Submission #10716267


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#include <bits/stdc++.h>
using namespace std;
using lint = long long;
const lint mod = 998244353;
#define all(x) (x).begin(), (x).end()
#define bitcount(n) __builtin_popcountl((lint)(n))
#define fcout cout << fixed << setprecision(15)
#define highest(x) (63 - __builtin_clzl(x))
template<class T> inline void YES(T condition){ if(condition) cout << "YES" << endl; else cout << "NO" << endl; }
template<class T> inline void Yes(T condition){ if(condition) cout << "Yes" << endl; else cout << "No" << endl; }
template<class T = string, class U = char>int character_count(T text, U character){ int ans = 0; for(U i: text){ ans += (i == character); } return ans; }
lint power(lint base, lint exponent, lint module){ if(exponent % 2){ return power(base, exponent - 1, module) * base % module; }else if(exponent){ lint root_ans = power(base, exponent / 2, module); return root_ans * root_ans % module; }else{ return 1; }}
struct position{ int y, x; }; position mv[4] = {{0, -1}, {1, 0}, {0, 1}, {-1, 0}}; // double euclidean(position first, position second){ return sqrt((second.x - first.x) * (second.x - first.x) + (second.y - first.y) * (second.y - first.y)); }
template<class T, class U> string to_string(pair<T, U> x){ return to_string(x.first) + "," + to_string(x.second); } string to_string(string x){ return x; }
template<class itr> void array_output(itr start, itr goal){ string ans; for(auto i = start; i != goal; i++) ans += to_string(*i) + " "; if(!ans.empty()) ans.pop_back(); cout << ans << endl; }
template<class itr> void cins(itr first, itr last){ for(auto i = first; i != last; i++){ cin >> (*i); } }
template<class T> T gcd_calc(T a, T b){ if(b){ return gcd_calc(b, a % b); }else{ return a; }}
template<class T> T gcd(T a, T b){ if(a < b) swap(a, b); return gcd_calc(a, b); }
template<class T> T lcm(T a, T b){ return a / gcd(a, b) * b; }
struct combination{ vector<lint> fact, inv; combination(int sz) : fact(sz + 1), inv(sz + 1){ fact[0] = 1; for(int i = 1; i <= sz; i++){ fact[i] = fact[i - 1] * i % mod; } inv[sz] = power(fact[sz], mod - 2, mod); for(int i = sz - 1; i >= 0; i--){ inv[i] = inv[i + 1] * (i + 1) % mod; } } lint C(int p, int q) const{ if(q < 0 || p < q) return 0; return (fact[p] * inv[q] % mod * inv[p - q] % mod); } };
template<class itr> bool next_sequence(itr first, itr last, int max_bound){ itr now = last; while(now != first){ now--; (*now)++; if((*now) == max_bound){ (*now) = 0; }else{ return true; } } return false; }
inline int at(int x, int k){ return (x >> k) & 1; }
random_device rnd;

int main(){
    int N, M;
    cin >> N >> M;
    int ans = (1 << M) - 1;
    for(int i = 0; i < N; i++){
        int K;
        cin >> K;
        int like = 0;
        for(int j = 0; j < K; j++){
            int A;
            cin >> A;
            A--;
            like += (1 << A);
        }
        ans &= like;
    }
    cout << bitcount(ans) << endl;
}

Submission Info

Submission Time
Task B - Foods Loved by Everyone
User June_boy
Language C++14 (GCC 5.4.1)
Score 200
Code Size 2932 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