v1

#include <iostream>
#include <cmath>

#define ABS(x) ((x) < 0 ? -(x) : (x))

typedef std::pair<double, double> Point;

double count(Point points[]) {
    double sum = 0;
    for (int i = 0; i < 3; i++) {
        Point oppositeCenter;
        oppositeCenter.first = (points[i].first + points[(i + 1) % 3].first) / 2;
        oppositeCenter.second = (points[i].second + points[(i + 1) % 3].second) / 2;

        Point currentPoint = points[(i + 2) % 3];

        sum += sqrt(pow(currentPoint.first - oppositeCenter.first, 2.) +
                    pow(currentPoint.second - oppositeCenter.second, 2.));
    }
}

int main() {
    Point points[3];
    for (int i = 0; i < 3; i++) {
        std::cout << "Input X" << i << ", Y" << i << ":" << std::endl;
        std::cin >> points[i].first >> points[i].second;
    }
    std::cout << "Sum of medians: " << count(points) << std::endl;
    return 0;
}