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Submission #821367

# Submission time Handle Problem Language Result Execution time Memory
821367 2023-08-11T09:35:01 Z Denkata Marshmallow Molecules (CCO19_day2problem2) C++14
10 / 25
 795 ms 1048576 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn = 2e5+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(a.size()<b.size())
        swap(a,b);
    if(b.empty())
        return a;
    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;
        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(s[i].begin());
        if(s[i].size()==0)continue;
        s[p] = Merge(s[i],s[p]);
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9712 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9852 KB Output is correct
5 Correct 6 ms 9872 KB Output is correct
6 Correct 5 ms 9856 KB Output is correct
7 Correct 5 ms 9852 KB Output is correct
8 Correct 6 ms 9940 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 6 ms 9872 KB Output is correct
11 Correct 6 ms 9852 KB Output is correct
12 Correct 6 ms 9848 KB Output is correct
13 Correct 5 ms 9852 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 5 ms 9812 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9712 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9852 KB Output is correct
5 Correct 6 ms 9872 KB Output is correct
6 Correct 5 ms 9856 KB Output is correct
7 Correct 5 ms 9852 KB Output is correct
8 Correct 6 ms 9940 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 6 ms 9872 KB Output is correct
11 Correct 6 ms 9852 KB Output is correct
12 Correct 6 ms 9848 KB Output is correct
13 Correct 5 ms 9852 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 5 ms 9812 KB Output is correct
16 Correct 566 ms 540924 KB Output is correct
17 Correct 581 ms 562396 KB Output is correct
18 Correct 603 ms 596760 KB Output is correct
19 Correct 616 ms 596744 KB Output is correct
20 Correct 604 ms 596796 KB Output is correct
21 Correct 512 ms 493440 KB Output is correct
22 Correct 563 ms 541904 KB Output is correct
23 Correct 590 ms 563280 KB Output is correct
24 Correct 610 ms 596804 KB Output is correct
25 Correct 601 ms 596684 KB Output is correct
26 Correct 651 ms 596708 KB Output is correct
27 Correct 416 ms 451148 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 795 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9712 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9852 KB Output is correct
5 Correct 6 ms 9872 KB Output is correct
6 Correct 5 ms 9856 KB Output is correct
7 Correct 5 ms 9852 KB Output is correct
8 Correct 6 ms 9940 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 6 ms 9872 KB Output is correct
11 Correct 6 ms 9852 KB Output is correct
12 Correct 6 ms 9848 KB Output is correct
13 Correct 5 ms 9852 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 5 ms 9812 KB Output is correct
16 Correct 566 ms 540924 KB Output is correct
17 Correct 581 ms 562396 KB Output is correct
18 Correct 603 ms 596760 KB Output is correct
19 Correct 616 ms 596744 KB Output is correct
20 Correct 604 ms 596796 KB Output is correct
21 Correct 512 ms 493440 KB Output is correct
22 Correct 563 ms 541904 KB Output is correct
23 Correct 590 ms 563280 KB Output is correct
24 Correct 610 ms 596804 KB Output is correct
25 Correct 601 ms 596684 KB Output is correct
26 Correct 651 ms 596708 KB Output is correct
27 Correct 416 ms 451148 KB Output is correct
28 Runtime error 795 ms 1048576 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -