Return Value

Easy Functions
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Problem Statement

Write a C++ program defining a function that computes and returns the square of an integer.

Input Format

A single integer N.

Output Format

Print the squared value.

Constraints

-1000 <= N <= 1000

Sample Input

12

Sample Output

144

Explanation

Uses a function with a return type to pass computation results back to main.

Starter Code

#include <iostream>

// Define square function here

int main() {
    int n;
    if (std::cin >> n) {
        // Call square and print result
    }
    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