fork download 
  1. /******************************************************************************
  2.  
  3. Welcome to GDB Online.
  4. GDB online is an online compiler and debugger tool for C/C++.
  5. Code, Compile, Run and Debug online from anywhere in world.
  6.  
  7. *******************************************************************************/
  8.  
  9.  
  10. #include <stdio.h>
  11. #define SIZE 5
  12.  
  13. int queue[SIZE];
  14. int front = -1, rear = -1;
  15.  
  16. // Enqueue function
  17. void enqueue(int value) {
  18.     if (rear == SIZE - 1)
  19.         printf("Queue is Full\n");
  20.     else {
  21.         if (front == -1) front = 0;
  22.         rear++;
  23.         queue[rear] = value;
  24.         printf("%d inserted\n", value);
  25.     }
  26. }
  27.  
  28. // Dequeue function
  29. void dequeue() {
  30.     if (front == -1 || front > rear)
  31.         printf("Queue is Empty\n");
  32.     else {
  33.         printf("%d deleted\n", queue[front]);
  34.         front++;
  35.     }
  36. }
  37.  
  38. // Display function
  39. void display() {
  40.     if (front == -1 || front > rear)
  41.         printf("Queue is Empty\n");
  42.     else {
  43.         printf("Queue: ");
  44.         for (int i = front; i <= rear; i++)
  45.             printf("%d ", queue[i]);
  46.         printf("\n");
  47.     }
  48. }
  49.  
  50. // Main function
  51. int main() {
  52.     enqueue(10);
  53.     enqueue(20);
  54.     enqueue(30);
  55.     display();
  56.  
  57.     dequeue();
  58.     display();
  59.  
  60.     enqueue(40);
  61.     display();
  62.  
  63.     return 0;
  64. }
  65.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin 
45
stdout 
10 inserted
20 inserted
30 inserted
Queue: 10 20 30 
10 deleted
Queue: 20 30 
40 inserted
Queue: 20 30 40
https://ideone.com/4enDjQ
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!