#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n, m;
vector<int> g[100000];
int par[100000];
bool vis[100000];
bool marked[100000];
void mark(int f)
{
marked[f] = true;
while (par[f] != f)
{
f = par[f];
marked[f] = true;
}
}
void dfs(int u, int f)
{
if (u == f)
{
mark(f);
return;
}
vis[u] = true;
for (int v : g[u])
if (!vis[v])
{
par[v] = u;
dfs(v, f);
}
vis[u] = false;
}
int main()
{
cin >> n >> m;
for (int i = 0, u, v; i < m; i++)
{
cin >> u >> v;
g[u-1].push_back(v-1);
g[v-1].push_back(u-1);
}
ll res = 0;
for (int s = 0; s < n; s++)
for (int f = 0; f < n; f++)
{
if (s == f) continue;
memset(vis, false, sizeof(vis));
memset(marked, false, sizeof(marked));
par[s] = s;
dfs(s, f);
for (int c = 0; c < n; c++)
if (c != s && c != f && marked[c])
res++;
}
cout << res << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
2772 KB |
Output is correct |
2 |
Correct |
3 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2864 KB |
Output is correct |
5 |
Correct |
2 ms |
2788 KB |
Output is correct |
6 |
Correct |
2 ms |
2784 KB |
Output is correct |
7 |
Correct |
2 ms |
2772 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
24 ms |
2840 KB |
Output is correct |
10 |
Correct |
533 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2772 KB |
Output is correct |
12 |
Correct |
2 ms |
2772 KB |
Output is correct |
13 |
Correct |
2 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2788 KB |
Output is correct |
15 |
Correct |
2 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2772 KB |
Output is correct |
17 |
Correct |
2 ms |
2784 KB |
Output is correct |
18 |
Correct |
2 ms |
2772 KB |
Output is correct |
19 |
Correct |
2 ms |
2772 KB |
Output is correct |
20 |
Correct |
2 ms |
2772 KB |
Output is correct |
21 |
Correct |
2 ms |
2772 KB |
Output is correct |
22 |
Correct |
2 ms |
2772 KB |
Output is correct |
23 |
Correct |
3 ms |
2772 KB |
Output is correct |
24 |
Correct |
2 ms |
2772 KB |
Output is correct |
25 |
Correct |
2 ms |
2772 KB |
Output is correct |
26 |
Correct |
2 ms |
2788 KB |
Output is correct |
27 |
Correct |
3 ms |
2772 KB |
Output is correct |
28 |
Correct |
2 ms |
2772 KB |
Output is correct |
29 |
Correct |
2 ms |
2784 KB |
Output is correct |
30 |
Correct |
2 ms |
2772 KB |
Output is correct |
31 |
Correct |
2 ms |
2784 KB |
Output is correct |
32 |
Correct |
2 ms |
2772 KB |
Output is correct |
33 |
Correct |
2 ms |
2772 KB |
Output is correct |
34 |
Correct |
2 ms |
2772 KB |
Output is correct |
35 |
Correct |
2 ms |
2772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
2772 KB |
Output is correct |
2 |
Correct |
3 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2864 KB |
Output is correct |
5 |
Correct |
2 ms |
2788 KB |
Output is correct |
6 |
Correct |
2 ms |
2784 KB |
Output is correct |
7 |
Correct |
2 ms |
2772 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
24 ms |
2840 KB |
Output is correct |
10 |
Correct |
533 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2772 KB |
Output is correct |
12 |
Correct |
2 ms |
2772 KB |
Output is correct |
13 |
Correct |
2 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2788 KB |
Output is correct |
15 |
Correct |
2 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2772 KB |
Output is correct |
17 |
Correct |
2 ms |
2784 KB |
Output is correct |
18 |
Correct |
2 ms |
2772 KB |
Output is correct |
19 |
Correct |
2 ms |
2772 KB |
Output is correct |
20 |
Correct |
2 ms |
2772 KB |
Output is correct |
21 |
Correct |
2 ms |
2772 KB |
Output is correct |
22 |
Correct |
2 ms |
2772 KB |
Output is correct |
23 |
Correct |
3 ms |
2772 KB |
Output is correct |
24 |
Correct |
2 ms |
2772 KB |
Output is correct |
25 |
Correct |
2 ms |
2772 KB |
Output is correct |
26 |
Correct |
2 ms |
2788 KB |
Output is correct |
27 |
Correct |
3 ms |
2772 KB |
Output is correct |
28 |
Correct |
2 ms |
2772 KB |
Output is correct |
29 |
Correct |
2 ms |
2784 KB |
Output is correct |
30 |
Correct |
2 ms |
2772 KB |
Output is correct |
31 |
Correct |
2 ms |
2784 KB |
Output is correct |
32 |
Correct |
2 ms |
2772 KB |
Output is correct |
33 |
Correct |
2 ms |
2772 KB |
Output is correct |
34 |
Correct |
2 ms |
2772 KB |
Output is correct |
35 |
Correct |
2 ms |
2772 KB |
Output is correct |
36 |
Correct |
14 ms |
2788 KB |
Output is correct |
37 |
Correct |
13 ms |
2772 KB |
Output is correct |
38 |
Correct |
44 ms |
2832 KB |
Output is correct |
39 |
Execution timed out |
1093 ms |
2788 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1075 ms |
13580 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1093 ms |
2796 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1088 ms |
7372 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1088 ms |
2772 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1049 ms |
7404 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
2772 KB |
Output is correct |
2 |
Correct |
3 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2864 KB |
Output is correct |
5 |
Correct |
2 ms |
2788 KB |
Output is correct |
6 |
Correct |
2 ms |
2784 KB |
Output is correct |
7 |
Correct |
2 ms |
2772 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
24 ms |
2840 KB |
Output is correct |
10 |
Correct |
533 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2772 KB |
Output is correct |
12 |
Correct |
2 ms |
2772 KB |
Output is correct |
13 |
Correct |
2 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2788 KB |
Output is correct |
15 |
Correct |
2 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2772 KB |
Output is correct |
17 |
Correct |
2 ms |
2784 KB |
Output is correct |
18 |
Correct |
2 ms |
2772 KB |
Output is correct |
19 |
Correct |
2 ms |
2772 KB |
Output is correct |
20 |
Correct |
2 ms |
2772 KB |
Output is correct |
21 |
Correct |
2 ms |
2772 KB |
Output is correct |
22 |
Correct |
2 ms |
2772 KB |
Output is correct |
23 |
Correct |
3 ms |
2772 KB |
Output is correct |
24 |
Correct |
2 ms |
2772 KB |
Output is correct |
25 |
Correct |
2 ms |
2772 KB |
Output is correct |
26 |
Correct |
2 ms |
2788 KB |
Output is correct |
27 |
Correct |
3 ms |
2772 KB |
Output is correct |
28 |
Correct |
2 ms |
2772 KB |
Output is correct |
29 |
Correct |
2 ms |
2784 KB |
Output is correct |
30 |
Correct |
2 ms |
2772 KB |
Output is correct |
31 |
Correct |
2 ms |
2784 KB |
Output is correct |
32 |
Correct |
2 ms |
2772 KB |
Output is correct |
33 |
Correct |
2 ms |
2772 KB |
Output is correct |
34 |
Correct |
2 ms |
2772 KB |
Output is correct |
35 |
Correct |
2 ms |
2772 KB |
Output is correct |
36 |
Correct |
14 ms |
2788 KB |
Output is correct |
37 |
Correct |
13 ms |
2772 KB |
Output is correct |
38 |
Correct |
44 ms |
2832 KB |
Output is correct |
39 |
Execution timed out |
1093 ms |
2788 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
2772 KB |
Output is correct |
2 |
Correct |
3 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2864 KB |
Output is correct |
5 |
Correct |
2 ms |
2788 KB |
Output is correct |
6 |
Correct |
2 ms |
2784 KB |
Output is correct |
7 |
Correct |
2 ms |
2772 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
24 ms |
2840 KB |
Output is correct |
10 |
Correct |
533 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2772 KB |
Output is correct |
12 |
Correct |
2 ms |
2772 KB |
Output is correct |
13 |
Correct |
2 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2788 KB |
Output is correct |
15 |
Correct |
2 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2772 KB |
Output is correct |
17 |
Correct |
2 ms |
2784 KB |
Output is correct |
18 |
Correct |
2 ms |
2772 KB |
Output is correct |
19 |
Correct |
2 ms |
2772 KB |
Output is correct |
20 |
Correct |
2 ms |
2772 KB |
Output is correct |
21 |
Correct |
2 ms |
2772 KB |
Output is correct |
22 |
Correct |
2 ms |
2772 KB |
Output is correct |
23 |
Correct |
3 ms |
2772 KB |
Output is correct |
24 |
Correct |
2 ms |
2772 KB |
Output is correct |
25 |
Correct |
2 ms |
2772 KB |
Output is correct |
26 |
Correct |
2 ms |
2788 KB |
Output is correct |
27 |
Correct |
3 ms |
2772 KB |
Output is correct |
28 |
Correct |
2 ms |
2772 KB |
Output is correct |
29 |
Correct |
2 ms |
2784 KB |
Output is correct |
30 |
Correct |
2 ms |
2772 KB |
Output is correct |
31 |
Correct |
2 ms |
2784 KB |
Output is correct |
32 |
Correct |
2 ms |
2772 KB |
Output is correct |
33 |
Correct |
2 ms |
2772 KB |
Output is correct |
34 |
Correct |
2 ms |
2772 KB |
Output is correct |
35 |
Correct |
2 ms |
2772 KB |
Output is correct |
36 |
Correct |
14 ms |
2788 KB |
Output is correct |
37 |
Correct |
13 ms |
2772 KB |
Output is correct |
38 |
Correct |
44 ms |
2832 KB |
Output is correct |
39 |
Execution timed out |
1093 ms |
2788 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |