#include "bits/stdc++.h"
using namespace std;
#define ar array
typedef int64_t ll;
//~ #define int ll
const int mod = 119 << 23 | 1;
const int N = 18;
map<int, int> dp[1 << N];
int is[N];
int bp(int a, int b){
int c = 1;
while(b){
if(b & 1) c = c * 1ll * a % mod;
a = a * 1ll * a % mod, b >>= 1;
} return c;
}
signed main(){
ios::sync_with_stdio(0); cin.tie(0);
int n, m; cin>>n>>m;
for(int i=0;i<m;i++){
int a, b; cin>>a>>b;
--a, --b;
is[a] |= (1 << b);
is[b] |= (1 << a);
}
dp[0][0] = 1;
int tot = (1 << n) - 1;
for(int mask=0;mask <= tot;mask++){
for(int j=0;j<n;j++){
if(mask >> j & 1) continue;
int cur = (1 << j) - 1;
int on_j = mask | (1 << j);
for(int m2=on_j;m2 <= tot; m2++, m2 |= on_j){
int bad = m2 ^ on_j;
if(!dp[mask].count(bad)) continue;
int edge_out = tot ^ (is[j] ^ (is[j] & mask));
int bad2 = ((bad | cur) ^ (mask & cur)) & edge_out;
dp[on_j][bad2] = (dp[on_j][bad2] + dp[mask][bad]) % mod;
}
}
}
int res = dp[(1 << n) - 1][0];
//~ cout<<res<<"\n";
cout<<res * 1ll * bp(2, mod - 2) % mod * m % mod<<"\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
12500 KB |
Output is correct |
| 2 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 3 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 4 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 5 |
Correct |
6 ms |
12512 KB |
Output is correct |
| 6 |
Correct |
7 ms |
12588 KB |
Output is correct |
| 7 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 8 |
Correct |
7 ms |
12628 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
12500 KB |
Output is correct |
| 2 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 3 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 4 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 5 |
Correct |
6 ms |
12512 KB |
Output is correct |
| 6 |
Correct |
7 ms |
12588 KB |
Output is correct |
| 7 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 8 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 9 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 10 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 11 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 13 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 14 |
Correct |
8 ms |
12500 KB |
Output is correct |
| 15 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 16 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 17 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 18 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12596 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 22 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 24 |
Correct |
7 ms |
12628 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
12500 KB |
Output is correct |
| 2 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 3 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 4 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 5 |
Correct |
6 ms |
12512 KB |
Output is correct |
| 6 |
Correct |
7 ms |
12588 KB |
Output is correct |
| 7 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 8 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 9 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 10 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 11 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 13 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 14 |
Correct |
8 ms |
12500 KB |
Output is correct |
| 15 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 16 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 17 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 18 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12596 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 22 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 24 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 25 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 26 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 27 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 28 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 29 |
Correct |
9 ms |
12612 KB |
Output is correct |
| 30 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 31 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 32 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 33 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 34 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 35 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 36 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 37 |
Correct |
7 ms |
12544 KB |
Output is correct |
| 38 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 39 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 40 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 41 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 42 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 43 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 44 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 45 |
Correct |
8 ms |
12688 KB |
Output is correct |
| 46 |
Correct |
9 ms |
12668 KB |
Output is correct |
| 47 |
Correct |
8 ms |
12652 KB |
Output is correct |
| 48 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 49 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 50 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 51 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 52 |
Correct |
10 ms |
12708 KB |
Output is correct |
| 53 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 54 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 55 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 56 |
Correct |
12 ms |
12816 KB |
Output is correct |
| 57 |
Correct |
10 ms |
12756 KB |
Output is correct |
| 58 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 59 |
Correct |
11 ms |
12628 KB |
Output is correct |
| 60 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 61 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 62 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 63 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 64 |
Correct |
8 ms |
12628 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
12500 KB |
Output is correct |
| 2 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 3 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 4 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 5 |
Correct |
6 ms |
12512 KB |
Output is correct |
| 6 |
Correct |
7 ms |
12588 KB |
Output is correct |
| 7 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 8 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 9 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 10 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 11 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 13 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 14 |
Correct |
8 ms |
12500 KB |
Output is correct |
| 15 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 16 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 17 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 18 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12596 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 22 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 24 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 25 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 26 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 27 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 28 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 29 |
Correct |
9 ms |
12612 KB |
Output is correct |
| 30 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 31 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 32 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 33 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 34 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 35 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 36 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 37 |
Correct |
7 ms |
12544 KB |
Output is correct |
| 38 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 39 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 40 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 41 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 42 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 43 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 44 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 45 |
Correct |
8 ms |
12688 KB |
Output is correct |
| 46 |
Correct |
9 ms |
12668 KB |
Output is correct |
| 47 |
Correct |
8 ms |
12652 KB |
Output is correct |
| 48 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 49 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 50 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 51 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 52 |
Correct |
10 ms |
12708 KB |
Output is correct |
| 53 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 54 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 55 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 56 |
Correct |
12 ms |
12816 KB |
Output is correct |
| 57 |
Correct |
10 ms |
12756 KB |
Output is correct |
| 58 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 59 |
Correct |
11 ms |
12628 KB |
Output is correct |
| 60 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 61 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 62 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 63 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 64 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 65 |
Correct |
107 ms |
17204 KB |
Output is correct |
| 66 |
Correct |
138 ms |
18800 KB |
Output is correct |
| 67 |
Correct |
129 ms |
18256 KB |
Output is correct |
| 68 |
Correct |
156 ms |
17964 KB |
Output is correct |
| 69 |
Correct |
67 ms |
14528 KB |
Output is correct |
| 70 |
Correct |
71 ms |
14868 KB |
Output is correct |
| 71 |
Correct |
83 ms |
14892 KB |
Output is correct |
| 72 |
Correct |
97 ms |
14924 KB |
Output is correct |
| 73 |
Correct |
91 ms |
14952 KB |
Output is correct |
| 74 |
Correct |
79 ms |
15052 KB |
Output is correct |
| 75 |
Correct |
81 ms |
15084 KB |
Output is correct |
| 76 |
Correct |
80 ms |
15052 KB |
Output is correct |
| 77 |
Correct |
317 ms |
23736 KB |
Output is correct |
| 78 |
Correct |
370 ms |
25040 KB |
Output is correct |
| 79 |
Correct |
401 ms |
28168 KB |
Output is correct |
| 80 |
Correct |
410 ms |
25360 KB |
Output is correct |
| 81 |
Correct |
390 ms |
26800 KB |
Output is correct |
| 82 |
Correct |
397 ms |
25300 KB |
Output is correct |
| 83 |
Correct |
367 ms |
24768 KB |
Output is correct |
| 84 |
Correct |
354 ms |
21232 KB |
Output is correct |
| 85 |
Correct |
199 ms |
16572 KB |
Output is correct |
| 86 |
Correct |
302 ms |
17664 KB |
Output is correct |
| 87 |
Correct |
239 ms |
17516 KB |
Output is correct |
| 88 |
Correct |
223 ms |
17532 KB |
Output is correct |
| 89 |
Correct |
292 ms |
17828 KB |
Output is correct |
| 90 |
Correct |
238 ms |
17724 KB |
Output is correct |
| 91 |
Correct |
238 ms |
17800 KB |
Output is correct |
| 92 |
Correct |
289 ms |
17824 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
12500 KB |
Output is correct |
| 2 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 3 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 4 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 5 |
Correct |
6 ms |
12512 KB |
Output is correct |
| 6 |
Correct |
7 ms |
12588 KB |
Output is correct |
| 7 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 8 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 9 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 10 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 11 |
Correct |
6 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 13 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 14 |
Correct |
8 ms |
12500 KB |
Output is correct |
| 15 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 16 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 17 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 18 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12596 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 22 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 24 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 25 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 26 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 27 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 28 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 29 |
Correct |
9 ms |
12612 KB |
Output is correct |
| 30 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 31 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 32 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 33 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 34 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 35 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 36 |
Correct |
6 ms |
12628 KB |
Output is correct |
| 37 |
Correct |
7 ms |
12544 KB |
Output is correct |
| 38 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 39 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 40 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 41 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 42 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 43 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 44 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 45 |
Correct |
8 ms |
12688 KB |
Output is correct |
| 46 |
Correct |
9 ms |
12668 KB |
Output is correct |
| 47 |
Correct |
8 ms |
12652 KB |
Output is correct |
| 48 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 49 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 50 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 51 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 52 |
Correct |
10 ms |
12708 KB |
Output is correct |
| 53 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 54 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 55 |
Correct |
7 ms |
12628 KB |
Output is correct |
| 56 |
Correct |
12 ms |
12816 KB |
Output is correct |
| 57 |
Correct |
10 ms |
12756 KB |
Output is correct |
| 58 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 59 |
Correct |
11 ms |
12628 KB |
Output is correct |
| 60 |
Correct |
9 ms |
12628 KB |
Output is correct |
| 61 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 62 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 63 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 64 |
Correct |
8 ms |
12628 KB |
Output is correct |
| 65 |
Correct |
107 ms |
17204 KB |
Output is correct |
| 66 |
Correct |
138 ms |
18800 KB |
Output is correct |
| 67 |
Correct |
129 ms |
18256 KB |
Output is correct |
| 68 |
Correct |
156 ms |
17964 KB |
Output is correct |
| 69 |
Correct |
67 ms |
14528 KB |
Output is correct |
| 70 |
Correct |
71 ms |
14868 KB |
Output is correct |
| 71 |
Correct |
83 ms |
14892 KB |
Output is correct |
| 72 |
Correct |
97 ms |
14924 KB |
Output is correct |
| 73 |
Correct |
91 ms |
14952 KB |
Output is correct |
| 74 |
Correct |
79 ms |
15052 KB |
Output is correct |
| 75 |
Correct |
81 ms |
15084 KB |
Output is correct |
| 76 |
Correct |
80 ms |
15052 KB |
Output is correct |
| 77 |
Correct |
317 ms |
23736 KB |
Output is correct |
| 78 |
Correct |
370 ms |
25040 KB |
Output is correct |
| 79 |
Correct |
401 ms |
28168 KB |
Output is correct |
| 80 |
Correct |
410 ms |
25360 KB |
Output is correct |
| 81 |
Correct |
390 ms |
26800 KB |
Output is correct |
| 82 |
Correct |
397 ms |
25300 KB |
Output is correct |
| 83 |
Correct |
367 ms |
24768 KB |
Output is correct |
| 84 |
Correct |
354 ms |
21232 KB |
Output is correct |
| 85 |
Correct |
199 ms |
16572 KB |
Output is correct |
| 86 |
Correct |
302 ms |
17664 KB |
Output is correct |
| 87 |
Correct |
239 ms |
17516 KB |
Output is correct |
| 88 |
Correct |
223 ms |
17532 KB |
Output is correct |
| 89 |
Correct |
292 ms |
17828 KB |
Output is correct |
| 90 |
Correct |
238 ms |
17724 KB |
Output is correct |
| 91 |
Correct |
238 ms |
17800 KB |
Output is correct |
| 92 |
Correct |
289 ms |
17824 KB |
Output is correct |
| 93 |
Execution timed out |
3069 ms |
28872 KB |
Time limit exceeded |
| 94 |
Halted |
0 ms |
0 KB |
- |
