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Submission #821365

# Submission time Handle Problem Language Result Execution time Memory
821365 2023-08-11T09:34:22 Z Denkata Marshmallow Molecules (CCO19_day2problem2) C++14
10 / 25
 806 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].empty())continue;
        ans+=(long long)s[i].size();
        p = *s[i].begin();s[i].erase(s[i].begin());
        if(s[i].empty())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 9684 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9876 KB Output is correct
5 Correct 5 ms 9824 KB Output is correct
6 Correct 5 ms 9940 KB Output is correct
7 Correct 5 ms 9888 KB Output is correct
8 Correct 5 ms 9940 KB Output is correct
9 Correct 4 ms 9812 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 4 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 9684 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9876 KB Output is correct
5 Correct 5 ms 9824 KB Output is correct
6 Correct 5 ms 9940 KB Output is correct
7 Correct 5 ms 9888 KB Output is correct
8 Correct 5 ms 9940 KB Output is correct
9 Correct 4 ms 9812 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 4 ms 9812 KB Output is correct
16 Correct 556 ms 540624 KB Output is correct
17 Correct 579 ms 562056 KB Output is correct
18 Correct 600 ms 596320 KB Output is correct
19 Correct 597 ms 596392 KB Output is correct
20 Correct 607 ms 596308 KB Output is correct
21 Correct 447 ms 493536 KB Output is correct
22 Correct 546 ms 541448 KB Output is correct
23 Correct 564 ms 562828 KB Output is correct
24 Correct 649 ms 596412 KB Output is correct
25 Correct 607 ms 596412 KB Output is correct
26 Correct 592 ms 596408 KB Output is correct
27 Correct 426 ms 451024 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 806 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 9684 KB Output is correct
3 Correct 6 ms 9940 KB Output is correct
4 Correct 5 ms 9876 KB Output is correct
5 Correct 5 ms 9824 KB Output is correct
6 Correct 5 ms 9940 KB Output is correct
7 Correct 5 ms 9888 KB Output is correct
8 Correct 5 ms 9940 KB Output is correct
9 Correct 4 ms 9812 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 4 ms 9812 KB Output is correct
16 Correct 556 ms 540624 KB Output is correct
17 Correct 579 ms 562056 KB Output is correct
18 Correct 600 ms 596320 KB Output is correct
19 Correct 597 ms 596392 KB Output is correct
20 Correct 607 ms 596308 KB Output is correct
21 Correct 447 ms 493536 KB Output is correct
22 Correct 546 ms 541448 KB Output is correct
23 Correct 564 ms 562828 KB Output is correct
24 Correct 649 ms 596412 KB Output is correct
25 Correct 607 ms 596412 KB Output is correct
26 Correct 592 ms 596408 KB Output is correct
27 Correct 426 ms 451024 KB Output is correct
28 Runtime error 806 ms 1048576 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -