Zzid

#include <bits/stdc++.h>
using namespace std;
#define smin(X, Y) ((X) < (Y) ? (X) : (Y))
int w, h, mx, dif;
unordered_map <int, int> m;

int main()
{
    ifstream cin ("zzid.in");
    ofstream cout ("zzid.out");
    cin >> h >> w;
    for (int i=1, nr, x = 0; i<=h; i++, x = 0)
    {
        cin >> nr;
        for (int j=1, l; j<=nr; j++)
        {
            cin >> l;
            if (j == nr) continue;
            x += l; m[x]++;
            if (m[x] > mx) mx = m[x], dif = abs(x - (w - x));
            else if (m[x] == mx) dif = smin(dif, abs(x - (w - x)));
        }
    }
    cout << (h - mx) << ' ' << dif;
    return 0;
}