| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1003138 |
2024-06-20T06:39:22 Z |
vjudge1 |
Subtree (INOI20_subtree) |
C++17 |
|
2000 ms |
2904 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define inf 0x3F3F3F3F3F3F3F3F
const int MXN = 1e5 + 5;
const int LOG = 20;
const int mod = 1e9 + 7;
vector<int> adj[MXN];
int msk, cyc, c;
int col[MXN], par[MXN];
void dfs(int a)
{
c++;
col[a] = 1;
for (int v : adj[a])
{
if (!(msk >> v & 1)) continue;
if (v == par[a]) continue;
if (col[v] == 1) cyc = 1;
if (!col[v])
{
par[v] = a;
dfs(v);
}
}
col[a] = 2;
}
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
for (int i = 1; i <= m; i++)
{
int u, v;
cin >> u >> v;
u--, v--;
adj[u].push_back(v);
adj[v].push_back(u);
}
int res = 0;
for (msk = 1; msk < (1LL << n); msk++)
{
c = 0, cyc = 0;
for (int i = 0; i < n; i++)
{
if (msk >> i & 1)
{
dfs(i);
break;
}
}
for (int i = 0; i < n; i++) par[i] = 0, col[i] = 0;
if (c == __builtin_popcount(msk) && !cyc) res++;
}
cout << res << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2808 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2752 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 10 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
13 ms |
2648 KB |
Output is correct |
| 13 |
Correct |
42 ms |
2652 KB |
Output is correct |
| 14 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
14 ms |
2816 KB |
Output is correct |
| 16 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
29 ms |
2648 KB |
Output is correct |
| 18 |
Correct |
16 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
16 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 22 |
Correct |
17 ms |
2648 KB |
Output is correct |
| 23 |
Correct |
63 ms |
2792 KB |
Output is correct |
| 24 |
Correct |
26 ms |
2648 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2804 KB |
Output is correct |
| 29 |
Correct |
15 ms |
2652 KB |
Output is correct |
| 30 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 31 |
Correct |
17 ms |
2652 KB |
Output is correct |
| 32 |
Correct |
14 ms |
2824 KB |
Output is correct |
| 33 |
Correct |
18 ms |
2652 KB |
Output is correct |
| 34 |
Correct |
29 ms |
2816 KB |
Output is correct |
| 35 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 36 |
Correct |
40 ms |
2792 KB |
Output is correct |
| 37 |
Correct |
44 ms |
2652 KB |
Output is correct |
| 38 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 39 |
Correct |
24 ms |
2652 KB |
Output is correct |
| 40 |
Correct |
25 ms |
2648 KB |
Output is correct |
| 41 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 42 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 43 |
Correct |
12 ms |
2652 KB |
Output is correct |
| 44 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 45 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 46 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 47 |
Correct |
31 ms |
2812 KB |
Output is correct |
| 48 |
Correct |
31 ms |
2796 KB |
Output is correct |
| 49 |
Correct |
27 ms |
2648 KB |
Output is correct |
| 50 |
Correct |
26 ms |
2652 KB |
Output is correct |
| 51 |
Correct |
27 ms |
2652 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
2037 ms |
2648 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2808 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2752 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 10 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
13 ms |
2648 KB |
Output is correct |
| 13 |
Correct |
42 ms |
2652 KB |
Output is correct |
| 14 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
14 ms |
2816 KB |
Output is correct |
| 16 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
29 ms |
2648 KB |
Output is correct |
| 18 |
Correct |
16 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
16 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 22 |
Correct |
17 ms |
2648 KB |
Output is correct |
| 23 |
Correct |
63 ms |
2792 KB |
Output is correct |
| 24 |
Correct |
26 ms |
2648 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2804 KB |
Output is correct |
| 29 |
Correct |
15 ms |
2652 KB |
Output is correct |
| 30 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 31 |
Correct |
17 ms |
2652 KB |
Output is correct |
| 32 |
Correct |
14 ms |
2824 KB |
Output is correct |
| 33 |
Correct |
18 ms |
2652 KB |
Output is correct |
| 34 |
Correct |
29 ms |
2816 KB |
Output is correct |
| 35 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 36 |
Correct |
40 ms |
2792 KB |
Output is correct |
| 37 |
Correct |
44 ms |
2652 KB |
Output is correct |
| 38 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 39 |
Correct |
24 ms |
2652 KB |
Output is correct |
| 40 |
Correct |
25 ms |
2648 KB |
Output is correct |
| 41 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 42 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 43 |
Correct |
12 ms |
2652 KB |
Output is correct |
| 44 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 45 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 46 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 47 |
Correct |
31 ms |
2812 KB |
Output is correct |
| 48 |
Correct |
31 ms |
2796 KB |
Output is correct |
| 49 |
Correct |
27 ms |
2648 KB |
Output is correct |
| 50 |
Correct |
26 ms |
2652 KB |
Output is correct |
| 51 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 52 |
Incorrect |
2 ms |
2904 KB |
Output isn't correct |
| 53 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2808 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2752 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 10 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
13 ms |
2648 KB |
Output is correct |
| 13 |
Correct |
42 ms |
2652 KB |
Output is correct |
| 14 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
14 ms |
2816 KB |
Output is correct |
| 16 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
29 ms |
2648 KB |
Output is correct |
| 18 |
Correct |
16 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
16 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
34 ms |
2652 KB |
Output is correct |
| 22 |
Correct |
17 ms |
2648 KB |
Output is correct |
| 23 |
Correct |
63 ms |
2792 KB |
Output is correct |
| 24 |
Correct |
26 ms |
2648 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2804 KB |
Output is correct |
| 29 |
Correct |
15 ms |
2652 KB |
Output is correct |
| 30 |
Correct |
30 ms |
2652 KB |
Output is correct |
| 31 |
Correct |
17 ms |
2652 KB |
Output is correct |
| 32 |
Correct |
14 ms |
2824 KB |
Output is correct |
| 33 |
Correct |
18 ms |
2652 KB |
Output is correct |
| 34 |
Correct |
29 ms |
2816 KB |
Output is correct |
| 35 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 36 |
Correct |
40 ms |
2792 KB |
Output is correct |
| 37 |
Correct |
44 ms |
2652 KB |
Output is correct |
| 38 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 39 |
Correct |
24 ms |
2652 KB |
Output is correct |
| 40 |
Correct |
25 ms |
2648 KB |
Output is correct |
| 41 |
Correct |
28 ms |
2652 KB |
Output is correct |
| 42 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 43 |
Correct |
12 ms |
2652 KB |
Output is correct |
| 44 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 45 |
Correct |
32 ms |
2648 KB |
Output is correct |
| 46 |
Correct |
29 ms |
2652 KB |
Output is correct |
| 47 |
Correct |
31 ms |
2812 KB |
Output is correct |
| 48 |
Correct |
31 ms |
2796 KB |
Output is correct |
| 49 |
Correct |
27 ms |
2648 KB |
Output is correct |
| 50 |
Correct |
26 ms |
2652 KB |
Output is correct |
| 51 |
Correct |
27 ms |
2652 KB |
Output is correct |
| 52 |
Execution timed out |
2037 ms |
2648 KB |
Time limit exceeded |
| 53 |
Halted |
0 ms |
0 KB |
- |
