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Valid Parentheses

Easy

Description

Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: 1. Open brackets must be closed by the same type of brackets. 2. Open brackets must be closed in the correct order. 3. Every close bracket has a corresponding open bracket of the same type.

Examples

Example 1:
Input: s = "()[]{}"
Output: true
Example 2:
Input: s = "(]"
Output: false
Example 3:
Input: s = "([])"
Output: true

Constraints

  • 1 <= s.length <= 10^4
  • s consists of parentheses only '()[]{}'
StringStack
solution.jsJavaScript (Node.js)
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Console

Test Results
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