C++ program to implement Queue

// Implementation of Queue #include using namespace std; static int front, rear, size; static int q[100]; void pop(); void push(int n); void showQueue(); void push(int n) { if (rear==(size-1)){ cout << "Queue full." << endl; } else if ((front==-1) && (rear == -1)){ front = rear = 0; q[front] = n; } else { q[++rear] = n; } showQueue(); } void pop() { if (rear==-1 && front==-1) cout << "Queue empty." << endl; else if (front==rear && front!=-1) front = rear = -1; else for (int i=0; i> choice; switch(choice) { case 1: { cout << "Enter number to add: "; int n; cin >> n; push(n); break; } case 2: { pop(); break; } case 3: { exit = 1; break; } default: break; } } } // aiuto