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Submission #1066415

# Submission time Handle Problem Language Result Execution time Memory
1066415 2024-08-19T20:58:05 Z boris_7 Bosses (BOI16_bosses) C++17
100 / 100
 533 ms 860 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

vector<vector<ll>>gp;
vector<ll>vis;
vector<ll> d;
ll n;
ll ans = LLONG_MAX;

void bfs(ll u){
    queue<ll>q;
    q.push(u);
    vis[u]=1;
    d[u]=1;
    ll cnt = 0,comp=0;
    while(q.size()){
        ll v = q.front();
        q.pop();
        comp++;
        cnt+=d[v];
        for(ll &i:gp[v]){
            if(!vis[i]){
                vis[i]=1;
                d[i]=d[v]+1;
                q.push(i);
            }
        }
    }
    if(comp==n){
        ans = min(ans,cnt);
    }
}

void solve(){
    cin>>n;
    gp = vector<vector<ll>>(n);
    for(ll i =0;i<n;i++){
        ll x;
        cin>>x;
        while(x--){
            ll v;
            cin>>v;
            gp[--v].push_back(i);
        }
    }
    for(ll i = 0;i<n;i++){
        vis = vector<ll>(n);
        d = vector<ll>(n);
        bfs(i);
    }
    cout<<ans<<endl;
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr);
    // ll t;cin>>t;while(t--)
        solve();
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 456 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 456 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 4 ms 604 KB Output is correct
14 Correct 98 ms 604 KB Output is correct
15 Correct 7 ms 860 KB Output is correct
16 Correct 465 ms 860 KB Output is correct
17 Correct 524 ms 860 KB Output is correct
18 Correct 533 ms 860 KB Output is correct