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cir.c
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cir.c
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#include<stdio.h>
//#define max 10
#define true 1;
#define false 0;
int a[10],rear=-1,front=-1,max;
void enq(int item)
{
if(rear==max-1&&front==0)
{
printf("full queue");
}
if(front==-1)
{
front=0;
rear=0;
}
if(rear=max-1)
{
rear=0;
}
rear++;
a[rear]=item;
}
void deq(){
if(front==-1)
{
printf("quueue is emp10ty");
}
if(front==rear)
{
front=-1;
rear=-1;
}
if(front==max-1)
{
front=0;
}
front++;
}
void display()
{ int i;
if(front==-1)
{
printf("enpty");
}
if(front<=rear)
{
for(i=front;i<=rear;i++)
{printf("%d",a[i]);
}
for(i=front;i<=max;i++)
{
printf("%d",a[i]);
}
}
void re_display()
{
int i;
for(i=rear;i<front;i--)
{
printf("%d",a[i]);
}
}
int search(int item)
{
int i;
for(i=0;i<=max;i++)
{
if(a[i]==item)
return true;
}
}
int main()
{
int i;
scanf("%d",&max);
enq(4);
enq(5);
enq(6);
enq(6);
enq(6);
enq(9);
deq();
deq();
deq();
//display();
// re_display();
return 0;}