jameszhan / leetcode

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