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Submission #821384

# Submission time Handle Problem Language Result Execution time Memory
821384 2023-08-11T09:43:28 Z Denkata Marshmallow Molecules (CCO19_day2problem2) C++14
10 / 25
 717 ms 1048576 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn = 2e6+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);
        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 40 ms 94412 KB Output is correct
2 Correct 37 ms 94176 KB Output is correct
3 Correct 39 ms 94388 KB Output is correct
4 Correct 39 ms 94376 KB Output is correct
5 Correct 39 ms 94332 KB Output is correct
6 Correct 39 ms 94420 KB Output is correct
7 Correct 40 ms 94412 KB Output is correct
8 Correct 39 ms 94444 KB Output is correct
9 Correct 38 ms 94420 KB Output is correct
10 Correct 44 ms 94356 KB Output is correct
11 Correct 44 ms 94420 KB Output is correct
12 Correct 39 ms 94420 KB Output is correct
13 Correct 38 ms 94404 KB Output is correct
14 Correct 44 ms 94432 KB Output is correct
15 Correct 47 ms 94380 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 94412 KB Output is correct
2 Correct 37 ms 94176 KB Output is correct
3 Correct 39 ms 94388 KB Output is correct
4 Correct 39 ms 94376 KB Output is correct
5 Correct 39 ms 94332 KB Output is correct
6 Correct 39 ms 94420 KB Output is correct
7 Correct 40 ms 94412 KB Output is correct
8 Correct 39 ms 94444 KB Output is correct
9 Correct 38 ms 94420 KB Output is correct
10 Correct 44 ms 94356 KB Output is correct
11 Correct 44 ms 94420 KB Output is correct
12 Correct 39 ms 94420 KB Output is correct
13 Correct 38 ms 94404 KB Output is correct
14 Correct 44 ms 94432 KB Output is correct
15 Correct 47 ms 94380 KB Output is correct
16 Correct 593 ms 625084 KB Output is correct
17 Correct 606 ms 646532 KB Output is correct
18 Correct 640 ms 680920 KB Output is correct
19 Correct 629 ms 680952 KB Output is correct
20 Correct 624 ms 681188 KB Output is correct
21 Correct 543 ms 577924 KB Output is correct
22 Correct 581 ms 625908 KB Output is correct
23 Correct 621 ms 647444 KB Output is correct
24 Correct 647 ms 681072 KB Output is correct
25 Correct 618 ms 680852 KB Output is correct
26 Correct 646 ms 680924 KB Output is correct
27 Correct 483 ms 535568 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 717 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 40 ms 94412 KB Output is correct
2 Correct 37 ms 94176 KB Output is correct
3 Correct 39 ms 94388 KB Output is correct
4 Correct 39 ms 94376 KB Output is correct
5 Correct 39 ms 94332 KB Output is correct
6 Correct 39 ms 94420 KB Output is correct
7 Correct 40 ms 94412 KB Output is correct
8 Correct 39 ms 94444 KB Output is correct
9 Correct 38 ms 94420 KB Output is correct
10 Correct 44 ms 94356 KB Output is correct
11 Correct 44 ms 94420 KB Output is correct
12 Correct 39 ms 94420 KB Output is correct
13 Correct 38 ms 94404 KB Output is correct
14 Correct 44 ms 94432 KB Output is correct
15 Correct 47 ms 94380 KB Output is correct
16 Correct 593 ms 625084 KB Output is correct
17 Correct 606 ms 646532 KB Output is correct
18 Correct 640 ms 680920 KB Output is correct
19 Correct 629 ms 680952 KB Output is correct
20 Correct 624 ms 681188 KB Output is correct
21 Correct 543 ms 577924 KB Output is correct
22 Correct 581 ms 625908 KB Output is correct
23 Correct 621 ms 647444 KB Output is correct
24 Correct 647 ms 681072 KB Output is correct
25 Correct 618 ms 680852 KB Output is correct
26 Correct 646 ms 680924 KB Output is correct
27 Correct 483 ms 535568 KB Output is correct
28 Runtime error 717 ms 1048576 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -