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Submission #864565

# Submission time Handle Problem Language Result Execution time Memory
864565 2023-10-23T08:47:21 Z vnm06 Duathlon (APIO18_duathlon) C++14
0 / 100
 25 ms 10588 KB 
#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

long long n, m, brv=0, bv=0;
bool used[300005];
vector<int> gr[300005];

bool dfs(int v)
{
    used[v]=1;
    brv++;
    int brs=gr[v].size();
    for(int i=0; i<brs; i++)
    {
        if(brv>2 && gr[v][i]==bv) return 1;
        if(used[gr[v][i]]) continue;
        return dfs(gr[v][i]);
    }
    return 0;
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>m;
    for(int i=0; i<m; i++)
    {
        int v, u;
        cin>>v>>u;
        gr[v].push_back(u);
        gr[u].push_back(v);
    }
    long long ans=0;
    for(int i=1; i<=n; i++)
    {
        if(used[i]) continue;
        brv=0;
        bv=i;
        if(dfs(i)) ans+=brv*(brv-1)*(brv-2);
        else ans+=brv*(brv-1)*(brv-2)/3;
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7260 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7260 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 10588 KB Output is correct
2 Correct 24 ms 10588 KB Output is correct
3 Incorrect 24 ms 10504 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7516 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 10588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7516 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 25 ms 10588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7260 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 7260 KB Output isn't correct
2 Halted 0 ms 0 KB -