Print a square of stars recursively (n×n).
Difficulty: Hard
Phase: 3 · Recursion
XP Reward: 30 XP
Topics: Recursion, Hard
Supported Languages: Python, JavaScript, C, C++, Java
Problem Description
Given N, print an N x N square of asterisks '*' using recursion. Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).
Constraints
- -10^9 <= N <= 10^9
Examples
Example 1
Input: 3
Output: *** *** ***
Explanation: Sample execution for input 3