43. Find POINT if inside or outside C++

#include <iostream>
#include <vector>

int main()
{
    using namespace std;

    vector<pair<int, int>> rect;
    int x, y;
    for (int i = 0; i < 2; i++)
    {
        cin >> x >> y;
        rect.push_back(make_pair(x, y));
    }

    cin >> x >> y;
    if (rect[0].first <= x && x <= rect[1].first &&
        rect[0].second <= y && y <= rect[1].second)
        cout << "Check point is inside\n";
    else
        cout << "Check point is outside\n";

    return 0;
}