LeetCode

My LeetCode Profile

Problem Solving Record

#	Title	Solution	Difficulty
4	Median of Two Sorted Arrays	JavaScript	Hard
10	Regular Expression Matching	JavaScript	Hard
23	Merge k Sorted Lists	JavaScript	Hard
25	Reverse Nodes in k-Group	JavaScript	Hard
30	Substring with Concatenation of All Words	JavaScript	Hard
32	Longest Valid Parentheses	JavaScript	Hard
37	Sudoku Solver	JavaScript	Hard
41	First Missing Positive	JavaScript	Hard
42	Trapping Rain Water	JavaScript	Hard
44	Wildcard Matching	JavaScript	Hard
51	N-Queens	JavaScript	Hard
52	N-Queens II	JavaScript	Hard
60	Permutation Sequence	JavaScript	Hard
65	Valid Number	JavaScript	Hard
68	Text Justification	JavaScript	Hard
76	Minimum Window Substring	JavaScript	Hard
78	Subsets	JavaScript	Medium
84	Largest Rectangle in Histogram	JavaScript	Hard
87	Scramble String	JavaScript	Hard
115	Distinct Subsequences	JavaScript	Hard
123	Best Time to Buy and Sell Stock III	JavaScript	Hard
124	Binary Tree Maximum Path Sum	JavaScript	Hard
126	Word Ladder II	JavaScript	Hard
127	Word Ladder	JavaScript	Hard
131	Palindrome Partitioning	JavaScript	Medium
132	Palindrome Partitioning II	JavaScript	Hard
135	Candy	JavaScript	Hard
140	Word Break II	JavaScript	Hard
149	Max Points on a Line	JavaScript	Hard
154	Find Minimum in Rotated Sorted Array II	JavaScript	Hard
174	Dungeon Game	JavaScript	Hard
188	Best Time to Buy and Sell Stock IV	JavaScript	Hard
200	Number of Islands	JavaScript	Medium
212	Word Search II	JavaScript	Hard
214	Shortest Palindrome	JavaScript	Hard
218	The Skyline Problem	JavaScript	Hard
224	Basic Calculator	JavaScript	Hard
233	Number of Digit One	JavaScript	Hard
239	Sliding Window Maximum	JavaScript	Hard
273	Integer to English Words	JavaScript	Hard
282	Expression Add Operators	JavaScript	Hard
295	Find Median from Data Stream	JavaScript	Hard
297	Serialize and Deserialize Binary Tree	JavaScript	Hard
301	Remove Invalid Parentheses	JavaScript	Hard
310	Minimum Height Trees	JavaScript	Medium
312	Burst Balloons	JavaScript	Hard
315	Count of Smaller Numbers After Self	JavaScript	Hard
321	Create Maximum Number	JavaScript	Hard
327	Count of Range Sum	JavaScript	Hard
329	Longest Increasing Path in a Matrix	JavaScript	Hard
330	Patching Array	JavaScript	Hard
332	Reconstruct Itinerary	JavaScript	Hard
335	Self Crossing	JavaScript	Hard
336	Palindrome Pairs	JavaScript	Hard
402	Remove K Digits	JavaScript	Medium
623	Add One Row to Tree	JavaScript	Medium
632	Smallest Range Covering Elements from K Lists	JavaScript	Hard
752	Open the Lock	JavaScript	Medium
815	Bus Routes	JavaScript	Hard
861	Score After Flipping Matrix	JavaScript	Medium
881	Boats to Save People	JavaScript	Medium
895	Maximum Frequency Stack	JavaScript	Hard
950	Reveal Cards In Increasing Order	JavaScript	Medium
1137	N-th Tribonacci Number	JavaScript	Easy
1208	Get Equal Substrings Within Budget	JavaScript	Medium
1219	Path with Maximum Gold	JavaScript	Medium
1235	Maximum Profit in Job Scheduling	JavaScript	Hard
1289	Minimum Falling Path Sum II	JavaScript	Hard
1325	Delete Leaves With a Given Value	JavaScript	Medium
1376	Time Needed to Inform All Employees	JavaScript	Medium
1386	Cinema Seat Allocation	JavaScript	Medium
1387	Sort Integers by The Power Value	JavaScript	Medium
1391	Check if There is a Valid Path in a Grid	JavaScript	Medium
1395	Count Number of Teams	JavaScript	Medium
1396	Design Underground System	JavaScript	Medium
1401	Circle and Rectangle Overlapping	JavaScript	Medium
1404	Number of Steps to Reduce a Number in Binary Representation to One	JavaScript	Medium
1410	HTML Entity Parser	JavaScript	Medium
1414	Find the Minimum Number of Fibonacci Numbers Whose Sum Is K	JavaScript	Medium
1415	The k-th Lexicographical String of All Happy Strings of Length n	JavaScript	Medium
1418	Display Table of Food Orders in a Restaurant	JavaScript	Medium
1419	Minimum Number of Frogs Croaking	JavaScript	Medium
1423	Maximum Points You Can Obtain from Cards	JavaScript	Medium
1424	Diagonal Traverse II	JavaScript	Medium
1432	Max Difference You Can Get From Changing an Integer	JavaScript	Medium
1433	Check If a String Can Break Another String	JavaScript	Medium
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	JavaScript	Medium
1442	Count Triplets That Can Form Two Arrays of Equal XOR	JavaScript	Medium
1443	Minimum Time to Collect All Apples in a Tree	JavaScript	Medium
1447	Simplified Fractions	JavaScript	Medium
1448	Count Good Nodes in Binary Tree	JavaScript	Medium
1451	Rearrange Words in a Sentence	JavaScript	Medium
1452	People Whose List of Favorite Companies Is Not a Subset of Another List	JavaScript	Medium
1456	Maximum Number of Vowels in a Substring of Given Length	JavaScript	Medium
1457	Pseudo-Palindromic Paths in a Binary Tree	JavaScript	Medium
1461	Check If a String Contains All Binary Codes of Size K	JavaScript	Medium
1462	Course Schedule IV	JavaScript	Medium
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	JavaScript	Medium
1466	Reorder Routes to Make All Paths Lead to the City Zero	JavaScript	Medium
1471	The k Strongest Values in an Array	JavaScript	Medium
1472	Design Browser History	JavaScript	Medium
1476	Subrectangle Queries	JavaScript	Medium
1477	Find Two Non-overlapping Sub-arrays Each With Target Sum	JavaScript	Medium
1481	Least Number of Unique Integers after K Removals	JavaScript	Medium
1482	Minimum Number of Days to Make m Bouquets	JavaScript	Medium
1487	Making File Names Unique	JavaScript	Medium
1488	Avoid Flood in The City	JavaScript	Medium
1492	The kth Factor of n	JavaScript	Medium
1493	Longest Subarray of 1's After Deleting One Element	JavaScript	Medium
1497	Check If Array Pairs Are Divisible by k	JavaScript	Medium
1498	Number of Subsequences That Satisfy the Given Sum Condition	JavaScript	Medium
1503	Last Moment Before All Ants Fall Out of a Plank	JavaScript	Medium
1504	Count Submatrices With All Ones	JavaScript	Medium
1508	Range Sum of Sorted Subarray Sums	JavaScript	Medium
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	JavaScript	Medium
1513	Number of Substrings With Only 1s	JavaScript	Medium
1514	Path with Maximum Probability	JavaScript	Medium
1519	Number of Nodes in the Sub-Tree With the Same Label	JavaScript	Medium
1524	Number of Sub-arrays With Odd Sum	JavaScript	Medium
1525	Number of Good Ways to Split a String	JavaScript	Medium
1529	Minimum Suffix Flips	JavaScript	Medium
1530	Number of Good Leaf Nodes Pairs	JavaScript	Medium
1535	Find the Winner of an Array Game	JavaScript	Medium
1536	Minimum Swaps to Arrange a Binary Grid	JavaScript	Medium
1540	Can Convert String in K Moves	JavaScript	Medium
1541	Minimum Insertions to Balance a Parentheses String	JavaScript	Medium
1545	Find Kth Bit in Nth Binary String	JavaScript	Medium
1546	Maximum Number of Non-Overlapping Subarrays With Sum Equals Target	JavaScript	Medium
1551	Minimum Operations to Make Array Equal	JavaScript	Medium
1552	Magnetic Force Between Two Balls	JavaScript	Medium
1557	Minimum Number of Vertices to Reach All Nodes	JavaScript	Medium
1558	Minimum Numbers of Function Calls to Make Target Array	JavaScript	Medium
1559	Detect Cycles in 2D Grid	JavaScript	Medium
1561	Maximum Number of Coins You Can Get	JavaScript	Medium
1562	Find Latest Group of Size M	JavaScript	Medium
1567	Maximum Length of Subarray With Positive Product	JavaScript	Medium
1573	Number of Ways to Split a String	JavaScript	Medium
1574	Shortest Subarray to be Removed to Make Array Sorted	JavaScript	Medium
1577	Number of Ways Where Square of Number Is Equal to Product of Two Numbers	JavaScript	Medium
1578	Minimum Time to Make Rope Colorful	JavaScript	Medium
1583	Count Unhappy Friends	JavaScript	Medium
1584	Min Cost to Connect All Points	JavaScript	Medium
1589	Maximum Sum Obtained of Any Permutation	JavaScript	Medium
1590	Make Sum Divisible by P	JavaScript	Medium
1593	Split a String Into the Max Number of Unique Substrings	JavaScript	Medium
1594	Maximum Non Negative Product in a Matrix	JavaScript	Medium
1599	Maximum Profit of Operating a Centennial Wheel	JavaScript	Medium
1600	Throne Inheritance	JavaScript	Medium
1604	Alert Using Same Key-Card Three or More Times in a One Hour Period	JavaScript	Medium
1605	Find Valid Matrix Given Row and Column Sums	JavaScript	Medium
1608	Special Array With X Elements Greater Than or Equal X	JavaScript	Easy
1609	Even Odd Tree	JavaScript	Medium
1615	Maximal Network Rank	JavaScript	Medium
1616	Split Two Strings to Make Palindrome	JavaScript	Medium
1620	Coordinate With Maximum Network Quality	JavaScript	Medium
1621	Number of Sets of K Non-Overlapping Line Segments	JavaScript	Medium
1625	Lexicographically Smallest String After Applying Operations	JavaScript	Medium
1626	Best Team With No Conflicts	JavaScript	Medium
1630	Arithmetic Subarrays	JavaScript	Medium
1631	Path With Minimum Effort	JavaScript	Medium
1637	Widest Vertical Area Between Two Points Containing No Points	JavaScript	Medium
1638	Count Substrings That Differ by One Character	JavaScript	Medium
1641	Count Sorted Vowel Strings	JavaScript	Medium
1642	Furthest Building You Can Reach	JavaScript	Medium
1647	Minimum Deletions to Make Character Frequencies Unique	JavaScript	Medium
1648	Sell Diminishing-Valued Colored Balls	JavaScript	Medium
1653	Minimum Deletions to Make String Balanced	JavaScript	Medium
1654	Minimum Jumps to Reach Home	JavaScript	Medium
1657	Determine if Two Strings Are Close	JavaScript	Medium
1658	Minimum Operations to Reduce X to Zero	JavaScript	Medium
1663	Smallest String With A Given Numeric Value	JavaScript	Medium
1664	Ways to Make a Fair Array	JavaScript	Medium
1669	Merge In Between Linked Lists	JavaScript	Medium
1670	Design Front Middle Back Queue	JavaScript	Medium
1673	Find the Most Competitive Subsequence	JavaScript	Medium
1674	Minimum Moves to Make Array Complementary	JavaScript	Medium
1679	Max Number of K-Sum Pairs	JavaScript	Medium
1680	Concatenation of Consecutive Binary Numbers	JavaScript	Medium
1685	Sum of Absolute Differences in a Sorted Array	JavaScript	Medium
1686	Stone Game VI	JavaScript	Medium
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	JavaScript	Medium
1690	Stone Game VII	JavaScript	Medium
1695	Maximum Erasure Value	JavaScript	Medium
1696	Jump Game VI	JavaScript	Medium
1700	Number of Students Unable to Eat Lunch	JavaScript	Easy
1701	Average Waiting Time	JavaScript	Medium
1702	Maximum Binary String After Change	JavaScript	Medium
1705	Maximum Number of Eaten Apples	JavaScript	Medium
1706	Where Will the Ball Fall	JavaScript	Medium
1711	Count Good Meals	JavaScript	Medium
1712	Ways to Split Array Into Three Subarrays	JavaScript	Medium
1717	Maximum Score From Removing Substrings	JavaScript	Medium
1718	Construct the Lexicographically Largest Valid Sequence	JavaScript	Medium
1721	Swapping Nodes in a Linked List	JavaScript	Medium
1722	Minimize Hamming Distance After Swap Operations	JavaScript	Medium
1726	Tuple with Same Product	JavaScript	Medium
1727	Largest Submatrix With Rearrangements	JavaScript	Medium
1733	Minimum Number of People to Teach	JavaScript	Medium
1734	Decode XORed Permutation	JavaScript	Medium
1737	Change Minimum Characters to Satisfy One of Three Conditions	JavaScript	Medium
1738	Find Kth Largest XOR Coordinate Value	JavaScript	Medium
1743	Restore the Array From Adjacent Pairs	JavaScript	Medium
1744	Can You Eat Your Favorite Candy on Your Favorite Day?	JavaScript	Medium
1749	Maximum Absolute Sum of Any Subarray	JavaScript	Medium
1750	Minimum Length of String After Deleting Similar Ends	JavaScript	Medium
1753	Maximum Score From Removing Stones	JavaScript	Medium
1754	Largest Merge Of Two Strings	JavaScript	Medium
1759	Count Number of Homogenous Substrings	JavaScript	Medium
1760	Minimum Limit of Balls in a Bag	JavaScript	Medium
1764	Form Array by Concatenating Subarrays of Another Array	JavaScript	Medium
1765	Map of Highest Peak	JavaScript	Medium
1769	Minimum Number of Operations to Move All Balls to Each Box	JavaScript	Medium
1774	Closest Dessert Cost	JavaScript	Medium
1775	Equal Sum Arrays With Minimum Number of Operations	JavaScript	Medium
1780	Check if Number is a Sum of Powers of Three	JavaScript	Medium
1781	Sum of Beauty of All Substrings	JavaScript	Medium
1785	Minimum Elements to Add to Form a Given Sum	JavaScript	Medium
1786	Number of Restricted Paths From First to Last Node	JavaScript	Medium
1792	Maximum Average Pass Ratio	JavaScript	Medium
1797	Design Authentication Manager	JavaScript	Medium
1798	Maximum Number of Consecutive Values You Can Make	JavaScript	Medium
1801	Number of Orders in the Backlog	JavaScript	Medium
1802	Maximum Value at a Given Index in a Bounded Array	JavaScript	Medium
1806	Minimum Number of Operations to Reinitialize a Permutation	JavaScript	Medium
1807	Evaluate the Bracket Pairs of a String	JavaScript	Medium
1813	Sentence Similarity III	JavaScript	Medium
1814	Count Nice Pairs in an Array	JavaScript	Medium
1817	Finding the Users Active Minutes	JavaScript	Medium
1818	Minimum Absolute Sum Difference	JavaScript	Medium
1823	Find the Winner of the Circular Game	JavaScript	Medium
1824	Minimum Sideway Jumps	JavaScript	Medium
1828	Queries on Number of Points Inside a Circle	JavaScript	Medium
1829	Maximum XOR for Each Query	JavaScript	Medium
1833	Maximum Ice Cream Bars	JavaScript	Medium
1834	Single-Threaded CPU	JavaScript	Medium
1838	Frequency of the Most Frequent Element	JavaScript	Medium
1839	Longest Substring Of All Vowels in Order	JavaScript	Medium
1845	Seat Reservation Manager	JavaScript	Medium
1846	Maximum Element After Decreasing and Rearranging	JavaScript	Medium
1849	Splitting a String Into Descending Consecutive Values	JavaScript	Medium
1850	Minimum Adjacent Swaps to Reach the Kth Smallest Number	JavaScript	Medium
1855	Maximum Distance Between a Pair of Values	JavaScript	Medium
1856	Maximum Subarray Min-Product	JavaScript	Medium
1860	Incremental Memory Leak	JavaScript	Medium
1861	Rotating the Box	JavaScript	Medium
1863	Sum of All Subset XOR Totals	JavaScript	Easy
1864	Minimum Number of Swaps to Make the Binary String Alternating	JavaScript	Medium
1865	Finding Pairs With a Certain Sum	JavaScript	Medium
1870	Minimum Speed to Arrive on Time	JavaScript	Medium
1871	Jump Game VII	JavaScript	Medium
1877	Minimize Maximum Pair Sum in Array	JavaScript	Medium
1878	Get Biggest Three Rhombus Sums in a Grid	JavaScript	Medium
1881	Maximum Value after Insertion	JavaScript	Medium
1882	Process Tasks Using Servers	JavaScript	Medium
1884	Egg Drop With 2 Eggs and N Floors	JavaScript	Medium
1887	Reduction Operations to Make the Array Elements Equal	JavaScript	Medium
1888	Minimum Number of Flips to Make the Binary String Alternating	JavaScript	Medium
1894	Find the Student that Will Replace the Chalk	JavaScript	Medium
1895	Largest Magic Square	JavaScript	Medium
1898	Maximum Number of Removable Characters	JavaScript	Medium
1899	Merge Triplets to Form Target Triplet	JavaScript	Medium
1901	Find a Peak Element II	JavaScript	Medium
1904	The Number of Full Rounds You Have Played	JavaScript	Medium
1905	Count Sub Islands	JavaScript	Medium
1906	Minimum Absolute Difference Queries	JavaScript	Medium
1910	Remove All Occurrences of a Substring	JavaScript	Medium
1911	Maximum Alternating Subsequence Sum	JavaScript	Medium
1914	Cyclically Rotating a Grid	JavaScript	Medium
1915	Number of Wonderful Substrings	JavaScript	Medium
1921	Eliminate Maximum Number of Monsters	JavaScript	Medium
1922	Count Good Numbers	JavaScript	Medium
1926	Nearest Exit from Entrance in Maze	JavaScript	Medium
1927	Sum Game	JavaScript	Medium
1930	Unique Length-3 Palindromic Subsequences	JavaScript	Medium
1937	Add Minimum Number of Rungs	JavaScript	Medium
1936	Maximum Number of Points with Cost	JavaScript	Medium
1942	The Number of the Smallest Unoccupied Chair	JavaScript	Medium
1943	Describe the Painting	JavaScript	Medium
1946	Largest Number After Mutating Substring	JavaScript	Medium
1947	Maximum Compatibility Score Sum	JavaScript	Medium
1953	Maximum Number of Weeks for Which You Can Work	JavaScript	Medium
1954	Minimum Garden Perimeter to Collect Enough Apples	JavaScript	Medium
1958	Check if Move is Legal	JavaScript	Medium
1959	Minimum Total Space Wasted With K Resizing Operations	JavaScript	Medium
1962	Remove Stones to Minimize the Total	JavaScript	Medium
1963	Minimum Number of Swaps to Make the String Balanced	JavaScript	Medium
1968	Array With Elements Not Equal to Average of Neighbors	JavaScript	Medium
1969	Minimum Non-Zero Product of the Array Elements	JavaScript	Medium
1975	Maximum Matrix Sum	JavaScript	Medium
1976	Number of Ways to Arrive at Destination	JavaScript	Medium
1980	Find Unique Binary String	JavaScript	Medium
1981	Minimize the Difference Between Target and Chosen Elements	JavaScript	Medium
1985	Find the Kth Largest Integer in the Array	JavaScript	Medium
1986	Minimum Number of Work Sessions to Finish the Tasks	JavaScript	Medium
1992	Find All Groups of Farmland	JavaScript	Medium
1993	Operations on Tree	JavaScript	Medium
1996	The Number of Weak Characters in the Game	JavaScript	Medium
1997	First Day Where You Have Been in All the Rooms	JavaScript	Medium
2001	Number of Pairs of Interchangeable Rectangles	JavaScript	Medium
2002	Maximum Product of the Length of Two Palindromic Subsequences	JavaScript	Medium
2007	Find Original Array From Doubled Array	JavaScript	Medium
2008	Maximum Earnings From Taxi	JavaScript	Medium
2012	Sum of Beauty in the Array	JavaScript	Medium
2013	Detect Squares	JavaScript	Medium
2017	Grid Game	JavaScript	Medium
2018	Check if Word Can Be Placed In Crossword	JavaScript	Medium
2023	Number of Pairs of Strings With Concatenation Equal to Target	JavaScript	Medium
2024	Maximize the Confusion of an Exam	JavaScript	Medium
2028	Find Missing Observations	JavaScript	Medium
2029	Stone Game IX	JavaScript	Medium
2033	Minimum Operations to Make a Uni-Value Grid	JavaScript	Medium
2034	Stock Price Fluctuation	JavaScript	Medium
2037	Minimum Number of Moves to Seat Everyone	JavaScript	Easy
2038	Remove Colored Pieces if Both Neighbors are the Same Color	JavaScript	Medium
2039	The Time When the Network Becomes Idle	JavaScript	Medium
2042	Check if Numbers Are Ascending in a Sentence	JavaScript	Easy
2043	Simple Bank System	JavaScript	Medium
2044	Count Number of Maximum Bitwise-OR Subsets	JavaScript	Medium
2047	Number of Valid Words in a Sentence	JavaScript	Easy
2048	Next Greater Numerically Balanced Number	JavaScript	Medium
2049	Count Nodes With the Highest Score	JavaScript	Medium
2053	Kth Distinct String in an Array	JavaScript	Easy
2054	Two Best Non-Overlapping Events	JavaScript	Medium
2055	Plates Between Candles	JavaScript	Medium
2057	Smallest Index With Equal Value	JavaScript	Easy
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	JavaScript	Medium
2059	Minimum Operations to Convert Number	JavaScript	Medium
2062	Count Vowel Substrings of a String	JavaScript	Easy
2063	Vowels of All Substrings	JavaScript	Medium
2064	Minimized Maximum of Products Distributed to Any Store	JavaScript	Medium
2068	Check Whether Two Strings are Almost Equivalent	JavaScript	Easy
2069	Walking Robot Simulation II	JavaScript	Medium
2070	Most Beautiful Item for Each Query	JavaScript	Medium
2073	Time Needed to Buy Tickets	JavaScript	Easy
2074	Reverse Nodes in Even Length Groups	JavaScript	Medium
2075	Decode the Slanted Ciphertex	JavaScript	Medium
2078	Two Furthest Houses With Different Colors	JavaScript	Easy
2079	Watering Plants	JavaScript	Medium
2080	Range Frequency Queries	JavaScript	Medium
2085	Count Common Words With One Occurrence	JavaScript	Easy
2086	Minimum Number of Food Buckets to Feed the Hamsters	JavaScript	Medium
2087	Minimum Cost Homecoming of a Robot in a Grid	JavaScript	Medium
2089	Find Target Indices After Sorting Array	JavaScript	Easy
2090	K Radius Subarray Averages	JavaScript	Medium
2091	Removing Minimum and Maximum From Array	JavaScript	Medium
2094	Finding 3-Digit Even Numbers	JavaScript	Easy
2095	Delete the Middle Node of a Linked List	JavaScript	Medium
2096	Step-By-Step Directions From a Binary Tree Node to Another	JavaScript	Medium
2099	Find Subsequence of Length K With the Largest Sum	JavaScript	Easy
2100	Find Good Days to Rob the Bank	JavaScript	Medium
2101	Detonate the Maximum Bombs	JavaScript	Medium
2103	Rings and Rods	JavaScript	Easy
2104	Sum of Subarray Ranges	JavaScript	Medium
2105	Watering Plants II	JavaScript	Medium
2108	Find First Palindromic String in the Array	JavaScript	Easy
2331	Evaluate Boolean Binary Tree	JavaScript	Easy
2370	Longest Ideal Subsequence	JavaScript	Medium
2597	The Number of Beautiful Subsets	JavaScript	Medium
2812	Find the Safest Path in a Grid	JavaScript	Medium
2997	Minimum Number of Operations to Make Array XOR Equal to K	JavaScript	Medium
3123	Find Edges in Shortest Paths	JavaScript	Hard
3148	Maximum Difference Score in a Grid	JavaScript	Medium