i need to keep entering in the terminal

gabzz29 (25)
when i put an int in terminal nothings happening, then after a few enter it will show result but the res is wrong
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 #include <iostream>
using namespace std;

int main (){
    cout << "Calculator 2.0";
    char again = 'Y';

    while(again == 'y' || again == 'Y'){
        double x,y,ans;
        int op;
        cout << "1.Addition\n";
        cout << "2.Substraction\n";
        cout << "3.Multiplication\n";
        cout << "4.Division\n";
        cout << "Enter an operation:";
        cin >> op;
        cout << "Enter two digits:";
        cin >> x >> y;

        while(!(cin >> op)){
            cout << "Only choose above choices:";
            cin.clear();
            cin.ignore(100, '\n');
        }

        while(!(cin >> x >> y)){
            cout << "Must be a number:";
            cin.clear();
            cin.ignore(100, '\n');
        }

        switch(op){
            case 1:
            ans = x + y;
            cout << x << " + " << y << " = " << ans;
            cout << "Calculate again? [Y/N]";
            cin >> again;
            break;
            case 2:
            ans = x - y;
            cout << x << " - " << y << " = " << ans;
            cout << "Calculate again? [Y/N]";
            cin >> again;
            break;
            case 3:
            ans = x * y;
            cout << x << " * " << y << " = " << ans;
            cout << "Calculate again? [Y/N]";
            cin >> again;
            break;
            case 4:
            ans = x / y;
            cout << x << " / " << y << " = " << ans;
            cout << "Calculate again? [Y/N]";
            cin >> again;
            break;
        }


    }
}.
kbw (9488)
Remove your input validation or fix it. It's not doing what you think it is.
kbw (9488)
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