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Submission #340724

# Submission time Handle Problem Language Result Execution time Memory
340724 2020-12-28T09:45:53 Z bigDuck Bosses (BOI16_bosses) C++14
100 / 100
 831 ms 876 KB 
#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount


int t, n, m, k, a[300010], q, l, r;

vector<int> g[5010];
bool v[5010];




int bfs(int s){
int sum=1;
queue<pii> q;
q.push({s, 1});
v[s]=true;

while(!q.empty()){
    pii pr=q.front(); q.pop();
    int node=pr.ft, d=pr.sc;
    for(int u:g[node]){
        if(!v[u]){
            q.push({u, d+1});
            sum+=d+1;
            v[u]=true;
        }
    }
}
for(int i=1; i<=n; i++){
    if(v[i]==false){
        sum=1e9;
    }
    v[i]=false;
}
return sum;
}




int32_t main(){
INIT
cin>>n;
for(int i=1; i<=n; i++){
    cin>>k;
    for(int j=1; j<=k; j++){
        int v; cin>>v;
        g[v].pb(i);
    }
}


int res=1e9;
for(int i=1; i<=n; i++){
    res=min(res, bfs(i));
}
cout<<res;



return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 5 ms 748 KB Output is correct
13 Correct 4 ms 620 KB Output is correct
14 Correct 187 ms 748 KB Output is correct
15 Correct 18 ms 620 KB Output is correct
16 Correct 642 ms 876 KB Output is correct
17 Correct 784 ms 768 KB Output is correct
18 Correct 831 ms 876 KB Output is correct