Submission #438721

#	Time	Username	Problem	Language	Result	Execution time	Memory
438721		SorahISA	Pizza (COCI21_pizza)	C++17	50 / 50	1 ms	316 KiB

Main

// #pragma GCC optimize("Ofast", "unroll-loops")

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

#define int long long
#define double long double
using pii = pair<int, int>;
template<typename T>
using prior = priority_queue<T, vector<T>, greater<T>>;
template<typename T>
using Prior = priority_queue<T>;

#define X first
#define Y second
#define ALL(x) (x).begin(), (x).end()
#define eb emplace_back
#define pb push_back
#define fastIO() ios_base::sync_with_stdio(false), cin.tie(0)

void solve() {
    int n, m, k, tmp, fl, cnt = 0;
    cin >> n;
    
    set<int> st;
    while (n--) cin >> tmp, st.insert(tmp);
    
    cin >> m;
    
    while (m--) {
        cin >> k, fl = 0;
        while (k--) cin >> tmp, fl |= st.count(tmp);
        cnt += !fl;
    }
    cout << cnt << "\n";
}

int32_t main() {
    fastIO();
    
    int t = 1; // cin >> t;
    while (t--) solve();
    
    return 0;
}

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