Enqueue

Easy Queue: Array Implementation
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Problem Statement

Write a C program to enqueue multiple elements into an array-based queue and print all elements from front to rear.

Input Format

First line contains n. Second line contains n space-separated integers to enqueue sequentially.

Output Format

Print elements from front to rear separated by spaces.

Constraints

1 <= n <= 50

Sample Input

4
10 20 30 40

Sample Output

10 20 30 40

Explanation

Enqueue each element sequentially, then traverse from front to rear to print elements in FIFO order.

Starter Code

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

#define MAX 100

struct Queue {
    int arr[MAX];
    int front;
    int rear;
};

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        // Write your code here to enqueue n elements and print queue from front to rear
    }
    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