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Submission #821437

# Submission time Handle Problem Language Result Execution time Memory
821437 2023-08-11T10:20:05 Z Denkata Marshmallow Molecules (CCO19_day2problem2) C++14
0 / 25
 4000 ms 10392 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e5+3;
int i,j,p,q,n,m,k;
long long ans;
set <int> s[maxn];
set <int> Merge(set <int> a,set <int> b)
{
    if(b.empty())
        return a;
    if(a.empty())
        return b;
    if((int)a.size()<(int)b.size())
        swap(a,b);
    a.insert(b.begin(),b.end());
    return a;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>m;
    for(i=1;i<=m;i++)
    {
        cin>>p>>q;
        if(p>q)
            swap(p,q);
        s[p].insert(q);
    }
    for(i=1;i<=n;i++)
    {
        if(s[i].size()==0)continue;
        ans+=(long long)s[i].size();

        p = *s[i].begin();s[i].erase(p);

        s[p].insert(Merge(s[i],s[p]).begin(),Merge(s[i],s[p]).end());
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4006 ms 5076 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4006 ms 5076 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4046 ms 10392 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4006 ms 5076 KB Time limit exceeded
2 Halted 0 ms 0 KB -