37370

#include <fstream>
#include <iostream>
using namespace std;
int main()
{
    int* a = new int[10000];
    int _max = 0, count = 0, sub;
    fstream f("17.txt");
    for (int i = 0; i < 10000; i++)
        f >> a[i];
    for (int i = 0; i < 9999; i++)
        for (int j = i + 1; j < 10000; j++)
        {
            sub = abs(a[i] - a[j]);
            if(sub % 60 == 0 && (a[i] % 15 == 0 || a[j] % 15 == 0))
            {
                _max = _max < sub ? sub : _max;
                count++;
            }
        }
    cout << count << "  " << _max;
}