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;
};

int main() {

    size_t n;

    coordinate query_x;
    coordinate query_y;


    printf("Enter the size of size of array:");
    cin >> n;

    struct coordinate_system points[n];

    for (int i = 0; i < n; ++i) {
        cout << "Enter value of x for point[" << i << "]" << ": ";
        points[i].x.init();

        cout << "Enter value of y for point[" << i << "]" << ": ";
        points[i].y.init();
    }

    cout << "Entered data:" << endl;

    for (int i = 0; i < n; ++i) {
        cout << endl << "x = " << points[i].x.get() << "; y = " << points[i].y.get() << endl;
    }

    cout << "Enter x for search:" << endl;

    query_x.init();

    cout << "Enter y for search:" << endl;

    query_y.init();

    for (int i = 0; i < n; ++i) {
        if (points[i].x.get() == query_x.get() && points[i].y.get() == query_y.get()) {
            cout << "Point with x = " << query_x.get() << " and y = " << query_y.get() << " found." << endl;
            cout << i << " - " << "x: " << points[i].x.get() << " y: " << points[i].x.get() << endl << endl;
        }
    }

}