{green}Easy}$	</code>
2870	Minimum Number of Operations to Make Array Empty	${\color{orange}Medium}$	</code>
2894	Divisible and Non-divisible Sums Difference	${\color{green}Easy}$	</code>
2914	Minimum Number of Changes to Make Binary String Beautiful	${\color{orange}Medium}$	</code>
2918	Minimum Equal Sum of Two Arrays After Replacing Zeros	${\color{orange}Medium}$	</code>
2960	Count Tested Devices After Test Operations	${\color{green}Easy}$	</code>
2965	Find Missing and Repeated Values	${\color{green}Easy}$	</code>
2966	Divide Array Into Arrays With Max Difference	${\color{orange}Medium}$	</code>
2971	Find Polygon With the Largest Perimeter	${\color{orange}Medium}$	</code>

3001 - 3250

Num	Task name	Difficulty	Code
3005	Count Elements With Maximum Frequency	${\color{green}Easy}$	</code>
3011	Find if Array Can Be Sorted	${\color{orange}Medium}$	</code>
3016	Minimum Number of Pushes to Type Word II	${\color{orange}Medium}$	</code>
3021	Alice and Bob Playing Flower Game	${\color{orange}Medium}$	</code>
3066	Minimum Operations to Exceed Threshold Value II	${\color{orange}Medium}$	</code>
3075	Maximize Happiness of Selected Children	${\color{orange}Medium}$	</code>
3110	Score of a String	${\color{green}Easy}$	</code>
3120	Count the Number of Special Characters I	${\color{green}Easy}$	</code>
3136	Valid Word	${\color{green}Easy}$	</code>
3151	Special Array I	${\color{green}Easy}$	</code>
3163	String Compression III	${\color{orange}Medium}$	</code>

3251 - 3500

Num	Task name	Difficulty	Code
3174	Clear Digits	${\color{green}Easy}$	</code>
3191	Minimum Operations to Make Binary Array Elements Equal to One I	${\color{orange}Medium}$	</code>
3195	Find the Minimum Area to Cover All Ones I	${\color{orange}Medium}$	</code>
3223	Minimum Length of String After Operations	${\color{orange}Medium}$	</code>
3264	Final Array State After K Multiplication Operations I	${\color{green}Easy}$	</code>
3396	Minimum Number of Operations to Make Elements in Array Distinct	${\color{green}Easy}$	</code>
3446	Sort Matrix by Diagonals	${\color{orange}Medium}$	</code>

3501 - 3750

Num	Task name	Difficulty	Code
3516	Find Closest Person	${\color{green}Easy}$	</code>