Easy |
1. Two Sum |
Solution |
|
Medium |
2. Add Two Numbers/ |
Solution |
|
Medium |
3. Longest Substring Without Repeating Characters |
Solution |
|
Hard |
4. Median of Two Sorted Arrays |
Solution |
|
Hard |
4. Median of Two Sorted Arrays |
Solution |
python |
Medium |
5. Longest Palindramic Substring |
Solution |
|
Medium |
6. ZigZag Conversion |
Solution |
1 |
Medium |
6. ZigZag Conversion |
Solution |
2 |
Easy |
7. Reverse Integer |
Solution |
|
Medium |
8. String to Integer(atoi) |
Solution |
|
Easy |
9. Palindrome Number |
Solution |
|
Hard |
10. Regular Expression Matching |
Solution |
大神解法 |
Hard |
10. Regular Expression Matching |
Solution |
大神解法 |
Hard |
10. Regular Expression Matching |
Solution |
my wrong answer |
Medium |
11. Container With Most Water |
Solution |
|
Easy |
35. Search Insert Position |
Solution |
Binary search |
Easy |
102. Binary Tree Level Order Traversal |
Solution |
Binary Tree |
Easy |
104. Maximum Depth of Binary Tree |
Solution |
Binary Tree |
Hard |
132. Palindrome Partitioning II |
Solution |
|
Hard |
135. Candy |
Solution |
|
Medium |
162. Find Peak Element |
Solution |
与852一个类型,这里的解法也一样 |
Medium |
338. Counting Bits |
Solution |
|
Medium |
343. Integer Break |
Solution |
DP |
Easy |
344. Reverse String |
Solution |
字符串 |
Easy |
412. Fizz Buzz |
Solution |
|
Medium |
413. Arithmetic Slices |
Solution |
DP |
Medium |
419. Battleships in a Board |
Solution |
|
Easy |
429. N-ary Tree Level Order Traversal |
Solution |
Tree |
Easy |
442. Find All Duplicates in an Array |
Solution |
要求不用辅助空间,时间O(n), 只能参考大神解法 |
Easy |
461. Hamming Distance |
Solution |
|
Easy |
463. Island Perimeter |
Solution |
|
Easy |
476. Number Complement |
Solution1,Solution2 |
移位运算 |
Easy |
500. Keyboard Row |
Solution |
|
Medium |
535. Encode and Decode TinyURL |
Solution |
|
Medium |
537. Complex Number Multiplication |
Solution |
|
Medium |
540. Single Element in a Sorted Array |
Solution |
二分查找 |
Easy |
557. Reverse Words in a String III |
Solution |
字符串 |
Easy |
559. Maximum Depth of N-ary Tree |
Solution-recursion |
求多叉树的深度,递归方法 |
Easy |
561. Array Partition I |
Solution |
|
Easy |
566. Reshape the Matrix |
Solution |
i/c,i%c |
Easy |
589. N-ary Tree Preorder Traversal |
Solution |
递归 |
Easy |
590. N-ary Tree Postorder Traversal |
Solution |
递归 |
Easy |
595. Big Countries |
Solution |
SQL |
Easy |
617. Merge Two Binary Trees |
Solution |
binary tree |
Medium |
647. Palindromic Substrings |
Solution |
DP |
Medium |
647. Palindromic Substrings |
Solution |
大神解法 |
Medium |
654. Maximum Binary Tree |
Solution |
|
Easy |
657. Robot Return to Origin |
Solution |
|
Easy |
682. Baseball Game |
Solution |
|
Easy |
700. Search in a Binary Search Tree |
Solution |
|
Medium |
701. Insert into a Binary Search Tree |
Solution |
|
Easy |
709. To Lower Case |
Solution |
|
Medium |
712. Minimum ASCII Delete Sum for Two Strings |
Solution |
DP |
Medium |
712. Minimum ASCII Delete Sum for Two Strings |
Solution |
my wrong answer |
Medium |
714. Best Time to Buy and Sell Stock with Transaction Fee |
Solution |
这道太难了,看了看大神的解法 |
Easy |
728. Self Dividing Numbers |
Solution |
|
Medium |
763. Partition Labels |
Solution |
|
Easy |
766. Toeplitz Matrix |
Solution |
太简单了 |
Easy |
771. Jewels and Stones |
Solution |
|
Medium |
[791. Custom Sort String](https://leetcode.com/problems/custom sort string/description/) |
Solution |
string |
Medium |
797. All Paths From Source to Target |
Solution |
Graph DFS |
Easy |
804. Unique Morse Code Words |
Solution |
|
Easy |
806. Number of Lines To Write String |
Solution |
|
Medium |
807. Max Increase to Keep City Skyline |
Solution |
|
Easy |
811. Subdomain Visit Count |
Solution |
被substr()坑惨了 |
Medium |
814. Binary Tree Prunning |
Solution |
|
Easy |
821. Shortest Distance to a Character |
Solution |
看了大神解法后自己写的 |
Easy |
832. Flipping an Image |
Solution |
|
Easy |
852. Peak Index in a Mountain Array |
Solution |
162 |
Medium |
861. Score After Flipping Matrix |
Solution |
|
Easy |
867. Transpose Matrix |
Solution |
|
Easy |
868. Binary Gap |
Solution |
|
Easy |
872. Leaf-Similar Trees |
Solution |
|
Easy |
876. Middle of the Linked List |
Solution |
|
Medium |
877. Stone Game |
Solution |
DP,但可以直接return true |
Easy |
883. Projection Area of 3D Shapes |
Solution |
|
Easy |
884. Uncommon Words from Two Sentences |
Solution |
|
Medium |
885. Spiral Matrix III |
Solution |
|
Medium |
890. Find and Replace Pattern |
Solution |
|
Medium |
893. Groups of Special-Equivalent Strings |
Solution |
|
Easy |
897. Increasing Order Search Tree |
Solution |
tree |
Easy |
905. Sort Array By Parity |
Solution |
|
Easy |
908. Smallest Range I |
Solution |
|
|
|
Solution |
|