#20 Valid Parentheses | Top Interview Questions | Ultimate Leetcode Challenge
Valid Parentheses
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Problem Statement - 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 4:
Input: s = "([)]"
Output: false
Example 5:
Input: s = "{[]}"
Output: true
Constraints:
s.length = [1, 104]
s consists of parentheses only '()[]{}'.
Link to the problem --- https://leetcode.com/problems/valid-p...
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