CONTOH PROGRAM QUEUE PADA BAHASA C

#include "stdio.h"
#include "stdlib.h"
#define MAX 5

int queue[MAX];
int front = -1;
int rear = -1;

main() {
int pil;
clrscr();
while(1){
clrscr();
printf("\n+-------------------+\n");
printf("|       Menu        |\n");
printf("+-------------------+\n");
printf("| 1. Insert Queue   |\n");
printf("| 2. Delete Queue   |\n");
printf("| 3. Display Queue  |\n");
printf("| 4. Exit           |\n");
printf("+-------------------+\n");
printf("Masukkan Pilihan : ");
scanf("%d", &pil);

switch(pil){
case 1 :
clrscr();
insert();
break;
case 2 :
clrscr();
del();
break;
case 3 :
clrscr();
display();
break;
case 4 :
exit(1);
break;
default :
printf("\nInput Salah !"); } } }

insert() {
int add;
clrscr();
if(rear==MAX-1){
printf("Queue Overflow !!!\n");}
else {
if(front==-1)
front = 0;
printf("Masukkan Nilai Elemen Queue : ");
scanf("%d",&add);
rear=rear+1;
queue[rear] = add; } }

del() {
clrscr();
if (front==-1 || front > rear) {
printf("Queue Underflow \n");
return;
} else {
printf("Element Queue yang di Delete adalah : %d \n", queue[front]);
front=front+1;
getch(); } }

display() {
int i;
clrscr();
if (front == -1){
printf("Queue kosong\n");
}else {
printf("Nilai Element Queue Adalah : \n");
for(i=front;i<=rear;i++){
printf("%d",queue[i]);
printf(" ");} }
getch(); }

Kalo ingin melihat output programnya klik disini.