Leetcode 20: Valid Parenthesis
Category : Easy Problem 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. leetcode.com/problems/valid-parentheses/ Examples: Example 1
1 2 | Input: s = "()" Output: true |
Example 2
1 2 | Input: s = "()[]{}" Output: true |
Example 3
1 2 | Input: s = "(]" Output: false |
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