| 1 |
Two Sum |
☆ |
35% |
|
| 2 |
Add Two Numbers |
☆ ☆ |
27% |
|
| 3 |
Longest Substring Without Repeating Characters |
☆ ☆ |
24% |
|
| 4 |
Median of Two Sorted Arrays |
☆ ☆ ☆ |
21% |
|
| 5 |
Longest Palindromic Substring |
☆ ☆ |
25% |
|
| 6 |
ZigZag Conversion |
☆ ☆ |
26% |
|
| 7 |
Reverse Integer |
☆ |
24% |
|
| 8 |
String to Integer (atoi) |
☆ ☆ |
13% |
|
| 9 |
Palindrome Number |
☆ |
35% |
|
| 10 |
Regular Expression Matching |
☆ ☆ ☆ |
24% |
❤ |
| 11 |
Container With Most Water |
☆ ☆ |
36% |
|
| 12 |
Integer to Roman |
☆ ☆ |
45% |
|
| 13 |
Roman to Integer |
☆ |
46% |
|
| 14 |
Longest Common Prefix |
☆ |
31% |
|
| 15 |
3Sum |
☆ ☆ |
21% |
|
| 16 |
3Sum Closest |
☆ ☆ |
31% |
|
| 17 |
Letter Combinations of a Phone Number |
☆ ☆ |
34% |
|
| 18 |
4Sum |
☆ ☆ |
26% |
|
| 19 |
Remove Nth Node From End of List |
☆ ☆ |
33% |
|
| 20 |
Valid Parentheses |
☆ |
33% |
|
| 21 |
Merge Two Sorted Lists |
☆ |
39% |
|
| 22 |
Generate Parentheses |
☆ ☆ |
45% |
❤ |
| 23 |
Merge k Sorted Lists |
☆ ☆ ☆ |
27% |
|
| 24 |
Swap Nodes in Pairs |
☆ ☆ |
38% |
❤ |
| 25 |
Reverse Nodes in k-Group |
☆ ☆ ☆ |
30% |
❤ |
| 26 |
Remove Duplicates from Sorted Array |
☆ |
35% |
❤ |
| 27 |
Remove Element |
☆ |
39% |
|
| 28 |
Implement strStr() |
☆ |
28% |
|
| 29 |
Divide Two Integers |
☆ ☆ |
15% |
|
| 30 |
Substring with Concatenation of All Words |
☆ ☆ ☆ |
22% |
❤ |
| 31 |
Next Permutation |
☆ ☆ |
28% |
❤ |
| 32 |
Longest Valid Parentheses |
☆ ☆ ☆ |
23% |
|
| 33 |
Search in Rotated Sorted Array |
☆ ☆ |
32% |
❤ |
| 34 |
Search for a Range |
☆ ☆ |
31% |
|
| 35 |
Search Insert Position |
☆ |
39% |
|
| 36 |
Valid Sudoku |
☆ ☆ |
35% |
❤ |
| 37 |
Sudoku Solver |
☆ ☆ ☆ |
30% |
❤ |
| 38 |
Count and Say |
☆ |
34% |
|
| 39 |
Combination Sum |
☆ ☆ |
39% |
|
| 40 |
Combination Sum II |
☆ ☆ |
34% |
|
| 41 |
First Missing Positive |
☆ ☆ ☆ |
25% |
|
| 42 |
Trapping Rain Water |
☆ ☆ ☆ |
36% |
|
| 43 |
Multiply Strings |
☆ ☆ |
27% |
|
| 44 |
Wildcard Matching |
☆ ☆ ☆ |
20% |
❤ |
| 45 |
Jump Game II |
☆ ☆ ☆ |
26% |
|
| 46 |
Permutations |
☆ ☆ |
44% |
|
| 47 |
Permutations II |
☆ ☆ |
33% |
|
| 48 |
Rotate Image |
☆ ☆ |
38% |
|
| 49 |
Group Anagrams |
☆ ☆ |
35% |
❤ |
| 50 |
Pow(x, n) |
☆ ☆ |
26% |
|
| 51 |
N-Queens |
☆ ☆ ☆ |
31% |
|
| 52 |
N-Queens II |
☆ ☆ ☆ |
45% |
|
| 53 |
Maximum Subarray |
☆ |
39% |
❤ |
| 54 |
Spiral Matrix |
☆ ☆ |
26% |
❤ |
| 55 |
Jump Game |
☆ ☆ |
29% |
|
| 56 |
Merge Intervals |
☆ ☆ |
30% |
❤ |
| 57 |
Insert Interval |
☆ ☆ ☆ |
27% |
|
| 58 |
Length of Last Word |
☆ |
31% |
|
| 59 |
Spiral Matrix II |
☆ ☆ |
39% |
❤ |
| 60 |
Permutation Sequence |
☆ ☆ |
28% |
|
| 61 |
Rotate List |
☆ ☆ |
24% |
❤ |
| 62 |
Unique Paths |
☆ ☆ |
41% |
❤ |
| 63 |
Unique Paths II |
☆ ☆ |
31% |
|
| 64 |
Minimum Path Sum |
☆ ☆ |
38% |
|
| 65 |
Valid Number |
☆ ☆ ☆ |
12% |
|
| 66 |
Plus One |
☆ |
38% |
|
| 67 |
Add Binary |
☆ |
32% |
|
| 68 |
Text Justification |
☆ ☆ ☆ |
19% |
|
| 69 |
Sqrt(x) |
☆ |
27% |
|
| 70 |
Climbing Stairs |
☆ |
40% |
|
| 71 |
Simplify Path |
☆ ☆ |
25% |
|
| 72 |
Edit Distance |
☆ ☆ ☆ |
31% |
❤ |
| 73 |
Set Matrix Zeroes |
☆ ☆ |
35% |
❤ |
| 74 |
Search a 2D Matrix |
☆ ☆ |
34% |
|
| 75 |
Sort Colors |
☆ ☆ |
38% |
❤ |
| 76 |
Minimum Window Substring |
☆ ☆ ☆ |
25% |
❤ |
| 77 |
Combinations |
☆ ☆ |
39% |
|
| 78 |
Subsets |
☆ ☆ |
41% |
❤ |
| 79 |
Word Search |
☆ ☆ |
26% |
|
| 80 |
Remove Duplicates from Sorted Array II |
☆ ☆ |
36% |
❤ |
| 81 |
Search in Rotated Sorted Array II |
☆ ☆ |
32% |
|
| 82 |
Remove Duplicates from Sorted List II |
☆ ☆ |
29% |
❤ |
| 83 |
Remove Duplicates from Sorted List |
☆ |
39% |
|
| 84 |
Largest Rectangle in Histogram |
☆ ☆ ☆ |
26% |
❤ |
| 85 |
Maximal Rectangle |
☆ ☆ ☆ |
28% |
❤ |
| 86 |
Partition List |
☆ ☆ |
32% |
|
| 87 |
Scramble String |
☆ ☆ ☆ |
29% |
❤ |
| 88 |
Merge Sorted Array |
☆ |
32% |
|
| 89 |
Gray Code |
☆ ☆ |
41% |
|
| 90 |
Subsets II |
☆ ☆ |
36% |
❤ |
| 91 |
Decode Ways |
☆ ☆ |
19% |
❤ |
| 92 |
Reverse Linked List II |
☆ ☆ |
30% |
|
| 93 |
Restore IP Addresses |
☆ ☆ |
27% |
❤ |
| 94 |
Binary Tree Inorder Traversal |
☆ ☆ |
46% |
|
| 95 |
Unique Binary Search Trees II |
☆ ☆ |
31% |
❤ |
| 96 |
Unique Binary Search Trees |
☆ ☆ |
41% |
|
| 97 |
Interleaving String |
☆ ☆ ☆ |
24% |
❤ |
| 98 |
Validate Binary Search Tree |
☆ ☆ |
23% |
❤ |
| 99 |
Recover Binary Search Tree |
☆ ☆ ☆ |
29% |
❤ |
| 100 |
Same Tree |
☆ |
46% |
|
| 101 |
Symmetric Tree |
☆ |
38% |
❤ |
| 102 |
Binary Tree Level Order Traversal |
☆ ☆ |
40% |
|
| 103 |
Binary Tree Zigzag Level Order Traversal |
☆ ☆ |
34% |
|
| 104 |
Maximum Depth of Binary Tree |
☆ |
52% |
|
| 105 |
Construct Binary Tree from Preorder and Inorder Traversal |
☆ ☆ |
32% |
❤ |
| 106 |
Construct Binary Tree from Inorder and Postorder Traversal |
☆ ☆ |
32% |
❤ |
| 107 |
Binary Tree Level Order Traversal II |
☆ |
40% |
|
| 108 |
Convert Sorted Array to Binary Search Tree |
☆ |
42% |
|
| 109 |
Convert Sorted List to Binary Search Tree |
☆ ☆ |
34% |
|
| 110 |
Balanced Binary Tree |
☆ |
37% |
|
| 111 |
Minimum Depth of Binary Tree |
☆ |
33% |
|
| 112 |
Path Sum |
☆ |
34% |
|
| 113 |
Path Sum II |
☆ ☆ |
33% |
|
| 114 |
Flatten Binary Tree to Linked List |
☆ ☆ |
35% |
❤ |
| 115 |
Distinct Subsequences |
☆ ☆ ☆ |
31% |
❤ |
| 118 |
Pascal's Triangle |
☆ |
38% |
|
| 119 |
Pascal's Triangle II |
☆ |
37% |
|
| 120 |
Triangle |
☆ ☆ |
33% |
❤ |
| 121 |
Best Time to Buy and Sell Stock |
☆ |
41% |
|
| 122 |
Best Time to Buy and Sell Stock II |
☆ |
47% |
|
| 123 |
Best Time to Buy and Sell Stock III |
☆ ☆ ☆ |
29% |
|
| 124 |
Binary Tree Maximum Path Sum |
☆ ☆ ☆ |
26% |
❤ |
| 125 |
Valid Palindrome |
☆ |
26% |
|
| 126 |
Word Ladder II |
☆ ☆ ☆ |
14% |
❤ |
| 127 |
Word Ladder |
☆ ☆ |
19% |
|
| 152 |
Maximum Product Subarray |
☆ ☆ |
25% |
❤ |
| 153 |
Find Minimum in Rotated Sorted Array |
☆ ☆ |
40% |
|
| 154 |
Find Minimum in Rotated Sorted Array II |
☆ ☆ ☆ |
37% |
|
| 162 |
Find Peak Element |
☆ ☆ |
37% |
|
| 167 |
Two Sum II - Input array is sorted |
☆ |
47% |
|
| 169 |
Majority Element |
☆ |
46% |
❤ |
| 188 |
Best Time to Buy and Sell Stock IV |
☆ ☆ ☆ |
24% |
❤ |
| 189 |
Rotate Array |
☆ |
24% |
|
| 206 |
Reverse Linked List |
☆ |
45% |
|
| 209 |
Minimum Size Subarray Sum |
☆ ☆ |
30% |
|
| 216 |
Combination Sum III |
☆ ☆ |
45% |
|
| 217 |
Contains Duplicate |
☆ |
45% |
|
| 219 |
Contains Duplicate II |
☆ |
32% |
|
| 228 |
Summary Ranges |
☆ ☆ |
30% |
|
| 229 |
Majority Element II |
☆ ☆ |
28% |
❤ |
| 238 |
Product of Array Except Self |
☆ ☆ |
49% |
|
| 268 |
Missing Number |
☆ |
44% |
|
| 283 |
Move Zeroes |
☆ |
50% |
|
| 287 |
Find the Duplicate Number |
☆ ☆ |
43% |
❤ |
| 289 |
Game of Life |
☆ ☆ |
37% |
❤ |
| 380 |
Insert Delete GetRandom O(1) |
☆ ☆ |
39% |
❤ |
| 381 |
Insert Delete GetRandom O(1) - Duplicates allowed |
☆ ☆ ☆ |
28% |
❤ |
| 414 |
Third Maximum Number |
☆ |
27% |
|
| 437 |
Path Sum III |
☆ |
39% |
❤ |
| 442 |
Find All Duplicates in an Array |
☆ ☆ |
55% |
|
| 448 |
Find All Numbers Disappeared in an Array |
☆ |
51% |
|
| 485 |
Max Consecutive Ones |
☆ |
53% |
|
| 495 |
Teemo Attacking |
☆ ☆ |
51% |
|
| 526 |
Beautiful Arrangement |
☆ ☆ |
54% |
❤ |
| 532 |
K-diff Pairs in an Array |
☆ |
28% |
|
| 560 |
Subarray Sum Equals K |
☆ ☆ |
40% |
❤ |
| 561 |
Array Partition I |
☆ |
67% |
|
| 565 |
Array Nesting |
☆ ☆ |
49% |
|
| 566 |
Reshape the Matrix |
☆ |
58% |
|
| 581 |
Shortest Unsorted Continuous Subarray |
☆ |
29% |
❤ |
| 605 |
Can Place Flowers |
☆ |
30% |
❤ |
| 611 |
Valid Triangle Number |
☆ ☆ |
41% |
❤ |
| 621 |
Task Scheduler |
☆ ☆ |
42% |
❤ |
| 628 |
Maximum Product of Three Numbers |
☆ |
45% |
❤ |
| 639 |
Decode Ways II |
☆ ☆ ☆ |
23% |
|
| 643 |
Maximum Average Subarray I |
☆ |
37% |
|
| 661 |
Image Smoother |
☆ |
46% |
|
| 667 |
Beautiful Arrangement II |
☆ ☆ |
51% |
|