/leetcode

Primary LanguageJupyter Notebook

LeetCode

LeetCode Algorithm

# Title Solution Difficulty
1438 Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit Python Medium
1143 Longest Common Subsequence Python Medium
1004 Max Consecutive Ones III Python Medium
995 Minimum Number of K Consecutive Bit Flips Python Hard
867 Transpose Matrix Python Easy
766 Toeplitz Matrix Python Easy
718 Maximum Length of Repeated Subarray Python, Go Medium
697 Degree of an Array Python Easy
692 Top K Frequent Words Python Medium
673 Number of Longest Increasing Subsequence Python Medium
653 Two Sum IV - Input is a BST Python Easy
590 N-ary Tree Postorder Traversal Python Easy
589 N-ary Tree Preorder Traversal Python Easy
566 Reshape the Matrix Python Easy
561 Array Partition I Python Easy
559 Maximum Depth of N-ary Tree Python Easy
518 Coin Change 2 Python Medium
516 Longest Palindromic Subsequence Python Medium
509 Fibonacci Number Python Easy
485 Max Consecutive Ones Python Medium
468 Validate IP Address Python Medium
454 4Sum II Python Medium
445 Add Two Numbers II Python Medium
448 Find All Numbers Disappeared in an Array Python Easy
441 Arranging Coins Python Easy
429 N-ary Tree Level Order Traversal Python Medium
415 Add Strings Python Easy
414 Third Maximum Number C++ Easy
409 Longest Palindrome Python Easy
405 Convert a Number to Hexadecimal Python Easy
401 Binary Watch Python Easy
392 Is Subsequence Python Medium
383 Ransom Note Python Easy
377 Combination Sum IV Python Medium
371 Sum of Two Integers Python Easy
367 Valid Perfect Square Python Easy
350 Intersection of Two Arrays II Python Easy
349 Intersection of Two Arrays Python Easy
347 Top K Frequent Elements Python Medium
345 Reverse Vowels of a String Python Easy
344 Reverse String Python Easy
342 Power of Four Python Easy
337 House Robber III Python Medium
328 Odd Even Linked List Python Easy
326 Power of Three Python Easy
322 Coin Change Python Medium
309 Best Time to Buy and Sell Stock with Cooldown Python Medium
303 Range Sum Query - Immutable Python Easy
300 Longest Increasing Subsequence Python Medium
292 Nim Game Python Easy
290 Word Pattern Python Easy
283 Move Zeroes Python Easy
278 First Bad Version Python Easy
268 Missing Number Python Medium
263 Ugly Number Python Easy
258 Add Digits Python Easy
257 Binary Tree Paths Python Easy
242 Valid Anagram Python Easy
238 Product of Array Except Self Python Medium
237 Delete Node in a Linked List Python Easy
236 Lowest Common Ancestor of a Binary Tree ♥ Python Medium
235 Lowest Common Ancestor of a Binary Search Tree ♥ Python Easy
234 Palindrome Linked List Python Easy
232 Implement Queue using Stacks Python Easy
231 Power of Two Python Easy
228 Summary Ranges Python Easy
226 Invert Binary Tree Python Easy
225 Implement Stack using Queues Python Medium
224 Basic Calculator Python Medium
221 Maximal Square Python Medium
219 Contains Duplicate II Python Easy
217 Contains Duplicate Python Easy
213 House Robber II Python Medium
206 Reverse Linked List Python Easy
205 Isomorphic Strings Python Easy
204 Count Primes Python Easy
203 Remove Linked List Elements Python Easy
202 Happy Number Python Easy
200 Number of Islands Python Medium
199 Binary Tree Right Side View Python Medium
198 House Robber Python Easy
191 Number of 1 Bits Python Easy
190 Reverse Bits Python Easy
189 Rotate Array Python Easy
188 Best Time to Buy and Sell Stock IV Python Hard
172 Factorial Trailing Zeroes Python Easy
171 Excel Sheet Column Number Python Easy
169 Majority Element Python Easy
168 Excel Sheet Column Title Python Easy
167 Two Sum II - Input array is sorted Python Medium
160 Intersection of Two Linked Lists Python Easy
152 Maximum Product Subarray Python Medium
150 Evaluate Reverse Polish Notation Python Medium
146 LRU Cache Python Hard
145 Binary Tree Postorder Traversal Python Hard
144 Binary Tree Preorder Traversal Python Medium
141 Linked List Cycle Python Medium
136 Single Number Python Medium
128 Longest Consecutive Sequence Python Hard
125 Valid Palindrome Python Easy
123 Best Time to Buy and Sell Stock III Python Hard
122 Best Time to Buy and Sell Stock II Python Medium
121 Best Time to Buy and Sell Stock Python Medium
120 Triangle Python Medium
119 Pascal's Triangle II Python Easy
118 Pascal's Triangle Python Easy
115 Distinct Subsequences Python Hard
112 Path Sum Python Easy
111 Minimum Depth of Binary Tree Python Easy
110 Balanced Binary Tree Python Easy
107 Binary Tree Level Order Traversal II Python Easy
106 Construct Binary Tree from Inorder and Postorder Traversal Python Medium
105 Construct Binary Tree from Preorder and Inorder Traversal Python Medium
104 Maximum Depth of Binary Tree Python Easy
103 Binary Tree Zigzag Level Order Traversal Python Medium
102 Binary Tree Level Order Traversal Python Easy
101 Symmetric Tree Python Easy
100 Same Tree Python Easy
098 Validate Binary Search Tree Python Medium
096 Unique Binary Search Trees Python Medium
095 Unique Binary Search Trees II Python Medium
094 Binary Tree Inorder Traversal Python Medium
092 Reverse Linked List II Python Medium
091 Decode Ways Python Medium
088 Merge Sorted Array Python Easy
083 Remove Duplicates from Sorted List Python Easy
078 Subsets Python Medium
077 Combinations Python, Go Medium
076 Minimum Window Substring Python Hard
075 Sort Colors Python Medium
074 Search a 2D Matrix Python Medium
073 Set Matrix Zeroes Python Medium
072 Edit Distance Python Hard
070 Climbing Stairs Python Easy
069 Sqrt(x) Python Medium
067 Add Binary Python Easy
066 Plus One Python Easy
064 Minimum Path Sum Python, Go Medium
063 Unique Paths II Python Medium
062 Unique Paths Python Medium
059 Spiral Matrix II Python Medium
058 Length of Last Word Python Easy
056 Merge Intervals Python Hard
053 Maximum Subarray Python Medium
052 N-Queens II Python Hard
051 N-Queens Python Hard
050 Pow(x, n) Python Medium
049 Group Anagrams Python Medium
048 Rotate Image Pythonn Medium
047 Permutations II Python Hard
046 Permutations Python Medium
044 Wildcard Matching Python Hard
043 Multiply Strings Python Medium
042 Trapping Rain Water Python, Go Hard
041 First Missing Positive Python Hard
040 Combination Sum II Python Medium
039 Combination Sum Python Medium
038 Count and Say Python Easy
036 Valid Sudoku Python Easy
035 Search Insert Position Python Medium
034 Find First and Last Position of Element in Sorted Array Python) Medium
033 Search in Rotated Sorted Array Python Hard
032 Longest Valid Parentheses Python Hard
031 Next Permutation Python Medium
029 Divide Two Integers Python Medium
028 Implement strStr() Python Easy
027 Remove Element Python Easy
026 Remove Duplicates from Sorted Array Python Easy
025 Reverse Nodes in k-Group Python Hard
024 Swap Nodes in Pairs Python Medium
023 Merge k Sorted Lists Python Hard
022 Generate Parentheses ♥ Python Medium
021 Merge Two Sorted Lists Python Easy
020 Valid Parentheses Python Easy
019 Remove Nth Node From End of List Python Easy
018 4Sum Python Medium
017 Letter Combinations of a Phone Number Python Medium
016 3Sum Closest Python Medium
015 3Sum Python Medium
014 Longest Common Prefix Python Easy
013 Roman to Integer Python Easy
012 Integer to Roman Python Medium
011 Container With Most Water Python Medium
010 Regular Expression Matching Python Hard
009 Palindrome Number Python Easy
008 String to Integer (atoi) Python Easy
007 Reverse Integer Python Easy
006 ZigZag Conversion Python Easy
005 Longest Palindromic Substring Python Medium
004 Median of Two Sorted Arrays Python Hard
003 Longest Substring Without Repeating Characters Python Medium
002 Add Two Numbers Python Medium
001 Two Sum Python Easy