program to insert & delete the elemnts from queue.

//Write a prgram to insert & delete the elemnts from queue

#include

#include

#include

class queue

{

	private:

		int i,r,q[25],front,rear;

	public:

		void enqueue(int);

		void dequeue();

		void getdata();

};

void queue::getdata()

{

	clrscr();

	cout<	cin>>r;

	cout<	for(i=0;i	{

		cin>>q[i];

	}

	front=q[0];

	rear=q[2];

}

void queue::dequeue()

{

	int item;

	if(front==0)

	{

		cout<		exit(0);

	}

	else

	{

		item=q[1];

	}

	if(front==rear)

	{

		front=0;

		rear=0;

	}

	else

	{

		front=front+1;

	}

	cout<	for(i=0;i	{

		cout<<"\t"<	}

}

void queue::enqueue(int item)

{

	if(rear==r)

	{

		cout<		exit(0);

	}

	else

	{

		if(rear==0 &&front==0)

		{

			front=1;

			rear=1;

		}

		r=r+1;

		q[r]=item;

	}

	cout<	for(i=0;i	{

		cout<<"\t"<	}

}

void main()

{

	int ch,no;

	clrscr();

	char cho;

	queue q;

	q.getdata();

	cout<	cout<<"want to perform on queue:";

	cout<	cout<	cin>>ch;

	do

	{

		switch(ch)

		{

			case 1:

				cout<				cin>>no;

				q.enqueue(no);

				break;

			case 2:

				q.dequeue();

				break;

		}

	cout<	cin>>cho;

	}

	while(cho=='y'||cho=='Y');

}

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