Hourglass Pattern

Medium Pattern Printing
Solve in Playground →

Problem Statement

Write a C program to print an hourglass star pattern of 2N-1 rows.

Input Format

A single integer N.

Output Format

Print an hourglass pattern.

Constraints

1 <= N <= 10

Sample Input

3

Sample Output

* * *
 * *
  *
 * *
* * *

Explanation

Combines an inverted pyramid with an upright pyramid starting from the middle row.

Starter Code

#include <stdio.h>

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        // Write your code here
    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

Embedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used