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 value;
};

int main() {
    size_t n;

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

    struct points _points[n];

    double query;

    for (int i = 0; i < n; ++i) {
        cout << "Enter value" << endl;
        _points[i].value.init();
    }

    cout << "Entered array:" << endl;

    for (int i = 0; i < n; ++i) {
        cout << i << " - " << _points[i].value.get() << endl;
    }

    cout << "Enter what do you want search:" << endl;

    cin >> query;

    for (int i = 0; i < n; ++i) {
        if ((int) query == query) {
            if ((int)_points[i].value.get() == query) {
                cout << "Point with value = " << query << " found." << endl;
                cout << i << " - " << "value: " << _points[i].value.get() << endl << endl;
            }
        } else {
            if (_points[i].value.get() == query) {
                cout << "Point with value = " << query << " found." << endl;
                cout << i << " - " << "value: " << _points[i].value.get() << endl << endl;
            }
        }
    }
}