My LeetCode code.

1. Two Sum: C

2. Add Two Numbers: C

3. Longest Substring Without Repeating Characters: C

4. Median of Two Sorted Arrays: C++

5. Longest Palindromic Substring: C++

6. ZigZag Conversion: C++

7. Reverse Integer: C++

8. String to Integer (atoi): C++

9. Palindrome Number: C++

11. Container With Most Water: C++

12. Integer to Roman: C++

13. Roman to Integer: C++

14. Longest Common Prefix: C++

15. 3Sum: C++

16. 3Sum Closest: C++

17. Letter Combinations of a Phone Number: C++

18. 4Sum: C++

19. Remove Nth Node From End of List: C++

20. Valid Parentheses: C++

21. Merge Two Sorted Lists: C++

22. Generate Parentheses: C++

24. Swap Nodes in Pairs: C++

26. Remove Duplicates from Sorted Array: C++

27. Remove Element: C++

28. Implement strStr(): C++

29. Divide Two Integers: C++

31. Next Permutation: C++

32. Longest Valid Parentheses: C++

33. Search in Rotated Sorted Array: C++

34. Search for a Range: C++

35. Search Insert Position: C++

36. Valid Sudoku: C++

38. Count and Say： C++

39. Combination Sum: C++

40. Combination Sum II: C++

43. Multiply Strings: C++

46. Permutations: C++

47. Permutations II: C++

48. Rotate Image: C++

49. Group Anagrams: C++

50. Pow(x, n): C++

53. Maximum Subarray: C++

54. Spiral Matrix: C++

55. Jump Game: C++

56. Merge Intervals: C++

58. Length of Last Word: C++

59. Spiral Matrix II: C++

60. Permutation Sequence: C++

61. Rotate List: C++

62. Unique Paths: C++

63. Unique Paths II: C++

64. Minimum Path Sum: C++

66. Plus One: C++

67. Add Binary: C++

69. Sqrt(x): C++

70. Climbing Stairs: C++

71. Simplify Path: C++

73. Set Matrix Zeroes: C++

74. Search a 2D Matrix: C++

75. Sort Colors: C++

77. Combinations: C++

78. Subsets: C++