ТҮЗӨТҮҮ

#include <bits/stdc++.h>

using namespace std;

int main(){
    ios::sync_with_stdio(0);

    int x[3], y[3];
    cin >> x[0] >> y[0];
    cin >> x[1] >> y[1];
    cin >> x[2] >> y[2];

    sort(x, x + 3);
    sort(y, y + 3);

    int ans = 1e9;

    for (int i = 1; i <= 2021; i++) {
        int ret = 0;
        ret += abs(i - x[0]);
        ret += abs(i - x[1]);
        ret += abs(i - x[2]);

        if (y[0] == y[2]) {
            ret += 2;
        } else if (y[0] == y[1] || y[1] == y[2]) {
            ret++;
        }

        ans = min(ans, ret);
    }
    for (int i = 1; i <= 2021; i++) {
        int ret = 0;
        ret += abs(i - y[0]);
        ret += abs(i - y[1]);
        ret += abs(i - y[2]);

        if (x[0] == x[2]) {
            ret += 2;
        } else if (x[0] == x[1] || x[1] == x[2]) {
            ret++;
        }

        ans = min(ans, ret);
    }

    cout << ans << endl;
}