하루의 쉼터

Question : Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct order. Example 1:Input: s = "()"Output: true Example 2:Input: s = "()[]{}"Output: true Example 3:Input: s = "(]"Output: false Example ..