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queue.cpp
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queue.cpp
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#include<iostream>
using namespace std;
class Queue
{
private:
int* data;
int* front;
int* rear;
int size;
public:
Queue(int maxSize)
{
data = new int[maxSize];
front = new int;
rear = new int;
size = 0;
*front = -1;
*rear = -1;
}
~Queue()
{
delete[]data;
delete front;
delete rear;
}
void enQueue(int value)
{
if (size == this->size)
{
cout << "Queue is full!" << endl;
return;
}
*(rear + 1) = value;
rear++;
size++;
}
int deQueue()
{
if (size == 0)
{
cout << "Queue is empty!" << endl;
return -1;
}
int value = *(front);
front++;
size--;
return value;
}
int getSize()
{
return size;
}
};
int main()
{
Queue q(5);
q.enQueue(1);
q.enQueue(2);
q.enQueue(3);
q.enQueue(17);
q.enQueue(18);
q.enQueue(23);
q.enQueue(24);
cout << "Size: " << q.getSize() << endl;
cout << "Dequeue: " << q.deQueue() << endl;
cout << "Dequeue: " << q.deQueue() << endl;
return 0;
}