int front=0,rear=-1;
int cq[max],count=0;

void cqinsert()
{
int ele;

if(count==max)
{
printf(“cq is full\n”);
return;
}
printf(“enter the element\n”);
scanf(“%d”,&ele);
rear=(rear+1)%max;
cq[rear]=ele;
count++;
}
void cqdelete()
{
if(count==0)
{
printf(“cq is empty\n”);
return;
}
printf(“element deleted is %d”,cq[front]);
front =(front+1)%max;
count–;
}
void cqdisplay()
{
int j=front,i;
if(count==0)
{
printf(“cq is empty\n”);
return;
}
for(i=1;i<=count;i++)
{
printf("%d\t",cq[j]);
j=(j+1)%max;
}
}
void main()
{
int ch;
clrscr();
printf("1:insert 2:delete 3:display default :exit\n");
do

{
printf("enter choice\n");
scanf("%d",&ch);
switch(ch)
{
case 1: cqinsert();
break;
case 2: cqdelete();
break;
case 3: cqdisplay();
break;
case 4: exit(0);
}
}while(ch<=4) ;
getch();
}