queue-array-simple

#include <iostream>

using namespace std;

int *q;
int head=0, tail=0;

void push (int x){
    tail++;
    q[tail]=x;

}

int pop(){
     head++;
     return q[head];
}
int main()
{
    q = new int[1000];
    q[0]=0;
    push(1);
    push(2);
    push(3);
    cout<<pop()<<endl;
    cout<<pop()<<endl;
    cout<<pop()<<endl;
    return 0;
}