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Submission #533844

# Submission time Handle Problem Language Result Execution time Memory
533844 2022-03-07T12:07:18 Z groshi Bosses (BOI16_bosses) C++17
100 / 100
 776 ms 716 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<utility>
using namespace std;
struct wi{
    vector<int> Q;
    int odw=0;
}*w;
long long wynik=1e18;
int kiedy=0;
int ile=0;
long long mam=0;
void bfs(int x)
{
    queue<pair<int,long long> > kolejka;
    w[x].odw=x;
    kolejka.push({x,1});
    while(!kolejka.empty())
    {
        pair<int,long long> para=kolejka.front();
        kolejka.pop();
        ile++;
        mam+=para.second;
        for(int i=0;i<w[para.first].Q.size();i++)
        {
            int pom=w[para.first].Q[i];
            if(w[pom].odw==x)
                continue;
            w[pom].odw=x;
            kolejka.push({pom,para.second+1});
        }
    }
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n,s,x;
    cin>>n;
    w=new wi[n+3];
    for(int i=1;i<=n;i++)
    {
        cin>>s;
        for(int j=0;j<s;j++)
        {
            cin>>x;
            w[x].Q.push_back(i);
        }
    }
    for(int i=1;i<=n;i++)
    {
        kiedy=i;
        ile=0;
        mam=0;
        bfs(i);
        if(ile!=n)
            continue;
        wynik=min(wynik,mam);
    }
    cout<<wynik;
    return 0;
}

Compilation message

bosses.cpp: In function 'void bfs(int)':
bosses.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for(int i=0;i<w[para.first].Q.size();i++)
      |                     ~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 312 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 312 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 5 ms 324 KB Output is correct
13 Correct 4 ms 444 KB Output is correct
14 Correct 175 ms 588 KB Output is correct
15 Correct 3 ms 588 KB Output is correct
16 Correct 648 ms 588 KB Output is correct
17 Correct 735 ms 716 KB Output is correct
18 Correct 776 ms 708 KB Output is correct