Factorial

Easy Loops
Solve in Playground →

Problem Statement

Write a C program to calculate the factorial of a given non-negative integer N.

Input Format

A single integer N.

Output Format

Print the factorial value.

Constraints

0 <= N <= 12

Sample Input

5

Sample Output

120

Explanation

5! = 5 * 4 * 3 * 2 * 1 = 120.

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