Create Circular List

Easy Circular Linked List
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Problem Statement

Write a C program to create a circular linked list with two nodes where the last node’s next pointer points back to the head node, and print both values.

Input Format

Two space-separated integers for the two nodes.

Output Format

Print the data of both nodes separated by a space.

Constraints

Standard integer limits

Sample Input

10 20

Sample Output

10 20

Explanation

Create two nodes, link `node1->next = node2`, `node2->next = node1` to form a circular structure, and print their data fields.

Starter Code

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

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

int main() {
    int val1, val2;
    if (scanf("%d %d", &val1, &val2) == 2) {
        // Write your code here to create circular linked list and print values
    }
    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