제출 #1247836

#제출 시각아이디문제언어결과실행 시간메모리
1247836hayyyPizza (COCI21_pizza)C++20
50 / 50
0 ms328 KiB
#include <bits/stdc++.h> using namespace std; int main() { int N, M, K, X, cnt = 0, inp; cin >> N; vector<int> A(N); // Input array A of size N for (int i = 0; i < N; i++) { cin >> A[i]; } cin >> M; // Use a set for fast lookup unordered_set<int> A_set(A.begin(), A.end()); for (int i = 0; i < M; i++) { cin >> K; bool valid = true; vector<int> B(K); for (int j = 0; j < K; j++) { cin >> B[j]; if (A_set.count(B[j])) { valid = false; } } if (valid) cnt++; } cout << cnt << endl; return 0; }
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