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Submission #977489

# Submission time Handle Problem Language Result Execution time Memory
977489 2024-05-08T04:56:22 Z JungPS Bosses (BOI16_bosses) C++14
100 / 100
 412 ms 1028 KB 
#include <iostream>
#include<cstring>
#include<vector>
#include<queue>
using namespace std;

int vis[5007];
long long cost = 0;

vector<int> vec[5007];

int n,cnt=0;

void bfs(int src)
{
    queue< pair<int , int> >q ;
    q.push({src , 1}) ;
    vis[src] = 1 ;
    while(!q.empty())
    {
        pair<int , int>p = q.front() ;
        q.pop() ;
        cnt++ ;
        int node = p.first ;
        cost += (p.second * 1ll) ;
        for(auto &child : vec[node])
        {
            if(vis[child] == 1)
                continue ;
            vis[child] = 1 ;
            q.push({child , p.second+1}) ;
        }
    }
    return ;
}

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    cin >> n;
    for(int i = 1 ; i <= n ; ++i)
    {
        int m;
        cin >> m;
        while(m--)
        {
            int x;
            cin >> x;
            vec[x].push_back(i) ;
        }
    }
    long long ans = 1e18 ;
    for(int i = 1 ; i <= n ; ++i)
    {
        memset(vis , 0 , sizeof(vis)) ;
        cnt = 0 , cost = 0;
        bfs(i) ;
        if(cnt != n)
            continue;
        ans = min(ans , cost) ;
    }
    return printf("%lld" , ans) , 0 ;
}

Subtask #1
22.0 / 22.0

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

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 576 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 576 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 98 ms 688 KB Output is correct
15 Correct 3 ms 604 KB Output is correct
16 Correct 412 ms 1028 KB Output is correct
17 Correct 387 ms 604 KB Output is correct
18 Correct 398 ms 848 KB Output is correct