Стек и очередь - C++ - Ответ 5307023

#include <iostream>
#include <stack>
using namespace std;
int main()
{
    stack <int> s;
    int choose=0,element;
 
    while (choose!=6)
    {
        
        if (choose == 1){cout << "Size of stack = " << s.size() << "\n";};
        if (choose == 2){cout << "Enter element = ";cin >> element;s.push(element);};
        if (choose == 3){s.pop();cout << "Complete\n";};
        if (choose == 4){if(s.size()==0)cout << "Stack emply\n";else cout << "Stack it is not emply\n";};
        if (choose == 5){ system("cls");};
        cout << "       Enter variant\n";
        cout << "   1 - Size of stack\n";
        cout << "   2 - Add element in stack\n";
        cout << "   3 - Delete element in stack\n";
        cout << "   4 - Empty stack\n";
        cout << "   5 - Clean screen\n";
        cout << "   6 - Exit\n";
        cout << "Your choose = ";cin >> choose;
    }
    if (choose == 6) cout << "  The End\n";
    system("pause");
}