Create First Node

Easy Singly Linked List: Basics
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Problem Statement

Write a C program to create a single node of a linked list containing an integer data field and a next pointer, set its data, and print it.

Input Format

An integer value for the node data.

Output Format

Print the node data.

Constraints

Standard integer limits

Sample Input

42

Sample Output

42

Explanation

Define a structure for the node, allocate memory dynamically, assign the input data, and print the stored field.

Starter Code

#include <stdio.h>
#include <stdlib.h>

struct Node {
    int data;
    struct Node *next;
};

int main() {
    int val;
    if (scanf("%d", &val) == 1) {
        // Write your code here to create the first node and print its data
    }
    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