include iostream using namespace std union coordinate int integer doub

#include <iostream>

using namespace std;

union coordinate {
    int integer;
    double _double;

    void init() {
        cin >> _double;
        if ((int) _double == _double) {
            integer = (int) _double;
        }
    }

    double get() {
        if (_double != NULL) return _double;
        return integer;
    }
};

struct coordinate_system {
    coordinate x;
    coordinate y;
};

struct another_system {
    coordinate x;
    coordinate y;
};

int main() {
    struct coordinate_system point;
    struct another_system point2;

    cout << "Enter value of x for point: ";
    point.x.init();

    cout << "Enter value of y for point: ";
    point.y.init();

    cout << "Entered data:" << endl << "x = " << point.x.get() << "; y = " << point.y.get() << endl;

    point2.x = point.x;
    point2.y = point.y;

    cout << "Copied data:" << endl << "x = " << point2.x.get() << "; y = " << point2.y.get() << endl;
}