Submission #1112170

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112170		mariaclara	Bosses (BOI16_bosses)	C++17	100 / 100	404 ms	724 KiB

bosses

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
const int MAXN = 5e3 + 5;
#define all(x) x.begin(), x.end();
#define sz(x) (int)x.size()
#define mk make_pair 
#define pb push_back 
#define fr first 
#define sc second 

int n, dist[MAXN];
vector<int> edges[MAXN];

int bfs(int x) {
    fill(dist+1, dist+1+n, n+1);

    queue<int> fila;
    fila.push(x);
    dist[x] = 1;

    int ans = 0, cnt = n;
    while(!fila.empty()) {
        int x = fila.front();
        fila.pop();

        ans += dist[x];
        cnt--;

        for(auto viz : edges[x]) {
            if(dist[viz] > dist[x] + 1) {
                dist[viz] = dist[x] + 1;
                fila.push(viz);
            }
        }
    }

    if(cnt > 0) return n*n;
    return ans;
}
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> n;

    for(int i = 1, m, a; i <= n; i++) {
        cin >> m;
        while(m--) {
            cin >> a;
            edges[a].pb(i);
        }
    }

    int ans = n*n;
    for(int i = 1; i <= n; i++) {
        ans = min(ans, bfs(i));
    }

    cout << ans << "\n";
} 

• Subtask 1: 22 / 22
• Subtask 2: 45 / 45
• Subtask 3: 33 / 33