lab1.1 c++

#include <iostream>

using namespace std;

int main()
{
    int radius, side = 0;
    cout << "The program will determine whether the circle fits into the square.\n";
    bool IsCorrect;
    cout << "Enter radius: ";
    do
    {
        IsCorrect = false;
        cin >> radius;
        if ((cin.fail()) or (radius < 0) or (radius == 0))
        {
            IsCorrect = true;
            cout << "Incorrect value. Enter the number: ";
        }
        cin.clear();
        while (cin.get() != '\n');
    } while (IsCorrect);
    cout << "Enter side: ";
    do
    {
        IsCorrect = false;
        cin >> side;
        if ((cin.fail()) or (side < 0) or (side == 0))
        {
            IsCorrect = true;
            cout << "Incorrect value. Enter the number: ";
        }
        cin.clear();
        while (cin.get() != '\n');
    } while (IsCorrect);
    if (radius * 2 < side)
    {
        cout << "Fit in.\n" << endl;
    }
    else
    {
        cout << "Not fit in.\n" << endl;
    }
    return 0;
}