Submission #1235283

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235283		kaltspielerhy	Spring cleaning (CEOI20_cleaning)	C++20	0 / 100	20 ms	584 KiB

cleaning

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int N, Q;
    cin >> N >> Q;
    for (int i = 0; i < N; i++) {
        int u, v;
        cin>>u>>v;
    }

    for (int i = 0; i < Q; i++) {
        int nbFeuilles;
        cin >> nbFeuilles;
        vector<int> feuilles(nbFeuilles);
        for (int&  i : feuilles) cin >> i;
        if ((N-1) % 2 == 1) {
            cout << -1 << '\n';
            continue;
        }

        cout << (N-1+nbFeuilles) << '\n';
    }
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 17
• Subtask 7: 0 / 30