Cvent Coding Round 2026-January | String Parsing & Stacks | Valid Parentheses

Question: Valid Parentheses 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 are closed by the same type of brackets, and open brackets are closed in the correct order. Input Format The first line contains T - the number of test cases. The next T lines each contain a string s. Output Format Print True if the ...