Practice Real Company Assessment Patterns • Latest 2025–2026 Mock Tests

Programming Exercises

Write a function to check if a string is a valid parenthesis string.

Hard

Problem Statement

Write a function to check if a string is a valid parenthesis string.

Sample Input

()[]{}

Sample Output

True

Limits

Time: 2s · Memory: 256 MB

Code Editor
00:00
def is_valid_parenthesis(): s = "()[]{}" # Your code here return
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Input
()[]{}
Expected Output
True