| 0001 |
Two Sum |
Java |
42.47% |
Easy |
|
| 0002 |
Add Two Numbers |
Java |
30.72% |
Medium |
|
| 0003 |
Longest Substring Without Repeating Characters |
Java |
28.06% |
Medium |
|
| 0004 |
Median of Two Sorted Arrays |
Java |
25.71% |
Hard |
|
| 0005 |
Longest Palindromic Substring |
Java |
26.76% |
Medium |
|
| 0006 |
ZigZag Conversion |
Java |
30.92% |
Medium |
|
| 0007 |
Reverse Integer |
Java |
25.20% |
Easy |
|
| 0008 |
String to Integer (atoi) |
Java |
14.53% |
Medium |
|
| 0009 |
Palindrome Number |
Java |
42.28% |
Easy |
|
| 0011 |
Container With Most Water |
Java |
43.00% |
Medium |
|
| 0012 |
Integer to Roman |
Java |
50.01% |
Medium |
|
| 0013 |
Roman to Integer |
Java |
51.76% |
Easy |
|
| 0014 |
Longest Common Prefix |
Java |
33.10% |
Easy |
|
| 0015 |
3Sum |
Java |
23.58% |
Medium |
|
| 0016 |
3Sum Closest |
Java |
41.59% |
Medium |
|
| 0017 |
Letter Combinations of a Phone Number |
Java |
40.65% |
Medium |
|
| 0018 |
4Sum |
Java |
29.88% |
Medium |
|
| 0019 |
Remove Nth Node From End of List |
Java |
34.04% |
Medium |
|
| 0020 |
Valid Parentheses |
Java |
36.03% |
Easy |
|
| 0021 |
Merge Two Sorted Lists |
Java |
46.14% |
Easy |
|
| 0022 |
Generate Parentheses |
Java |
53.50% |
Medium |
|
| 0023 |
Merge k Sorted Lists |
Java |
33.29% |
Hard |
|
| 0024 |
Swap Nodes in Pairs |
Java |
43.49% |
Medium |
|
| 0025 |
Reverse Nodes in k-Group |
Java |
35.56% |
Hard |
|
| 0026 |
Remove Duplicates from Sorted Array |
Java |
39.85% |
Easy |
|
| 0027 |
Remove Element |
Java |
43.78% |
Easy |
|
| 0028 |
Implement strStr() |
Java |
31.39% |
Easy |
|
| 0029 |
Divide Two Integers |
Java |
16.13% |
Medium |
|
| 0030 |
Substring with Concatenation of All Words |
Java |
23.24% |
Hard |
|
| 0031 |
Next Permutation |
Java |
30.10% |
Medium |
|
| 0032 |
Longest Valid Parentheses |
Java |
25.02% |
Hard |
|
| 0033 |
Search in Rotated Sorted Array |
Java |
32.69% |
Medium |
|
| 0034 |
Find First and Last Position of Element in Sorted Array |
Java |
33.08% |
Medium |
|
| 0035 |
Search Insert Position |
Java |
40.52% |
Easy |
|
| 0036 |
Valid Sudoku |
Java |
42.10% |
Medium |
|
| 0037 |
Sudoku Solver |
Java |
35.83% |
Hard |
|
| 0038 |
Count and Say |
Java |
39.71% |
Easy |
|
| 0039 |
Combination Sum |
Java |
47.06% |
Medium |
|
| 0040 |
Combination Sum II |
Java |
40.44% |
Medium |
|
| 0042 |
Trapping Rain Water |
Java |
42.18% |
Hard |
|
| 0043 |
Multiply Strings |
Java |
30.08% |
Medium |
|
| 0046 |
Permutations |
Java |
53.75% |
Medium |
|
| 0047 |
Permutations II |
Java |
39.41% |
Medium |
|
| 0051 |
N-Queens |
Java |
38.00% |
Hard |
|
| 0052 |
N-Queens II |
Java |
50.93% |
Hard |
|
| 0053 |
Maximum Subarray |
Java |
42.98% |
Easy |
|
| 0062 |
Unique Paths |
Java |
46.63% |
Medium |
|
| 0063 |
Unique Paths II |
Java |
33.24% |
Medium |
|
| 0064 |
Minimum Path Sum |
Java |
45.81% |
Medium |
|
| 0065 |
Valid Number |
Java |
13.83% |
Hard |
|
| 0070 |
Climbing Stairs |
Java |
43.63% |
Easy |
|
| 0077 |
Combinations |
Java |
46.30% |
Medium |
|
| 0078 |
Subsets |
Java |
51.36% |
Medium |
|
| 0079 |
Word Search |
Java |
30.56% |
Medium |
|
| 0090 |
Subsets II |
Java |
41.62% |
Medium |
|
| 0094 |
Binary Tree Inorder Traversal |
Java |
55.37% |
Medium |
|
| 0096 |
Unique Binary Search Trees |
Java |
45.32% |
Medium |
|
| 0098 |
Validate Binary Search Tree |
Java |
25.33% |
Medium |
|
| 0100 |
Same Tree |
Java |
49.53% |
Easy |
|
| 0102 |
Binary Tree Level Order Traversal |
Java |
47.32% |
Medium |
|
| 0103 |
Binary Tree Zigzag Level Order Traversal |
Java |
40.69% |
Medium |
|
| 0104 |
Maximum Depth of Binary Tree |
Java |
59.45% |
Easy |
|
| 0107 |
Binary Tree Level Order Traversal II |
Java |
45.84% |
Easy |
|
| 0110 |
Balanced Binary Tree |
Java |
40.48% |
Easy |
|
| 0111 |
Minimum Depth of Binary Tree |
Java |
34.93% |
Easy |
|
| 0112 |
Path Sum |
Java |
37.17% |
Easy |
|
| 0113 |
Path Sum II |
Java |
39.66% |
Medium |
|
| 0114 |
Flatten Binary Tree to Linked List |
Java |
41.33% |
Medium |
|
| 0121 |
Best Time to Buy and Sell Stock |
Java |
46.44% |
Easy |
|
| 0122 |
Best Time to Buy and Sell Stock II |
Java |
51.09% |
Easy |
|
| 0131 |
Palindrome Partitioning |
Java |
39.83% |
Medium |
|
| 0145 |
Binary Tree Postorder Traversal |
Java |
47.21% |
Hard |
|
| 0155 |
Min Stack |
Java |
35.92% |
Easy |
|
| 0198 |
House Robber |
Java |
40.83% |
Easy |
|
| 0204 |
Count Primes |
Java |
28.40% |
Easy |
|
| 0215 |
Kth Largest Element in an Array |
Java |
46.36% |
Medium |
|
| 0226 |
Invert Binary Tree |
Java |
57.24% |
Easy |
|
| 0230 |
Kth Smallest Element in a BST |
Java |
50.21% |
Medium |
|
| 0283 |
Move Zeroes |
Java |
53.76% |
Easy |
|
| 0303 |
Range Sum Query - Immutable |
Java |
36.89% |
Easy |
|
| 0338 |
Counting Bits |
Java |
64.11% |
Medium |
|
| 0343 |
Integer Break |
Java |
47.40% |
Medium |
|
| 0392 |
Is Subsequence |
Java |
46.27% |
Medium |
|
| 0413 |
Arithmetic Slices |
Java |
55.39% |
Medium |
|
| 0416 |
Partition Equal Subset Sum |
Java |
40.02% |
Medium |
|
| 0448 |
Find All Numbers Disappeared in an Array |
Java |
52.85% |
Easy |
|
| 0461 |
Hamming Distance |
Java |
70.08% |
Easy |
|
| 0485 |
Max Consecutive Ones |
Java |
54.59% |
Easy |
|
| 0500 |
Keyboard Row |
Java |
61.76% |
Easy |
|
| 0501 |
Find Mode in Binary Search Tree |
Java |
38.99% |
Easy |
|
| 0526 |
Beautiful Arrangement |
Java |
54.07% |
Medium |
|
| 0547 |
Friend Circles |
Java |
52.78% |
Medium |
|
| 0561 |
Array Partition I |
Java |
68.42% |
Easy |
|
| 0566 |
Reshape the Matrix |
Java |
58.52% |
Easy |
|
| 0595 |
Big Countries |
|
73.20% |
Easy |
|
| 0617 |
Merge Two Binary Trees |
Java |
69.36% |
Easy |
|
| 0627 |
Swap Salary |
|
67.22% |
Easy |
|
| 0637 |
Average of Levels in Binary Tree |
Java |
58.16% |
Easy |
|
| 0646 |
Maximum Length of Pair Chain |
Java |
48.15% |
Medium |
|
| 0647 |
Palindromic Substrings |
Java |
56.10% |
Medium |
|
| 0652 |
Find Duplicate Subtrees |
Java |
44.50% |
Medium |
|
| 0657 |
Robot Return to Origin |
Java |
70.89% |
Easy |
|
| 0667 |
Beautiful Arrangement II |
Java |
51.52% |
Medium |
|
| 0669 |
Trim a Binary Search Tree |
Java |
59.87% |
Easy |
|
| 0671 |
Second Minimum Node In a Binary Tree |
Java |
43.47% |
Easy |
|
| 0684 |
Redundant Connection |
Java |
50.50% |
Medium |
|
| 0695 |
Max Area of Island |
Java |
56.21% |
Medium |
|
| 0717 |
1-bit and 2-bit Characters |
Java |
48.94% |
Easy |
|
| 0746 |
Min Cost Climbing Stairs |
Java |
46.24% |
Easy |
|
| 0766 |
Toeplitz Matrix |
Java |
61.32% |
Easy |
|
| 0771 |
Jewels and Stones |
Java |
82.80% |
Easy |
|
| 0832 |
Flipping an Image |
Java |
71.72% |
Easy |
|
| 0877 |
Stone Game |
Java |
60.56% |
Medium |
|
| 1005 |
Maximize Sum Of Array After K Negations |
Java |
49.00% |
Easy |
|
| 1006 |
Clumsy Factorial |
Java |
54.96% |
Medium |
|
| 1007 |
Minimum Domino Rotations For Equal Row |
Java |
47.60% |
Medium |
|
| 1008 |
Construct Binary Search Tree from Preorder Traversal |
Java |
72.88% |
Medium |
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