include iostream using namespace std union point int decimal double _f

#include <iostream>

using namespace std;

union point {
    int decimal;
    double _float;

    void init() {
        cin >> _float;
        if ((int) _float == _float) {
            decimal = (int) _float;
        }
    }

    double get() {
        if (_float != NULL) return _float;
        return decimal;
    }
};

struct points {
    point x;
    point y;
    point z;
};

int main() {
    struct points point;

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

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

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

    cout << "x = " << point.x.get() << endl;
    cout << "y = " << point.y.get() << endl;
    cout << "z = " << point.z.get() << endl;

}