Valid Parentheses

EASY

Problem⌘ K

StackString

Valid Parentheses

Given a string containing only the characters '(', ')', '{', '}', '[' and ']', determine whether the input string is valid. Every opening bracket must close in the correct order.

Example

Input s = "{[]}"

Output true

Constraints

• 1 ≤ s.length ≤ 10⁴.• s contains only bracket characters.

Think about

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#include <stdbool.h>

bool isValid(const char* s) {
    // TODO: use a stack to match closing brackets
    return false;
}

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