Include Guards

Easy Preprocessor & Header Files
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Problem Statement

Demonstrate understanding of header include guards (`#ifndef`, `#define`, `#endif`) by writing a mock header structure outputting ‘Header Loaded’.

Input Format

None

Output Format

Print 'Header Loaded'.

Constraints

None

Sample Output

Header Loaded

Explanation

Include guards prevent multiple inclusions of header files.

Starter Code

#include <stdio.h>
#ifndef MY_HEADER_H
#define MY_HEADER_H
// Mock header content
#endif

int main() {
    // 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