#include <bits/stdc++.h>
using namespace std;
void just_do_it();
int main() {
#ifdef KAMIRULEZ
freopen("kamirulez.inp", "r", stdin);
freopen("kamirulez.out", "w", stdout);
#endif
ios_base::sync_with_stdio(0);
cin.tie(0);
just_do_it();
return 0;
}
const int maxn = 1e5 + 20;
vector<int> adj[maxn];
bool can[55][55][55];
bool bad[maxn];
bool flag[maxn];
int n, m;
void dfs(int x, int a, int b) {
can[x][a][b] = true;
for (auto c: adj[b]) {
if (c != x && !can[x][a][c]) {
dfs(x, a, c);
}
}
}
void sub1() {
for (int x = 1; x <= n; x++) {
for (int a = 1; a <= n; a++) {
if (a != x) {
dfs(x, a, a);
}
}
bad[x] = false;
}
int res = 0;
for (int a = 1; a <= n; a++) {
for (int b = 1; b <= n; b++) {
if (b == a) {
continue;
}
for (int c = 1; c <= n; c++) {
if (c == a || c == b) {
continue;
}
bool ok = true;
for (int x = 1; x <= n; x++) {
if (x == b) {
continue;
}
if (!can[x][a][b] && !can[x][b][c]) {
ok = false;
break;
}
}
if (ok) {
res++;
}
}
}
}
cout << res;
}
void just_do_it() {
cin >> n >> m;
for (int i = 0; i < m; i++) {
int u, v;
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
if (n <= 50) {
sub1();
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2680 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
2 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2644 KB |
Output is correct |
9 |
Correct |
2 ms |
2644 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2644 KB |
Output is correct |
12 |
Correct |
2 ms |
2684 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2680 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2680 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2644 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
2 ms |
2644 KB |
Output is correct |
24 |
Correct |
2 ms |
2644 KB |
Output is correct |
25 |
Correct |
2 ms |
2644 KB |
Output is correct |
26 |
Correct |
2 ms |
2644 KB |
Output is correct |
27 |
Correct |
2 ms |
2644 KB |
Output is correct |
28 |
Correct |
3 ms |
2680 KB |
Output is correct |
29 |
Correct |
2 ms |
2644 KB |
Output is correct |
30 |
Correct |
2 ms |
2644 KB |
Output is correct |
31 |
Correct |
3 ms |
2644 KB |
Output is correct |
32 |
Correct |
2 ms |
2680 KB |
Output is correct |
33 |
Correct |
2 ms |
2676 KB |
Output is correct |
34 |
Correct |
3 ms |
2684 KB |
Output is correct |
35 |
Correct |
2 ms |
2644 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2680 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
2 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2644 KB |
Output is correct |
9 |
Correct |
2 ms |
2644 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2644 KB |
Output is correct |
12 |
Correct |
2 ms |
2684 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2680 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2680 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2644 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
2 ms |
2644 KB |
Output is correct |
24 |
Correct |
2 ms |
2644 KB |
Output is correct |
25 |
Correct |
2 ms |
2644 KB |
Output is correct |
26 |
Correct |
2 ms |
2644 KB |
Output is correct |
27 |
Correct |
2 ms |
2644 KB |
Output is correct |
28 |
Correct |
3 ms |
2680 KB |
Output is correct |
29 |
Correct |
2 ms |
2644 KB |
Output is correct |
30 |
Correct |
2 ms |
2644 KB |
Output is correct |
31 |
Correct |
3 ms |
2644 KB |
Output is correct |
32 |
Correct |
2 ms |
2680 KB |
Output is correct |
33 |
Correct |
2 ms |
2676 KB |
Output is correct |
34 |
Correct |
3 ms |
2684 KB |
Output is correct |
35 |
Correct |
2 ms |
2644 KB |
Output is correct |
36 |
Correct |
3 ms |
2772 KB |
Output is correct |
37 |
Correct |
4 ms |
2744 KB |
Output is correct |
38 |
Correct |
9 ms |
2804 KB |
Output is correct |
39 |
Correct |
14 ms |
2832 KB |
Output is correct |
40 |
Correct |
13 ms |
2804 KB |
Output is correct |
41 |
Correct |
3 ms |
2772 KB |
Output is correct |
42 |
Correct |
4 ms |
2772 KB |
Output is correct |
43 |
Correct |
3 ms |
2772 KB |
Output is correct |
44 |
Correct |
3 ms |
2772 KB |
Output is correct |
45 |
Correct |
3 ms |
2772 KB |
Output is correct |
46 |
Correct |
3 ms |
2772 KB |
Output is correct |
47 |
Correct |
2 ms |
2644 KB |
Output is correct |
48 |
Correct |
2 ms |
2772 KB |
Output is correct |
49 |
Correct |
3 ms |
2772 KB |
Output is correct |
50 |
Correct |
2 ms |
2808 KB |
Output is correct |
51 |
Correct |
8 ms |
2772 KB |
Output is correct |
52 |
Correct |
8 ms |
2804 KB |
Output is correct |
53 |
Correct |
10 ms |
2772 KB |
Output is correct |
54 |
Correct |
12 ms |
2832 KB |
Output is correct |
55 |
Correct |
12 ms |
2844 KB |
Output is correct |
56 |
Correct |
10 ms |
2836 KB |
Output is correct |
57 |
Correct |
9 ms |
2808 KB |
Output is correct |
58 |
Correct |
9 ms |
2772 KB |
Output is correct |
59 |
Correct |
7 ms |
2772 KB |
Output is correct |
60 |
Correct |
7 ms |
2808 KB |
Output is correct |
61 |
Correct |
6 ms |
2800 KB |
Output is correct |
62 |
Correct |
4 ms |
2772 KB |
Output is correct |
63 |
Correct |
10 ms |
2832 KB |
Output is correct |
64 |
Correct |
8 ms |
2772 KB |
Output is correct |
65 |
Correct |
7 ms |
2772 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
41 ms |
6988 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
3 ms |
2644 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
41 ms |
7060 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
3 ms |
2644 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
43 ms |
7108 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2680 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
2 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2644 KB |
Output is correct |
9 |
Correct |
2 ms |
2644 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2644 KB |
Output is correct |
12 |
Correct |
2 ms |
2684 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2680 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2680 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2644 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
2 ms |
2644 KB |
Output is correct |
24 |
Correct |
2 ms |
2644 KB |
Output is correct |
25 |
Correct |
2 ms |
2644 KB |
Output is correct |
26 |
Correct |
2 ms |
2644 KB |
Output is correct |
27 |
Correct |
2 ms |
2644 KB |
Output is correct |
28 |
Correct |
3 ms |
2680 KB |
Output is correct |
29 |
Correct |
2 ms |
2644 KB |
Output is correct |
30 |
Correct |
2 ms |
2644 KB |
Output is correct |
31 |
Correct |
3 ms |
2644 KB |
Output is correct |
32 |
Correct |
2 ms |
2680 KB |
Output is correct |
33 |
Correct |
2 ms |
2676 KB |
Output is correct |
34 |
Correct |
3 ms |
2684 KB |
Output is correct |
35 |
Correct |
2 ms |
2644 KB |
Output is correct |
36 |
Correct |
3 ms |
2772 KB |
Output is correct |
37 |
Correct |
4 ms |
2744 KB |
Output is correct |
38 |
Correct |
9 ms |
2804 KB |
Output is correct |
39 |
Correct |
14 ms |
2832 KB |
Output is correct |
40 |
Correct |
13 ms |
2804 KB |
Output is correct |
41 |
Correct |
3 ms |
2772 KB |
Output is correct |
42 |
Correct |
4 ms |
2772 KB |
Output is correct |
43 |
Correct |
3 ms |
2772 KB |
Output is correct |
44 |
Correct |
3 ms |
2772 KB |
Output is correct |
45 |
Correct |
3 ms |
2772 KB |
Output is correct |
46 |
Correct |
3 ms |
2772 KB |
Output is correct |
47 |
Correct |
2 ms |
2644 KB |
Output is correct |
48 |
Correct |
2 ms |
2772 KB |
Output is correct |
49 |
Correct |
3 ms |
2772 KB |
Output is correct |
50 |
Correct |
2 ms |
2808 KB |
Output is correct |
51 |
Correct |
8 ms |
2772 KB |
Output is correct |
52 |
Correct |
8 ms |
2804 KB |
Output is correct |
53 |
Correct |
10 ms |
2772 KB |
Output is correct |
54 |
Correct |
12 ms |
2832 KB |
Output is correct |
55 |
Correct |
12 ms |
2844 KB |
Output is correct |
56 |
Correct |
10 ms |
2836 KB |
Output is correct |
57 |
Correct |
9 ms |
2808 KB |
Output is correct |
58 |
Correct |
9 ms |
2772 KB |
Output is correct |
59 |
Correct |
7 ms |
2772 KB |
Output is correct |
60 |
Correct |
7 ms |
2808 KB |
Output is correct |
61 |
Correct |
6 ms |
2800 KB |
Output is correct |
62 |
Correct |
4 ms |
2772 KB |
Output is correct |
63 |
Correct |
10 ms |
2832 KB |
Output is correct |
64 |
Correct |
8 ms |
2772 KB |
Output is correct |
65 |
Correct |
7 ms |
2772 KB |
Output is correct |
66 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
67 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2680 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
2 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2644 KB |
Output is correct |
9 |
Correct |
2 ms |
2644 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2644 KB |
Output is correct |
12 |
Correct |
2 ms |
2684 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2680 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2680 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2644 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
2 ms |
2644 KB |
Output is correct |
24 |
Correct |
2 ms |
2644 KB |
Output is correct |
25 |
Correct |
2 ms |
2644 KB |
Output is correct |
26 |
Correct |
2 ms |
2644 KB |
Output is correct |
27 |
Correct |
2 ms |
2644 KB |
Output is correct |
28 |
Correct |
3 ms |
2680 KB |
Output is correct |
29 |
Correct |
2 ms |
2644 KB |
Output is correct |
30 |
Correct |
2 ms |
2644 KB |
Output is correct |
31 |
Correct |
3 ms |
2644 KB |
Output is correct |
32 |
Correct |
2 ms |
2680 KB |
Output is correct |
33 |
Correct |
2 ms |
2676 KB |
Output is correct |
34 |
Correct |
3 ms |
2684 KB |
Output is correct |
35 |
Correct |
2 ms |
2644 KB |
Output is correct |
36 |
Correct |
3 ms |
2772 KB |
Output is correct |
37 |
Correct |
4 ms |
2744 KB |
Output is correct |
38 |
Correct |
9 ms |
2804 KB |
Output is correct |
39 |
Correct |
14 ms |
2832 KB |
Output is correct |
40 |
Correct |
13 ms |
2804 KB |
Output is correct |
41 |
Correct |
3 ms |
2772 KB |
Output is correct |
42 |
Correct |
4 ms |
2772 KB |
Output is correct |
43 |
Correct |
3 ms |
2772 KB |
Output is correct |
44 |
Correct |
3 ms |
2772 KB |
Output is correct |
45 |
Correct |
3 ms |
2772 KB |
Output is correct |
46 |
Correct |
3 ms |
2772 KB |
Output is correct |
47 |
Correct |
2 ms |
2644 KB |
Output is correct |
48 |
Correct |
2 ms |
2772 KB |
Output is correct |
49 |
Correct |
3 ms |
2772 KB |
Output is correct |
50 |
Correct |
2 ms |
2808 KB |
Output is correct |
51 |
Correct |
8 ms |
2772 KB |
Output is correct |
52 |
Correct |
8 ms |
2804 KB |
Output is correct |
53 |
Correct |
10 ms |
2772 KB |
Output is correct |
54 |
Correct |
12 ms |
2832 KB |
Output is correct |
55 |
Correct |
12 ms |
2844 KB |
Output is correct |
56 |
Correct |
10 ms |
2836 KB |
Output is correct |
57 |
Correct |
9 ms |
2808 KB |
Output is correct |
58 |
Correct |
9 ms |
2772 KB |
Output is correct |
59 |
Correct |
7 ms |
2772 KB |
Output is correct |
60 |
Correct |
7 ms |
2808 KB |
Output is correct |
61 |
Correct |
6 ms |
2800 KB |
Output is correct |
62 |
Correct |
4 ms |
2772 KB |
Output is correct |
63 |
Correct |
10 ms |
2832 KB |
Output is correct |
64 |
Correct |
8 ms |
2772 KB |
Output is correct |
65 |
Correct |
7 ms |
2772 KB |
Output is correct |
66 |
Incorrect |
41 ms |
6988 KB |
Output isn't correct |
67 |
Halted |
0 ms |
0 KB |
- |