Submission #1306247

#	Time	Username	Problem	Language	Result	Execution time	Memory
1306247		zertinii	Political Development (BOI17_politicaldevelopment)	C++20	4 / 100	26 ms	66720 KiB

politicaldevelopment

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

#define ios ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr)
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin() + 1, (x).rend()
#define fi first
#define se second
#define yes cout << "YES" << '\n'
#define no cout << "NO" << '\n'
#define int long long
#define veci vector<int>
#define skip continue
#define sz size()
#define pii pair<int,int>

const int mod = 1e9 + 7;
const int N = 5052;
const int inf = 1e18;

int c[N][N];
void zertinii() {
    int n, m;
    cin >> n >> m;
    bool ok = false;
    veci a(n + 1);
    for(int i = 1;i <= n;i++) {
        cin >> a[i];
        veci b(a[i] + 1);
        if(a[i] > 0) {
            ok = true;
        }
        for(int j = 1;j <= a[i];j++) {
            cin >> b[j];
            c[i][b[j]] = 1;
            c[b[j]][i] = 1;
        }
    }
    if(m == 1) {
        cout << 1;
        return;
    }
    if(m == 2) {
        if(ok) {
            cout << 2;
            return;
        }
        else {
            cout << 1;
            return;
        }
    }
    for(int i = 1;i <= n;i++) {
        for(int j = i + 1;j <= n;j++) {
            if(!c[i][j]) {
                continue;
            }
            else {
                break;
            }
            for(int k = j + 1;k <= n;k++) {
                if(c[i][k] and c[j][k]) {
                    cout << 3;
                    return;
                }
            }
        }
    }
}
signed main() {
    ios;
    int t = 1;
    //cin >> t;
    while(t--) {
        zertinii();
    }
    return 0;
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 12
• Subtask 3: 0 / 23
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23