repo for leetcode.com challenges prectice
- 1 - dict - Two Sum: array of integers, find two that equal to target
- 2 - logic - Add Two Numbers: sum two numbers given as array of digits
- 5 - logic/string - Longest Palindromic Substring
- 9 - logic - is given integer palindrome
- 13 - logic - Roman to Int: convert given roman number to int
- 14 - logic - Longest Common Prefix
- 20 - logic - Valid Parentheses
- 26 - logic - Remove dublicats: sort array in-place
- 27 - logic - Remove Element: sort array in-place
- 28 - logic - Implement strStr(): find index of occurrence str in string
- 38 - logic - Count and Say
- 53 - logic - Maximum Subarray:
- 56 - logic/dict - Merge intervals
- 58 - logic - Length of Last Word: in given string
- 66 - logic - Plus one: int given as array of digits
- 75 - dict - Sort Colors: sort given array
- 121 - logic - Best Time to Buy and Sell Stock
- 125 - logic - Valid Palindrome
- 136 - dict - Single Number: find single number in given array
- 169 - dict - Majority Element: more frequent element in the array