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

Programming Exercises

Write a function to generate all valid combinations of parentheses

Hard

Problem Statement

Write a function to generate all valid combinations of parentheses

Sample Input

n = 3

Sample Output

[((())), (()()), (())(), ()(()), ()()()]

Limits

Time: 2s · Memory: 256 MB

Code Editor
00:00
import java.util.*; public class Main { public static List<String> generateParenthesis() { int n = 3; // Your code here return new ArrayList<>(); } }
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Input
n = 3
Expected Output
[((())), (()()), (())(), ()(()), ()()()]