#include <iostream>
#include "R2Contour.h"

using namespace std;

int main() {
    cout << "Enter a number of vertices: ";
    int n;
    if (!(cin >> n) || n <= 0)
        return (-1);
    R2Contour contour;
    cout << "Enter vertices of a contour:" << endl;
    for (int i = 0; cin.good() && i < n; ++i) {
        R2Point p;
        cin >> p;
        contour.push_back(p);
    }
    cout << contour << endl;
    cout << "Perimeter of the contour: " << contour.perimeter() << endl;
    cout << "Centroid: " << contour.centroid() << endl;
    cout << "Signed area: " << contour.signedArea() << endl;
    return 0;
}