#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];
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[p].size()<s[i].size())
swap(s[i],s[p]);
for(auto j:s[i])
s[p].insert(j);
}
cout<<ans<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5016 KB |
Output is correct |
2 |
Correct |
2 ms |
5016 KB |
Output is correct |
3 |
Correct |
4 ms |
5220 KB |
Output is correct |
4 |
Correct |
3 ms |
5076 KB |
Output is correct |
5 |
Correct |
3 ms |
5076 KB |
Output is correct |
6 |
Correct |
3 ms |
5076 KB |
Output is correct |
7 |
Correct |
3 ms |
5076 KB |
Output is correct |
8 |
Correct |
3 ms |
5072 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5076 KB |
Output is correct |
11 |
Correct |
4 ms |
5076 KB |
Output is correct |
12 |
Correct |
3 ms |
5076 KB |
Output is correct |
13 |
Correct |
3 ms |
5076 KB |
Output is correct |
14 |
Correct |
4 ms |
5168 KB |
Output is correct |
15 |
Correct |
2 ms |
4980 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5016 KB |
Output is correct |
2 |
Correct |
2 ms |
5016 KB |
Output is correct |
3 |
Correct |
4 ms |
5220 KB |
Output is correct |
4 |
Correct |
3 ms |
5076 KB |
Output is correct |
5 |
Correct |
3 ms |
5076 KB |
Output is correct |
6 |
Correct |
3 ms |
5076 KB |
Output is correct |
7 |
Correct |
3 ms |
5076 KB |
Output is correct |
8 |
Correct |
3 ms |
5072 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5076 KB |
Output is correct |
11 |
Correct |
4 ms |
5076 KB |
Output is correct |
12 |
Correct |
3 ms |
5076 KB |
Output is correct |
13 |
Correct |
3 ms |
5076 KB |
Output is correct |
14 |
Correct |
4 ms |
5168 KB |
Output is correct |
15 |
Correct |
2 ms |
4980 KB |
Output is correct |
16 |
Correct |
46 ms |
10956 KB |
Output is correct |
17 |
Correct |
44 ms |
10436 KB |
Output is correct |
18 |
Correct |
44 ms |
9956 KB |
Output is correct |
19 |
Correct |
40 ms |
9948 KB |
Output is correct |
20 |
Correct |
40 ms |
9952 KB |
Output is correct |
21 |
Correct |
6 ms |
5416 KB |
Output is correct |
22 |
Correct |
50 ms |
10444 KB |
Output is correct |
23 |
Correct |
43 ms |
10376 KB |
Output is correct |
24 |
Correct |
37 ms |
9752 KB |
Output is correct |
25 |
Correct |
36 ms |
9804 KB |
Output is correct |
26 |
Correct |
38 ms |
9784 KB |
Output is correct |
27 |
Correct |
6 ms |
5420 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
67 ms |
13708 KB |
Output is correct |
2 |
Correct |
52 ms |
12492 KB |
Output is correct |
3 |
Correct |
50 ms |
11636 KB |
Output is correct |
4 |
Correct |
55 ms |
13984 KB |
Output is correct |
5 |
Correct |
54 ms |
12476 KB |
Output is correct |
6 |
Correct |
46 ms |
11684 KB |
Output is correct |
7 |
Correct |
54 ms |
13936 KB |
Output is correct |
8 |
Correct |
66 ms |
12576 KB |
Output is correct |
9 |
Correct |
49 ms |
11736 KB |
Output is correct |
10 |
Correct |
56 ms |
13980 KB |
Output is correct |
11 |
Correct |
50 ms |
12496 KB |
Output is correct |
12 |
Correct |
45 ms |
11728 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5016 KB |
Output is correct |
2 |
Correct |
2 ms |
5016 KB |
Output is correct |
3 |
Correct |
4 ms |
5220 KB |
Output is correct |
4 |
Correct |
3 ms |
5076 KB |
Output is correct |
5 |
Correct |
3 ms |
5076 KB |
Output is correct |
6 |
Correct |
3 ms |
5076 KB |
Output is correct |
7 |
Correct |
3 ms |
5076 KB |
Output is correct |
8 |
Correct |
3 ms |
5072 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5076 KB |
Output is correct |
11 |
Correct |
4 ms |
5076 KB |
Output is correct |
12 |
Correct |
3 ms |
5076 KB |
Output is correct |
13 |
Correct |
3 ms |
5076 KB |
Output is correct |
14 |
Correct |
4 ms |
5168 KB |
Output is correct |
15 |
Correct |
2 ms |
4980 KB |
Output is correct |
16 |
Correct |
46 ms |
10956 KB |
Output is correct |
17 |
Correct |
44 ms |
10436 KB |
Output is correct |
18 |
Correct |
44 ms |
9956 KB |
Output is correct |
19 |
Correct |
40 ms |
9948 KB |
Output is correct |
20 |
Correct |
40 ms |
9952 KB |
Output is correct |
21 |
Correct |
6 ms |
5416 KB |
Output is correct |
22 |
Correct |
50 ms |
10444 KB |
Output is correct |
23 |
Correct |
43 ms |
10376 KB |
Output is correct |
24 |
Correct |
37 ms |
9752 KB |
Output is correct |
25 |
Correct |
36 ms |
9804 KB |
Output is correct |
26 |
Correct |
38 ms |
9784 KB |
Output is correct |
27 |
Correct |
6 ms |
5420 KB |
Output is correct |
28 |
Correct |
67 ms |
13708 KB |
Output is correct |
29 |
Correct |
52 ms |
12492 KB |
Output is correct |
30 |
Correct |
50 ms |
11636 KB |
Output is correct |
31 |
Correct |
55 ms |
13984 KB |
Output is correct |
32 |
Correct |
54 ms |
12476 KB |
Output is correct |
33 |
Correct |
46 ms |
11684 KB |
Output is correct |
34 |
Correct |
54 ms |
13936 KB |
Output is correct |
35 |
Correct |
66 ms |
12576 KB |
Output is correct |
36 |
Correct |
49 ms |
11736 KB |
Output is correct |
37 |
Correct |
56 ms |
13980 KB |
Output is correct |
38 |
Correct |
50 ms |
12496 KB |
Output is correct |
39 |
Correct |
45 ms |
11728 KB |
Output is correct |
40 |
Correct |
82 ms |
21836 KB |
Output is correct |
41 |
Correct |
72 ms |
21868 KB |
Output is correct |
42 |
Correct |
74 ms |
24460 KB |
Output is correct |
43 |
Correct |
87 ms |
24480 KB |
Output is correct |
44 |
Correct |
63 ms |
18528 KB |
Output is correct |
45 |
Correct |
54 ms |
18452 KB |
Output is correct |
46 |
Correct |
48 ms |
10784 KB |
Output is correct |
47 |
Correct |
43 ms |
10712 KB |
Output is correct |
48 |
Correct |
39 ms |
10752 KB |
Output is correct |
49 |
Correct |
43 ms |
10772 KB |
Output is correct |
50 |
Correct |
71 ms |
13980 KB |
Output is correct |
51 |
Correct |
50 ms |
12448 KB |
Output is correct |
52 |
Correct |
57 ms |
11632 KB |
Output is correct |
53 |
Correct |
44 ms |
11820 KB |
Output is correct |
54 |
Correct |
64 ms |
14196 KB |
Output is correct |
55 |
Correct |
65 ms |
16212 KB |
Output is correct |
56 |
Correct |
58 ms |
13160 KB |
Output is correct |
57 |
Correct |
37 ms |
10436 KB |
Output is correct |