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Submission #1044274

# Submission time Handle Problem Language Result Execution time Memory
1044274 2024-08-05T08:31:53 Z vjudge1 Bosses (BOI16_bosses) C++14
100 / 100
 341 ms 728 KB 
#include <bits/stdc++.h>
#define ll long long

using namespace std;

bool ok = 0;


const int maxn = 5000 + 7;

int n , h[maxn] , ans = 1e18;
vector <int> g[maxn];

void bfs(int s)
{
    for(int i = 1; i <= n; i++) h[i] = -1;
    queue <int> node;
    node.push(s);

    h[s] = 1;

    while(!node.empty())
    {
        int u = node.front();
        for(int v: g[u])
        {
            if(h[v] == -1)
            {
                h[v] = h[u] + 1;
                node.push(v);
            }
        }
        node.pop();
    }

    int cnt = 0;
    bool check = 1;

    for(int i = 1; i <= n; i++)
    {
        if(h[i] == -1) check = 0;
        cnt += h[i];
    }

    if(check) ans = min(ans , cnt);
}

void solve()
{
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        int s , k; cin >> s;
        while(s--)
        {
            cin >> k;
            g[k].push_back(i);
        }
    }

    for(int i = 1; i <= n; i++)
    {
        bfs(i);
    }

    cout << ans << '\n';
}


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    solve();
    return 0;

}

Compilation message

bosses.cpp:11:25: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   11 | int n , h[maxn] , ans = 1e18;
      |                         ^~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 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 1 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 1 ms 344 KB Output is correct
2 Correct 0 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 1 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 1 ms 348 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 0 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 1 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 1 ms 348 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 63 ms 604 KB Output is correct
15 Correct 16 ms 600 KB Output is correct
16 Correct 339 ms 604 KB Output is correct
17 Correct 341 ms 600 KB Output is correct
18 Correct 304 ms 728 KB Output is correct