oj.uz

Submission #985405

# Submission time Handle Problem Language Result Execution time Memory
985405 2024-05-17T18:33:34 Z Octa_pe_info Bosses (BOI16_bosses) C++14
100 / 100
 436 ms 860 KB 
#include<bits/stdc++.h>
using namespace std;
int n, cost, ans = (1<<30);
vector<int>v[5002];
int viz[5002];
int s;
void bfs(int nod)
{
    memset(viz, 0, sizeof(viz));
    viz[nod] = 1;
    queue<int>q;
    q.push(nod);
    cost = 1;
    while(!q.empty())
    {
        int t = q.front();
        q.pop();
        for(int j = 0; j < v[t].size(); ++j)
        {
            int vecin = v[t][j];
            if(!viz[vecin])
            {
                s++;
                viz[vecin] = viz[t] + 1;
                cost += viz[vecin];
                q.push(vecin);
            }
        }
    }
}
int main()
{
    cin >> n;
    for(int i = 1; i <= n; ++i)
    {
        int k;
        cin >> k;
        for(int j = 1; j <= k; ++j)
        {
            int nr;
            cin >> nr;
            v[nr].push_back(i);
        }
    }
    for(int i = 1; i <= n; ++i)
    {
        s = 0;
        cost = 0;
        bfs(i);
        if(s == n-1)
            ans = min(ans, cost);
    }
    cout << ans;
    return 0;
}

Compilation message

bosses.cpp: In function 'void bfs(int)':
bosses.cpp:18:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |         for(int j = 0; j < v[t].size(); ++j)
      |                        ~~^~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 552 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 552 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 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 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 552 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 4 ms 604 KB Output is correct
14 Correct 72 ms 660 KB Output is correct
15 Correct 5 ms 604 KB Output is correct
16 Correct 436 ms 760 KB Output is correct
17 Correct 370 ms 860 KB Output is correct
18 Correct 382 ms 764 KB Output is correct