1 |
Two Sum |
Python |
C++ |
Go |
2 |
Add Two Numbers |
Python |
C++ |
Go |
3 |
Longest Substring Without Repeating Characters |
Python |
C++ |
Go |
4 |
Median of Two Sorted Arrays |
Python |
C++ |
Go |
5 |
Longest Palindromic Substring |
Python |
C++ |
Go |
6 |
ZigZag Conversion |
Python |
C++ |
TODO |
7 |
Reverse Integer |
Python |
C++ |
TODO |
8 |
String to Integer (atoi) |
Python |
TODO |
TODO |
9 |
Palindrome Number |
Python |
C++ |
TODO |
10 |
Regular Expression Matching |
Python |
TODO |
TODO |
11 |
Container With Most Water |
Python |
C++ |
TODO |
13 |
Roman to Integer |
Python |
C++ |
TODO |
14 |
Longest Common Prefix |
Python |
TODO |
TODO |
15 |
3Sum |
Python |
C++ |
TODO |
16 |
3Sum Closest |
Python |
C++ |
TODO |
17 |
Letter Combinations of a Phone Number |
Python |
C++ |
TODO |
18 |
4Sum |
Python |
TODO |
TODO |
19 |
Remove Nth Node From End of List |
Python |
TODO |
TODO |
20 |
Valid Parentheses |
Python |
C++ |
TODO |
21 |
Merge Two Sorted Lists |
Python |
TODO |
TODO |
22 |
Generate Parentheses |
Python |
TODO |
TODO |
23 |
Merge k Sorted Lists |
Python |
TODO |
TODO |
25 |
Reverse Nodes in k-Group |
Python |
TODO |
TODO |
26 |
Remove Duplicates from Sorted Array |
Python |
TODO |
TODO |
28 |
Implement strStr() |
Python |
TODO |
TODO |
29 |
Divide Two Integers |
Python |
TODO |
TODO |
30 |
Substring with Concatenation of All Words |
Python |
TODO |
TODO |
33 |
Search in Rotated Sorted Array |
Python |
TODO |
TODO |
35 |
Search Insert Position |
Python |
C++ |
TODO |
36 |
Valid Sudoku |
Python |
TODO |
TODO |
37 |
Sudoku Solver |
Python |
TODO |
TODO |
38 |
Count and Say |
Python |
TODO |
TODO |
39 |
Combination Sum |
Python |
TODO |
TODO |
42 |
Trapping Rain Water |
Python |
TODO |
TODO |
46 |
Permutations |
Python |
TODO |
TODO |
48 |
Rotate Image |
Python |
TODO |
TODO |
49 |
Group Anagrams |
Python |
TODO |
TODO |
51 |
N-Queens |
Python |
TODO |
TODO |
52 |
N-Queens II |
Python |
TODO |
TODO |
53 |
Maximum Subarray |
Python |
TODO |
TODO |
55 |
Jump Game |
Python |
TODO |
Go |
59 |
Spiral Matrix II |
Python |
TODO |
TODO |
62 |
Unique Paths |
Python |
C++ |
TODO |
63 |
Unique Paths II |
Python |
TODO |
TODO |
64 |
Minimum Path Sum |
Python |
C++ |
TODO |
66 |
Plus One |
Python |
TODO |
TODO |
67 |
Add Binary |
Python |
TODO |
TODO |
69 |
Sqrt(x) |
TODO |
C++ |
TODO |
70 |
Climbing Stairs |
Python |
C++ |
TODO |
73 |
Set Matrix Zeroes |
Python |
TODO |
TODO |
74 |
Search a 2D Matrix |
Python |
TODO |
TODO |
77 |
Combinations |
Python |
TODO |
TODO |
79 |
Word Search |
Python |
TODO |
TODO |
80 |
Remove Duplicates from Sorted Array II |
Python |
TODO |
TODO |
81 |
Search in Rotated Sorted Array II |
Python |
TODO |
TODO |
84 |
Largest Rectangle in Histogram |
Python |
TODO |
TODO |
85 |
Maximal Rectangle |
Python |
TODO |
TODO |
88 |
Merge Sorted Array |
Python |
TODO |
TODO |
92 |
Reverse Linked List II |
Python |
TODO |
TODO |
98 |
Validate Binary Search Tree |
Python |
TODO |
TODO |
101 |
Symmetric Tree |
Python |
TODO |
TODO |
102 |
Binary Tree Level Order Traversal |
Python |
TODO |
TODO |
104 |
Maximum Depth of Binary Tree |
Python |
C++ |
TODO |
105 |
Construct Binary Tree from Preorder and Inorder Traversal |
Python |
TODO |
TODO |
106 |
Construct Binary Tree from Inorder and Postorder Traversal |
Python |
TODO |
TODO |
108 |
Convert Sorted Array to Binary Search Tree |
Python |
TODO |
Go |
109 |
Convert Sorted List to Binary Search Tree |
Python |
TODO |
TODO |
112 |
Path Sum |
Python |
TODO |
TODO |
113 |
Path Sum II |
Python |
TODO |
TODO |
121 |
Best Time to Buy and Sell Stock |
Python |
TODO |
TODO |
122 |
Best Time to Buy and Sell Stock II |
Python |
TODO |
TODO |
125 |
Valid Palindrome |
Python |
TODO |
TODO |
128 |
Longest Consecutive Sequence |
Python |
TODO |
TODO |
130 |
Surrounded Regions |
Python |
TODO |
TODO |
131 |
Palindrome Partitioning |
Python |
TODO |
TODO |
136 |
Single Number |
Python |
TODO |
TODO |
141 |
Linked List Cycle |
Python |
TODO |
TODO |
142 |
Linked List Cycle II |
Python |
TODO |
TODO |
148 |
Sort List |
Python |
TODO |
TODO |
150 |
Evaluate Reverse Polish Notation |
Python |
TODO |
TODO |
152 |
Maximum Product Subarray |
Python |
TODO |
TODO |
153 |
Find Minimum in Rotated Sorted Array |
Python |
TODO |
TODO |
154 |
Find Minimum in Rotated Sorted Array II |
Python |
TODO |
TODO |
155 |
Min Stack |
Python |
TODO |
TODO |
160 |
Intersection of Two Linked Lists |
Python |
C++ |
TODO |
162 |
Find Peak Element |
Python |
TODO |
TODO |
167 |
Two Sum II - Input array is sorted |
TODO |
C++ |
TODO |
189 |
Rotate Array |
Python |
TODO |
TODO |
198 |
House Robber |
Python |
TODO |
TODO |
200 |
Number of Islands |
Python |
C++ |
TODO |
203 |
Remove Linked List Elements |
Python |
C++ |
TODO |
204 |
Count Primes |
Python |
TODO |
TODO |
206 |
Reverse Linked List |
Python |
TODO |
Go |
208 |
Implement Trie (Prefix Tree) |
Python |
TODO |
TODO |
211 |
Design Add and Search Words Data Structure |
Python |
TODO |
TODO |
213 |
House Robber II |
Python |
TODO |
TODO |
215 |
Kth Largest Element in an Array |
Python |
TODO |
TODO |
217 |
Contains Duplicate |
Python |
TODO |
TODO |
219 |
Contains Duplicate II |
Python |
TODO |
TODO |
232 |
Implement Queue using Stacks |
Python |
TODO |
TODO |
234 |
Palindrome Linked List |
Python |
TODO |
Go |
237 |
Delete Node in a Linked List |
Python |
TODO |
TODO |
239 |
Sliding Window Maximum |
Python |
TODO |
TODO |
240 |
Search a 2D Matrix II |
Python |
TODO |
TODO |
241 |
Different Ways to Add Parentheses |
Python |
TODO |
TODO |
242 |
Valid Anagram |
Python |
TODO |
TODO |
278 |
First Bad Version |
TODO |
C++ |
TODO |
279 |
Perfect Squares |
Python |
TODO |
TODO |
283 |
Move Zeroes |
Python |
TODO |
TODO |
287 |
Find the Duplicate Number |
Python |
C++ |
TODO |
290 |
Word Pattern |
Python |
TODO |
TODO |
295 |
Find Median from Data Stream |
Python |
TODO |
TODO |
300 |
Longest Increasing Subsequence |
Python |
TODO |
TODO |
303 |
Range Sum Query - Immutable |
Python |
TODO |
TODO |
309 |
Best Time to Buy and Sell Stock with Cooldown |
Python |
TODO |
TODO |
312 |
Burst Balloons |
Python |
TODO |
TODO |
322 |
Coin Change |
Python |
C++ |
TODO |
326 |
Power of Three |
Python |
TODO |
TODO |
334 |
Increasing Triplet Subsequence |
Python |
TODO |
TODO |
337 |
House Robber III |
Python |
TODO |
TODO |
338 |
Counting Bits |
Python |
TODO |
TODO |
342 |
Power of Four |
Python |
TODO |
TODO |
347 |
Top K Frequent Elements |
Python |
TODO |
TODO |
350 |
Intersection of Two Arrays II |
Python |
TODO |
TODO |
367 |
Valid Perfect Square |
Python |
TODO |
TODO |
371 |
Sum of Two Integers |
Python |
TODO |
TODO |
374 |
Guess Number Higher or Lower |
TODO |
C++ |
TODO |
378 |
Kth Smallest Element in a Sorted Matrix |
TODO |
C++ |
TODO |
387 |
First Unique Character in a String |
Python |
C++ |
TODO |
389 |
Find the Difference |
Python |
TODO |
TODO |
406 |
Queue Reconstruction by Height |
Python |
TODO |
TODO |
412 |
Fizz Buzz |
Python |
TODO |
TODO |
413 |
Arithmetic Slices |
Python |
TODO |
TODO |
416 |
Partition Equal Subset Sum |
Python |
C++ |
TODO |
438 |
Find All Anagrams in a String |
Python |
TODO |
TODO |
441 |
Arranging Coins |
TODO |
C++ |
TODO |
445 |
Add Two Numbers II |
Python |
C++ |
TODO |
448 |
Find All Numbers Disappeared in an Array |
Python |
TODO |
TODO |
451 |
Sort Characters By Frequency |
Python |
TODO |
TODO |
452 |
Minimum Number of Arrows to Burst Balloons |
Python |
TODO |
TODO |
454 |
4Sum II |
Python |
TODO |
TODO |
455 |
Assign Cookies |
Python |
TODO |
TODO |
456 |
132 Pattern |
Python |
TODO |
TODO |
461 |
Hamming Distance |
Python |
TODO |
TODO |
463 |
Island Perimeter |
Python |
TODO |
TODO |
476 |
Number Complement |
Python |
TODO |
TODO |
518 |
Coin Change 2 |
Python |
TODO |
TODO |
535 |
Encode and Decode TinyURL |
Python |
TODO |
TODO |
538 |
Convert BST to Greater Tree |
Python |
TODO |
TODO |
543 |
Diameter of Binary Tree |
Python |
TODO |
TODO |
561 |
Array Partition I |
Python |
TODO |
TODO |
572 |
Subtree of Another Tree |
Python |
TODO |
TODO |
581 |
Shortest Unsorted Continuous Subarray |
Python |
TODO |
TODO |
605 |
Can Place Flowers |
Python |
TODO |
TODO |
617 |
Merge Two Binary Trees |
Python |
TODO |
TODO |
638 |
Shopping Offers |
Python |
TODO |
TODO |
643 |
Maximum Average Subarray I |
Python |
TODO |
TODO |
648 |
Replace Words |
Python |
TODO |
TODO |
654 |
Maximum Binary Tree |
Python |
TODO |
TODO |
655 |
Print Binary Tree |
Python |
TODO |
TODO |
657 |
Robot Return to Origin |
Python |
TODO |
TODO |
658 |
Find K Closest Elements |
TODO |
C++ |
TODO |
665 |
Non-decreasing Array |
Python |
TODO |
TODO |
669 |
Trim a Binary Search Tree |
Python |
TODO |
TODO |
677 |
Map Sum Pairs |
Python |
TODO |
TODO |
693 |
Binary Number with Alternating Bits |
Python |
TODO |
TODO |
695 |
Max Area of Island |
Python |
TODO |
TODO |
714 |
Best Time to Buy and Sell Stock with Transaction Fee |
Python |
TODO |
TODO |
739 |
Daily Temperatures |
Python |
TODO |
TODO |
744 |
Network Delay Time |
Python |
TODO |
TODO |
746 |
Prefix and Suffix Search |
Python |
TODO |
TODO |
763 |
Special Binary String |
Python |
C++ |
TODO |
771 |
Encode N-ary Tree to Binary Tree |
Python |
TODO |
TODO |
807 |
Custom Sort String |
Python |
TODO |
TODO |
811 |
Number of Subarrays with Bounded Maximum |
Python |
TODO |
TODO |
814 |
Smallest Rotation with Highest Score |
Python |
TODO |
TODO |
817 |
Design HashMap |
Python |
TODO |
TODO |
821 |
Bricks Falling When Hit |
Python |
TODO |
TODO |
852 |
Friends Of Appropriate Ages |
Python |
C++ |
TODO |
876 |
Hand of Straights |
Python |
C++ |
TODO |
877 |
Shortest Path Visiting All Nodes |
Python |
TODO |
TODO |
905 |
Length of Longest Fibonacci Subsequence |
Python |
TODO |
TODO |
907 |
Koko Eating Bananas |
Python |
TODO |
TODO |
922 |
Possible Bipartition |
Python |
TODO |
TODO |
969 |
Number of Recent Calls |
Python |
TODO |
TODO |
973 |
Stamping The Sequence |
Python |
TODO |
TODO |
977 |
Distinct Subsequences II |
Python |
TODO |
TODO |
979 |
DI String Match |
Python |
TODO |
TODO |
1038 |
Number of Squareful Arrays |
Python |
TODO |
TODO |
1048 |
Clumsy Factorial |
Python |
TODO |
TODO |
1071 |
Binary Prefix Divisible By 5 |
Python |
TODO |
TODO |
1072 |
Next Greater Node In Linked List |
Python |
TODO |
TODO |
1091 |
Maximum Average Subtree |
Python |
TODO |
TODO |
1122 |
Longest Duplicate Substring |
Python |
TODO |
TODO |
1221 |
Element Appearing More Than 25% In Sorted Array |
Python |
TODO |
TODO |
1281 |
Can Make Palindrome from Substring |
Python |
TODO |
TODO |
1282 |
Number of Valid Words for Each Puzzle |
Python |
TODO |
TODO |
1293 |
Three Consecutive Odds |
Python |
TODO |
TODO |
1295 |
Minimum Garden Perimeter to Collect Enough Apples |
Python |
TODO |
TODO |
1302 |
Delete Characters to Make Fancy String |
Python |
TODO |
TODO |
1313 |
Count Ways to Build Rooms in an Ant Colony |
Python |
TODO |
TODO |
1534 |
Minimum Number of Frogs Croaking |
Python |
TODO |
TODO |
1535 |
Build Array Where You Can Find The Maximum Exactly K Comparisons |
Python |
TODO |
TODO |