🚀 LeetCode Solutions

My LeetCode solutions, automatically synced from LeetCode!

📊 Statistics

Total Problems Solved: 170
Easy: 42 🟢
Medium: 116 🟡
Hard: 12 🔴

📝 Problems

Problem	Difficulty	Language	Date
100. Same Tree	🟢 Easy	python3	2026-02-22
110. Balanced Binary Tree	🟢 Easy	python3	2026-02-19
118. Pascal's Triangle	🟢 Easy	python3	2026-01-31
118. Pascal's Triangle	🟢 Easy	python3	2026-02-23
125. Valid Palindrome	🟢 Easy	python3	2026-01-13
125. Valid Palindrome	🟢 Easy	python3	2026-02-01
1266. Minimum Time Visiting All Points	🟢 Easy	python3	2026-02-02
13. Roman to Integer	🟢 Easy	python3	2026-01-31
14. Longest Common Prefix	🟢 Easy	python3	2026-01-31
1475. Final Prices With a Special Discount in a Shop	🟢 Easy	python3	2026-05-10
169. Majority Element	🟢 Easy	python3	2026-02-01
1752. Check if Array Is Sorted and Rotated	🟢 Easy	python3	2026-02-02
1752. Check if Array Is Sorted and Rotated	🟢 Easy	python3	2026-02-02
1929. Concatenation of Array	🟢 Easy	python3	2026-02-02
20. Valid Parentheses	🟢 Easy	python3	2026-01-31
206. Reverse Linked List	🟢 Easy	python3	2026-02-01
21. Merge Two Sorted Lists	🟢 Easy	python3	2026-01-31
21. Merge Two Sorted Lists	🟢 Easy	python3	2026-05-25
217. Contains Duplicate	🟢 Easy	python3	2026-01-11
219. Contains Duplicate II	🟢 Easy	python3	2026-02-19
231. Power of Two	🟢 Easy	python3	2026-02-22
242. Valid Anagram	🟢 Easy	python3	2026-01-11
242. Valid Anagram	🟢 Easy	python3	2026-02-01
252. Meeting Rooms	🟢 Easy	python3	2026-05-13
26. Remove Duplicates from Sorted Array	🟢 Easy	python3	2026-01-31
283. Move Zeroes	🟢 Easy	python3	2026-02-01
346. Moving Average from Data Stream	🟢 Easy	python3	2026-02-01
359. Logger Rate Limiter	🟢 Easy	python3	2026-05-12
408. Valid Word Abbreviation	🟢 Easy	python3	2026-02-01
415. Add Strings	🟢 Easy	python3	2026-02-01
496. Next Greater Element I	🟢 Easy	python3	2026-02-19
509. Fibonacci Number	🟢 Easy	python3	2026-03-02
543. Diameter of Binary Tree	🟢 Easy	python3	2026-02-02
605. Can Place Flowers	🟢 Easy	python3	2026-04-18
67. Add Binary	🟢 Easy	python3	2026-02-19
680. Valid Palindrome II	🟢 Easy	python3	2026-02-02
70. Climbing Stairs	🟢 Easy	python3	2026-01-31
824. Goat Latin	🟢 Easy	python3	2026-02-02
876. Middle of the Linked List	🟢 Easy	python3	2026-02-02
888. Fair Candy Swap	🟢 Easy	python3	2026-02-02
933. Number of Recent Calls	🟢 Easy	python3	2026-02-06
977. Squares of a Sorted Array	🟢 Easy	python3	2026-05-10
1004. Max Consecutive Ones III	🟡 Medium	python3	2026-02-22
102. Binary Tree Level Order Traversal	🟡 Medium	python3	2026-05-23
1091. Shortest Path in Binary Matrix	🟡 Medium	python3	2026-02-22
11. Container With Most Water	🟡 Medium	python3	2026-02-26
1101. The Earliest Moment When Everyone Become Friends	🟡 Medium	python3	2026-05-20
1101. The Earliest Moment When Everyone Become Friends	🟡 Medium	python3	2026-05-20
1101. The Earliest Moment When Everyone Become Friends	🟡 Medium	python3	2026-05-20
12. Integer to Roman	🟡 Medium	python3	2026-02-06
12. Integer to Roman	🟡 Medium	python3	2026-05-25
1209. Remove All Adjacent Duplicates in String II	🟡 Medium	python3	2026-01-21
1219. Path with Maximum Gold	🟡 Medium	python3	2026-01-23
122. Best Time to Buy and Sell Stock II	🟡 Medium	python3	2026-03-02
1249. Minimum Remove to Make Valid Parentheses	🟡 Medium	python3	2026-02-22
129. Sum Root to Leaf Numbers	🟡 Medium	python3	2026-02-04
138. Copy List with Random Pointer	🟡 Medium	python3	2026-02-10
1382. Balance a Binary Search Tree	🟡 Medium	python3	2026-02-22
143. Reorder List	🟡 Medium	python3	2026-02-26
1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	🟡 Medium	python3	2026-05-19
146. LRU Cache	🟡 Medium	python3	2026-05-24
151. Reverse Words in a String	🟡 Medium	python3	2026-02-04
155. Min Stack	🟡 Medium	python3	2026-05-25
1570. Dot Product of Two Sparse Vectors	🟡 Medium	python3	2026-02-22
162. Find Peak Element	🟡 Medium	python3	2026-02-05
1653. Minimum Deletions to Make String Balanced	🟡 Medium	python3	2026-02-23
167. Two Sum II - Input Array Is Sorted	🟡 Medium	python3	2026-01-13
17. Letter Combinations of a Phone Number	🟡 Medium	python3	2026-02-03
1762. Buildings With an Ocean View	🟡 Medium	python3	2026-02-26
1868. Product of Two Run-Length Encoded Arrays	🟡 Medium	python3	2026-02-27
199. Binary Tree Right Side View	🟡 Medium	python3	2026-02-05
2. Add Two Numbers	🟡 Medium	python3	2026-02-02
200. Number of Islands	🟡 Medium	python3	2026-02-05
2043. Simple Bank System	🟡 Medium	python3	2026-02-23
2043. Simple Bank System	🟡 Medium	python3	2026-02-23
2086. Minimum Number of Food Buckets to Feed the Hamsters	🟡 Medium	python3	2026-05-04
2086. Minimum Number of Food Buckets to Feed the Hamsters	🟡 Medium	python3	2026-05-04
210. Course Schedule II	🟡 Medium	python3	2026-02-05
215. Kth Largest Element in an Array	🟡 Medium	python3	2026-02-05
22. Generate Parentheses	🟡 Medium	python3	2026-02-03
2265. Count Nodes Equal to Average of Subtree	🟡 Medium	python3	2026-02-27
230. Kth Smallest Element in a BST	🟡 Medium	python3	2026-05-18
236. Lowest Common Ancestor of a Binary Tree	🟡 Medium	python3	2026-02-05
238. Product of Array Except Self	🟡 Medium	python3	2026-01-11
238. Product of Array Except Self	🟡 Medium	python3	2026-02-05
238. Product of Array Except Self	🟡 Medium	python3	2026-02-05
2380. Time Needed to Rearrange a Binary String	🟡 Medium	python3	2026-01-22
2380. Time Needed to Rearrange a Binary String	🟡 Medium	python3	2026-01-22
253. Meeting Rooms II	🟡 Medium	python3	2026-02-20
253. Meeting Rooms II	🟡 Medium	python3	2026-02-20
2831. Find the Longest Equal Subarray	🟡 Medium	python3	2026-05-03
287. Find the Duplicate Number	🟡 Medium	python3	2026-02-06
3. Longest Substring Without Repeating Characters	🟡 Medium	python3	2026-03-01
300. Longest Increasing Subsequence	🟡 Medium	python3	2026-02-06
31. Next Permutation	🟡 Medium	python3	2026-02-27
311. Sparse Matrix Multiplication	🟡 Medium	python3	2026-02-09
314. Binary Tree Vertical Order Traversal	🟡 Medium	python3	2026-02-09
3212. Count Submatrices With Equal Frequency of X and Y	🟡 Medium	python3	2026-03-19
322. Coin Change	🟡 Medium	python3	2026-02-20
33. Search in Rotated Sorted Array	🟡 Medium	python3	2026-02-26
339. Nested List Weight Sum	🟡 Medium	python3	2026-02-09
34. Find First and Last Position of Element in Sorted Array	🟡 Medium	python3	2026-02-03
34. Find First and Last Position of Element in Sorted Array	🟡 Medium	python3	2026-03-02
347. Top K Frequent Elements	🟡 Medium	python3	2026-02-09
348. Design Tic-Tac-Toe	🟡 Medium	python3	2026-05-27
355. Design Twitter	🟡 Medium	python3	2026-01-11
3584. Maximum Product of First and Last Elements of a Subsequence	🟡 Medium	python3	2026-06-05
3634. Minimum Removals to Balance Array	🟡 Medium	python3	2026-02-24
3634. Minimum Removals to Balance Array	🟡 Medium	python3	2026-02-24
364. Nested List Weight Sum II	🟡 Medium	python3	2026-04-18
378. Kth Smallest Element in a Sorted Matrix	🟡 Medium	python3	2026-02-10
380. Insert Delete GetRandom O(1)	🟡 Medium	python3	2026-05-26
3Sum	🟡 Medium	python3	2026-02-10
419. Battleships in a Board	🟡 Medium	python3	2026-02-10
419. Battleships in a Board	🟡 Medium	python3	2026-02-23
426. Convert Binary Search Tree to Sorted Doubly Linked List	🟡 Medium	python3	2026-02-20
427. Construct Quad Tree	🟡 Medium	python3	2026-05-10
43. Multiply Strings	🟡 Medium	python3	2026-05-04
443. String Compression	🟡 Medium	python3	2026-02-20
443. String Compression	🟡 Medium	python3	2026-02-20
443. String Compression	🟡 Medium	python3	2026-05-25
46. Permutations	🟡 Medium	python3	2026-02-10
49. Group Anagrams	🟡 Medium	python3	2026-01-11
49. Group Anagrams	🟡 Medium	python3	2026-02-04
4Sum	🟡 Medium	python3	2026-02-03
5. Longest Palindromic Substring	🟡 Medium	python3	2026-02-03
50. Pow(x, n)	🟡 Medium	python3	2026-02-04
528. Random Pick with Weight	🟡 Medium	python3	2026-02-21
545. Boundary of Binary Tree	🟡 Medium	python3	2026-02-22
55. Jump Game	🟡 Medium	python3	2026-02-19
554. Brick Wall	🟡 Medium	python3	2026-06-08
56. Merge Intervals	🟡 Medium	python3	2026-02-05
560. Subarray Sum Equals K	🟡 Medium	python3	2026-02-20
560. Subarray Sum Equals K	🟡 Medium	python3	2026-02-20
57. Insert Interval	🟡 Medium	python3	2026-02-19
636. Exclusive Time of Functions	🟡 Medium	python3	2026-02-21
64. Minimum Path Sum	🟡 Medium	python3	2026-05-14
647. Palindromic Substrings	🟡 Medium	python3	2026-02-21
670. Maximum Swap	🟡 Medium	python3	2026-02-27
692. Top K Frequent Words	🟡 Medium	python3	2026-05-15
692. Top K Frequent Words	🟡 Medium	python3	2026-05-26
71. Simplify Path	🟡 Medium	python3	2026-02-20
743. Network Delay Time	🟡 Medium	python3	2026-01-26
77. Combinations	🟡 Medium	python3	2026-02-22
77. Combinations	🟡 Medium	python3	2026-02-22
791. Custom Sort String	🟡 Medium	python3	2026-02-26
8. String to Integer (atoi)	🟡 Medium	python3	2026-02-03
853. Car Fleet	🟡 Medium	python3	2026-05-27
863. All Nodes Distance K in Binary Tree	🟡 Medium	python3	2026-02-21
92. Reverse Linked List II	🟡 Medium	python3	2026-02-22
93. Restore IP Addresses	🟡 Medium	python3	2026-05-04
934. Shortest Bridge	🟡 Medium	python3	2026-01-28
939. Minimum Area Rectangle	🟡 Medium	python3	2026-05-27
973. K Closest Points to Origin	🟡 Medium	python3	2026-02-21
986. Interval List Intersections	🟡 Medium	python3	2026-02-26
Unknown Problem	🟡 Medium	python3	2026-02-02
Unknown Problem	🟡 Medium	python3	2026-02-03
Unknown Problem	🟡 Medium	python3	2026-02-04
149. Max Points on a Line	🔴 Hard	python3	2026-05-27
239. Sliding Window Maximum	🔴 Hard	python3	2026-05-26
2858. Minimum Edge Reversals So Every Node Is Reachable	🔴 Hard	python3	2026-05-20
2858. Minimum Edge Reversals So Every Node Is Reachable	🔴 Hard	python3	2026-05-20
305. Number of Islands II	🔴 Hard	python3	2026-05-20
317. Shortest Distance from All Buildings	🔴 Hard	python3	2026-05-27
4. Median of Two Sorted Arrays	🔴 Hard	plaintext	2026-05-22
41. First Missing Positive	🔴 Hard	python3	2026-03-02
42. Trapping Rain Water	🔴 Hard	python3	2026-02-24
489. Robot Room Cleaner	🔴 Hard	python3	2026-04-20
827. Making A Large Island	🔴 Hard	python3	2026-03-01
987. Vertical Order Traversal of a Binary Tree	🔴 Hard	python3	2026-02-24

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Name		Name	Last commit message	Last commit date
1. Two Sum		1. Two Sum
100. Same Tree		100. Same Tree
1004. Max Consecutive Ones III		1004. Max Consecutive Ones III
102. Binary Tree Level Order Traversal		102. Binary Tree Level Order Traversal
1091. Shortest Path in Binary Matrix		1091. Shortest Path in Binary Matrix
11. Container With Most Water		11. Container With Most Water
110. Balanced Binary Tree		110. Balanced Binary Tree
1101. The Earliest Moment When Everyone Become Friends		1101. The Earliest Moment When Everyone Become Friends
118. Pascals Triangle		118. Pascals Triangle
12. Integer to Roman		12. Integer to Roman
1209. Remove All Adjacent Duplicates in String II		1209. Remove All Adjacent Duplicates in String II
121. Best Time to Buy and Sell Stock		121. Best Time to Buy and Sell Stock
1219. Path with Maximum Gold		1219. Path with Maximum Gold
122. Best Time to Buy and Sell Stock II		122. Best Time to Buy and Sell Stock II
1249. Minimum Remove to Make Valid Parentheses		1249. Minimum Remove to Make Valid Parentheses
125. Valid Palindrome		125. Valid Palindrome
1266. Minimum Time Visiting All Points		1266. Minimum Time Visiting All Points
128. Longest Consecutive Sequence		128. Longest Consecutive Sequence
129. Sum Root to Leaf Numbers		129. Sum Root to Leaf Numbers
13. Roman to Integer		13. Roman to Integer
138. Copy List with Random Pointer		138. Copy List with Random Pointer
1382. Balance a Binary Search Tree		1382. Balance a Binary Search Tree
14. Longest Common Prefix		14. Longest Common Prefix
1429. First Unique Number		1429. First Unique Number
143. Reorder List		143. Reorder List
1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit		1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
146. LRU Cache		146. LRU Cache
1475. Final Prices With a Special Discount in a Shop		1475. Final Prices With a Special Discount in a Shop
149. Max Points on a Line		149. Max Points on a Line
151. Reverse Words in a String		151. Reverse Words in a String
155. Min Stack		155. Min Stack
1570. Dot Product of Two Sparse Vectors		1570. Dot Product of Two Sparse Vectors
162. Find Peak Element		162. Find Peak Element
1653. Minimum Deletions to Make String Balanced		1653. Minimum Deletions to Make String Balanced
167. Two Sum II - Input Array Is Sorted		167. Two Sum II - Input Array Is Sorted
169. Majority Element		169. Majority Element
17. Letter Combinations of a Phone Number		17. Letter Combinations of a Phone Number
1752. Check if Array Is Sorted and Rotated		1752. Check if Array Is Sorted and Rotated
1762. Buildings With an Ocean View		1762. Buildings With an Ocean View
1868. Product of Two Run-Length Encoded Arrays		1868. Product of Two Run-Length Encoded Arrays
1929. Concatenation of Array		1929. Concatenation of Array
199. Binary Tree Right Side View		199. Binary Tree Right Side View
2. Add Two Numbers		2. Add Two Numbers
20. Valid Parentheses		20. Valid Parentheses
200. Number of Islands		200. Number of Islands
2043. Simple Bank System		2043. Simple Bank System
205. Isomorphic Strings		205. Isomorphic Strings
206. Reverse Linked List		206. Reverse Linked List
2086. Minimum Number of Food Buckets to Feed the Hamsters		2086. Minimum Number of Food Buckets to Feed the Hamsters
21. Merge Two Sorted Lists		21. Merge Two Sorted Lists
210. Course Schedule II		210. Course Schedule II
215. Kth Largest Element in an Array		215. Kth Largest Element in an Array
217. Contains Duplicate		217. Contains Duplicate
219. Contains Duplicate II		219. Contains Duplicate II
22. Generate Parentheses		22. Generate Parentheses
2265. Count Nodes Equal to Average of Subtree		2265. Count Nodes Equal to Average of Subtree
230. Kth Smallest Element in a BST		230. Kth Smallest Element in a BST
231. Power of Two		231. Power of Two
236. Lowest Common Ancestor of a Binary Tree		236. Lowest Common Ancestor of a Binary Tree
238. Product of Array Except Self		238. Product of Array Except Self
2380. Time Needed to Rearrange a Binary String		2380. Time Needed to Rearrange a Binary String
239. Sliding Window Maximum		239. Sliding Window Maximum
242. Valid Anagram		242. Valid Anagram
252. Meeting Rooms		252. Meeting Rooms
253. Meeting Rooms II		253. Meeting Rooms II
26. Remove Duplicates from Sorted Array		26. Remove Duplicates from Sorted Array
269. Alien Dictionary		269. Alien Dictionary
271. Encode and Decode Strings		271. Encode and Decode Strings
278. First Bad Version		278. First Bad Version
283. Move Zeroes		283. Move Zeroes
2831. Find the Longest Equal Subarray		2831. Find the Longest Equal Subarray
2858. Minimum Edge Reversals So Every Node Is Reachable		2858. Minimum Edge Reversals So Every Node Is Reachable
287. Find the Duplicate Number		287. Find the Duplicate Number
3. Longest Substring Without Repeating Characters		3. Longest Substring Without Repeating Characters
300. Longest Increasing Subsequence		300. Longest Increasing Subsequence
305. Number of Islands II		305. Number of Islands II
31. Next Permutation		31. Next Permutation
311. Sparse Matrix Multiplication		311. Sparse Matrix Multiplication
314. Binary Tree Vertical Order Traversal		314. Binary Tree Vertical Order Traversal
317. Shortest Distance from All Buildings		317. Shortest Distance from All Buildings
3212. Count Submatrices With Equal Frequency of X and Y		3212. Count Submatrices With Equal Frequency of X and Y
322. Coin Change		322. Coin Change
33. Search in Rotated Sorted Array		33. Search in Rotated Sorted Array
339. Nested List Weight Sum		339. Nested List Weight Sum
34. Find First and Last Position of Element in Sorted Array		34. Find First and Last Position of Element in Sorted Array
346. Moving Average from Data Stream		346. Moving Average from Data Stream
347. Top K Frequent Elements		347. Top K Frequent Elements
348. Design Tic-Tac-Toe		348. Design Tic-Tac-Toe
355. Design Twitter		355. Design Twitter
3584. Maximum Product of First and Last Elements of a Subsequence		3584. Maximum Product of First and Last Elements of a Subsequence
359. Logger Rate Limiter		359. Logger Rate Limiter
36. Valid Sudoku		36. Valid Sudoku
3634. Minimum Removals to Balance Array		3634. Minimum Removals to Balance Array
364. Nested List Weight Sum II		364. Nested List Weight Sum II
378. Kth Smallest Element in a Sorted Matrix		378. Kth Smallest Element in a Sorted Matrix
380. Insert Delete GetRandom O1		380. Insert Delete GetRandom O1
3Sum		3Sum
4. Median of Two Sorted Arrays		4. Median of Two Sorted Arrays
408. Valid Word Abbreviation		408. Valid Word Abbreviation
41. First Missing Positive		41. First Missing Positive

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