#include <iostream>
#include <set>
using namespace std;
set<int> s[100005];
int main() {
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
long long int n, m, c = 0;
cin >> n >> m;
for (int i = 1; i <= m; i++) {
int u, v;
cin >> u >> v;
if (u > v) swap(u, v);
s[u].insert(v);
}
for (int i = 1; i <= n; i++) {
if (s[i].empty()) continue;
c += s[i].size();
int h = *s[i].begin();
s[i].erase(s[i].begin());
if (s[i].size() > s[h].size()) s[h].swap(s[i]);
for (int w : s[i]) s[h].insert(w);
s[i].clear();
}
cout << c;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
4 ms |
5212 KB |
Output is correct |
4 |
Correct |
2 ms |
5212 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5316 KB |
Output is correct |
7 |
Correct |
2 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5220 KB |
Output is correct |
9 |
Correct |
1 ms |
4960 KB |
Output is correct |
10 |
Correct |
2 ms |
5220 KB |
Output is correct |
11 |
Correct |
2 ms |
5212 KB |
Output is correct |
12 |
Correct |
2 ms |
5216 KB |
Output is correct |
13 |
Correct |
2 ms |
5172 KB |
Output is correct |
14 |
Correct |
2 ms |
5224 KB |
Output is correct |
15 |
Correct |
1 ms |
4960 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
4 ms |
5212 KB |
Output is correct |
4 |
Correct |
2 ms |
5212 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5316 KB |
Output is correct |
7 |
Correct |
2 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5220 KB |
Output is correct |
9 |
Correct |
1 ms |
4960 KB |
Output is correct |
10 |
Correct |
2 ms |
5220 KB |
Output is correct |
11 |
Correct |
2 ms |
5212 KB |
Output is correct |
12 |
Correct |
2 ms |
5216 KB |
Output is correct |
13 |
Correct |
2 ms |
5172 KB |
Output is correct |
14 |
Correct |
2 ms |
5224 KB |
Output is correct |
15 |
Correct |
1 ms |
4960 KB |
Output is correct |
16 |
Correct |
49 ms |
10592 KB |
Output is correct |
17 |
Correct |
38 ms |
10592 KB |
Output is correct |
18 |
Correct |
53 ms |
10608 KB |
Output is correct |
19 |
Correct |
36 ms |
10600 KB |
Output is correct |
20 |
Correct |
55 ms |
10772 KB |
Output is correct |
21 |
Correct |
3 ms |
5208 KB |
Output is correct |
22 |
Correct |
39 ms |
10588 KB |
Output is correct |
23 |
Correct |
41 ms |
10520 KB |
Output is correct |
24 |
Correct |
36 ms |
10496 KB |
Output is correct |
25 |
Correct |
35 ms |
10588 KB |
Output is correct |
26 |
Correct |
38 ms |
10692 KB |
Output is correct |
27 |
Correct |
3 ms |
5212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
52 ms |
10764 KB |
Output is correct |
2 |
Correct |
59 ms |
10800 KB |
Output is correct |
3 |
Correct |
46 ms |
10840 KB |
Output is correct |
4 |
Correct |
48 ms |
10844 KB |
Output is correct |
5 |
Correct |
46 ms |
10840 KB |
Output is correct |
6 |
Correct |
49 ms |
10964 KB |
Output is correct |
7 |
Correct |
48 ms |
10620 KB |
Output is correct |
8 |
Correct |
56 ms |
10956 KB |
Output is correct |
9 |
Correct |
44 ms |
11088 KB |
Output is correct |
10 |
Correct |
58 ms |
10852 KB |
Output is correct |
11 |
Correct |
47 ms |
10948 KB |
Output is correct |
12 |
Correct |
45 ms |
10832 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
4 ms |
5212 KB |
Output is correct |
4 |
Correct |
2 ms |
5212 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5316 KB |
Output is correct |
7 |
Correct |
2 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5220 KB |
Output is correct |
9 |
Correct |
1 ms |
4960 KB |
Output is correct |
10 |
Correct |
2 ms |
5220 KB |
Output is correct |
11 |
Correct |
2 ms |
5212 KB |
Output is correct |
12 |
Correct |
2 ms |
5216 KB |
Output is correct |
13 |
Correct |
2 ms |
5172 KB |
Output is correct |
14 |
Correct |
2 ms |
5224 KB |
Output is correct |
15 |
Correct |
1 ms |
4960 KB |
Output is correct |
16 |
Correct |
49 ms |
10592 KB |
Output is correct |
17 |
Correct |
38 ms |
10592 KB |
Output is correct |
18 |
Correct |
53 ms |
10608 KB |
Output is correct |
19 |
Correct |
36 ms |
10600 KB |
Output is correct |
20 |
Correct |
55 ms |
10772 KB |
Output is correct |
21 |
Correct |
3 ms |
5208 KB |
Output is correct |
22 |
Correct |
39 ms |
10588 KB |
Output is correct |
23 |
Correct |
41 ms |
10520 KB |
Output is correct |
24 |
Correct |
36 ms |
10496 KB |
Output is correct |
25 |
Correct |
35 ms |
10588 KB |
Output is correct |
26 |
Correct |
38 ms |
10692 KB |
Output is correct |
27 |
Correct |
3 ms |
5212 KB |
Output is correct |
28 |
Correct |
52 ms |
10764 KB |
Output is correct |
29 |
Correct |
59 ms |
10800 KB |
Output is correct |
30 |
Correct |
46 ms |
10840 KB |
Output is correct |
31 |
Correct |
48 ms |
10844 KB |
Output is correct |
32 |
Correct |
46 ms |
10840 KB |
Output is correct |
33 |
Correct |
49 ms |
10964 KB |
Output is correct |
34 |
Correct |
48 ms |
10620 KB |
Output is correct |
35 |
Correct |
56 ms |
10956 KB |
Output is correct |
36 |
Correct |
44 ms |
11088 KB |
Output is correct |
37 |
Correct |
58 ms |
10852 KB |
Output is correct |
38 |
Correct |
47 ms |
10948 KB |
Output is correct |
39 |
Correct |
45 ms |
10832 KB |
Output is correct |
40 |
Correct |
83 ms |
10800 KB |
Output is correct |
41 |
Correct |
66 ms |
10796 KB |
Output is correct |
42 |
Correct |
65 ms |
10844 KB |
Output is correct |
43 |
Correct |
78 ms |
10832 KB |
Output is correct |
44 |
Correct |
49 ms |
10880 KB |
Output is correct |
45 |
Correct |
64 ms |
10832 KB |
Output is correct |
46 |
Correct |
38 ms |
10788 KB |
Output is correct |
47 |
Correct |
38 ms |
10828 KB |
Output is correct |
48 |
Correct |
35 ms |
10836 KB |
Output is correct |
49 |
Correct |
61 ms |
10832 KB |
Output is correct |
50 |
Correct |
50 ms |
10832 KB |
Output is correct |
51 |
Correct |
48 ms |
10820 KB |
Output is correct |
52 |
Correct |
63 ms |
10832 KB |
Output is correct |
53 |
Correct |
50 ms |
10832 KB |
Output is correct |
54 |
Correct |
65 ms |
10836 KB |
Output is correct |
55 |
Correct |
54 ms |
10832 KB |
Output is correct |
56 |
Correct |
49 ms |
11400 KB |
Output is correct |
57 |
Correct |
35 ms |
10576 KB |
Output is correct |