Submission #4280142


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#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a = b; return 1; } return 0; }
//---------------------------------------------------------------------------------------------------
/*---------------------------------------------------------------------------------------------------
            ∧_∧  
      ∧_∧  (´<_` )  Welcome to My Coding Space!
     ( ´_ゝ`) /  ⌒i     
    /   \     | |     
    /   / ̄ ̄ ̄ ̄/  |  
  __(__ニつ/     _/ .| .|____  
     \/____/ (u ⊃  
---------------------------------------------------------------------------------------------------*/






int N, M;
int A[31][31];
//---------------------------------------------------------------------------------------------------
void _main() {
    cin >> N >> M;
    rep(i, 0, N) {
        int k; cin >> k;
        rep(j, 0, k) {
            int a; cin >> a;
            a--;

            A[i][a] = 1;
        }
    }

    int ans = 0;
    rep(i, 0, M) {
        int cnt = 0;
        rep(j, 0, N) if (0 < A[j][i]) cnt++;
        if (cnt == N) ans++;
    }
    cout << ans << endl;
}

Submission Info

Submission Time
Task B - Foods Loved by Everyone
User hamayanhamayan
Language C++14 (GCC 5.4.1)
Score 200
Code Size 1758 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