11 atestat

#include <iostream>
#include <fstream>
#include <math.h>

using namespace std;

struct coordonate {
    float x, y;
} a[1001];

float distanta(int b, int c) {
    return sqrt(pow((a[b].x - a[c].x), 2) + pow((a[b].y - a[c].y), 2));
}

int main() {
    int n = 1, q = 0, d = 0;
    ifstream f("puncte.in");
    ofstream g("puncte.out");
    while (f >> a[n].x >> a[n].y) {
        if (a[n].x > 0 && a[n].y > 0)
            q++;
        n++;
    }
    n--;
    g << q << ' ';
    for (int i = 1; i <= n - 1; i++)
        for (int j = i + 1; j <= n; j++) {
            q = distanta(i, j);
            if (q > d)
                d = q;
        }
    g << d;
    f.close(); g.close();
    system("pause");
}