Submission #4280388


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#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvl;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n, m;
  cin >> n >> m;
  vector<int> a(m);
  for (int i = 0; i < n; i++) {
    int k;
    cin >> k;
    int b;
    for (int j = 0; j < k; j++) {
      cin >> b;
      a[b - 1]++;
    }
  }
  int ans = 0;
  for (int i = 0; i < m; i++)
    if (a[i] == n)
      ans++;
  cout << ans << endl;
  return 0;
}

Submission Info

Submission Time
Task B - Foods Loved by Everyone
User ninja7
Language C++14 (GCC 5.4.1)
Score 200
Code Size 583 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name All Sample
Score / Max Score 200 / 200 0 / 0
Status
AC × 15
AC × 3
Set Name Test Cases
All 0_random_1, 0_random_2, 1_max_1, 1_max_2, 2_nmin_1, 3_mmin_1, 4_corner_1, 4_corner_2, 4_corner_3, 5_hand_1, 5_hand_2, 5_hand_3, sample_01, sample_02, sample_03
Sample sample_01, sample_02, sample_03
Case Name Status Exec Time Memory
0_random_1 AC 1 ms 256 KB
0_random_2 AC 1 ms 256 KB
1_max_1 AC 1 ms 256 KB
1_max_2 AC 1 ms 256 KB
2_nmin_1 AC 1 ms 256 KB
3_mmin_1 AC 1 ms 256 KB
4_corner_1 AC 1 ms 256 KB
4_corner_2 AC 1 ms 256 KB
4_corner_3 AC 1 ms 256 KB
5_hand_1 AC 1 ms 256 KB
5_hand_2 AC 1 ms 256 KB
5_hand_3 AC 1 ms 256 KB
sample_01 AC 1 ms 256 KB
sample_02 AC 1 ms 256 KB
sample_03 AC 1 ms 256 KB