Submission #1257873

#	Time	Username	Problem	Language	Result	Execution time	Memory
1257873		arnaa	Pizza (COCI21_pizza)	C++20	50 / 50	0 ms	328 KiB

Main

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

int main() {
    int n;
    cin >> n;
    vector<int> dislike(n);
    for (int i = 0; i < n; i++) {
        cin >> dislike[i];
    }

    // Store disliked toppings in a set for fast lookup
    unordered_set<int> bad(dislike.begin(), dislike.end());

    int m;
    cin >> m;

    int countGood = 0;
    for (int i = 0; i < m; i++) {
        int k;
        cin >> k;
        bool hasBad = false;
        for (int j = 0; j < k; j++) {
            int topping;
            cin >> topping;
            if (bad.count(topping)) {
                hasBad = true;
            }
        }
        if (!hasBad) {
            countGood++;
        }
    }

    cout << countGood << "\n";
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10