Solve leetcode problems
Easy problems:
- 1. Two Sum
- 7. Reverse Integer
- 9. Palindrome Number
- 13. Roman to Integer
- 14. Longest Common Prefix
- 20. Valid Parentheses
- 21. Merge Two Sorted Lists
- 26. Remove Duplicates from Sorted Array
- 27. Remove Element
- 125. Valid Palindrome
- 1089. Duplicate Zeros
- 1614. Maximum Nesting Depth of the Parentheses
- 1672. Richest Customer Wealth
Medium problems:
Hard problems: