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Submission #821387

# Submission time Handle Problem Language Result Execution time Memory
821387 2023-08-11T09:46:02 Z Denkata Marshmallow Molecules (CCO19_day2problem2) C++17
10 / 25
 804 ms 1048576 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)
{
    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);
        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 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 5 ms 5204 KB Output is correct
4 Correct 4 ms 5204 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 2 ms 5204 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 3 ms 5204 KB Output is correct
14 Correct 3 ms 5204 KB Output is correct
15 Correct 2 ms 5204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 5 ms 5204 KB Output is correct
4 Correct 4 ms 5204 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 2 ms 5204 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 3 ms 5204 KB Output is correct
14 Correct 3 ms 5204 KB Output is correct
15 Correct 2 ms 5204 KB Output is correct
16 Correct 607 ms 535864 KB Output is correct
17 Correct 595 ms 557356 KB Output is correct
18 Correct 639 ms 591668 KB Output is correct
19 Correct 633 ms 591632 KB Output is correct
20 Correct 645 ms 591668 KB Output is correct
21 Correct 492 ms 488772 KB Output is correct
22 Correct 599 ms 536720 KB Output is correct
23 Correct 616 ms 558248 KB Output is correct
24 Correct 664 ms 591628 KB Output is correct
25 Correct 647 ms 591620 KB Output is correct
26 Correct 627 ms 591652 KB Output is correct
27 Correct 431 ms 446284 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 804 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 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 5 ms 5204 KB Output is correct
4 Correct 4 ms 5204 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 2 ms 5204 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 3 ms 5204 KB Output is correct
14 Correct 3 ms 5204 KB Output is correct
15 Correct 2 ms 5204 KB Output is correct
16 Correct 607 ms 535864 KB Output is correct
17 Correct 595 ms 557356 KB Output is correct
18 Correct 639 ms 591668 KB Output is correct
19 Correct 633 ms 591632 KB Output is correct
20 Correct 645 ms 591668 KB Output is correct
21 Correct 492 ms 488772 KB Output is correct
22 Correct 599 ms 536720 KB Output is correct
23 Correct 616 ms 558248 KB Output is correct
24 Correct 664 ms 591628 KB Output is correct
25 Correct 647 ms 591620 KB Output is correct
26 Correct 627 ms 591652 KB Output is correct
27 Correct 431 ms 446284 KB Output is correct
28 Runtime error 804 ms 1048576 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -