Strings

• Longest Common Prefix

  Longest Common Prefix — find the longest common prefix among strings

• Longest Palindromic Substring

  Longest Palindromic Substring — find the longest palindromic substring

• String To Integer Atoi

  String to Integer (atoi) — convert a string to a 32-bit signed integer

• Valid Anagram

  Valid Anagram — check if two strings are anagrams of each other

• Valid Palindrome

  Valid Palindrome — check if string is a palindrome ignoring non-alnum and case