Count Nodes

Easy Circular Linked List
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Problem Statement

Write a C program to count the total number of nodes in a circular linked list.

Input Format

First line contains n. Second line contains n integers.

Output Format

Print the total node count.

Constraints

1 <= n <= 100

Sample Input

5
2 4 6 8 10

Sample Output

5

Explanation

Traverse the circular linked list starting from head using a do-while loop while incrementing a node counter.

Starter Code

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

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

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        // Write your code here to count nodes in circular linked list
    }
    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