C
c
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#include <stdio.h>
#include <stdlib.h>
#define MAX_SIZE 100
int data[MAX_SIZE];
int front = -1;
int rear = -1;
void swap(int *p, int *q) {
int c;
c = *p;
*p = *q;
*q = c;
}
void enqueue() {
int item;
if (rear == MAX_SIZE - 1) {
printf("No Space Left\n");
exit(0);
} else {
printf("Enter Data: ");
scanf("%d", &item);
if ((rear == -1) && (front == -1)) {
front = 0;
}
rear++;
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