#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;
unordered_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;
for(int mask=0;mask < (1 << n);mask++){
for(int j=0;j<n;j++){
if(mask >> j & 1) continue;
int on_j = mask | (1 << j);
for(int m2=on_j;m2 < (1 << n); m2++, m2 |= on_j){
int bad = m2 ^ on_j;
if(!dp[mask].count(bad)) continue;
int edge_out = ((1 << n) - 1) ^ (is[j] ^ (is[j] & mask));
int bad2 = ((bad | ((1 << j) - 1)) ^ (mask & ((1 << j) - 1))) & 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";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14676 KB |
Output is correct |
2 |
Correct |
9 ms |
14588 KB |
Output is correct |
3 |
Correct |
10 ms |
14676 KB |
Output is correct |
4 |
Correct |
9 ms |
14676 KB |
Output is correct |
5 |
Correct |
8 ms |
14676 KB |
Output is correct |
6 |
Correct |
11 ms |
14612 KB |
Output is correct |
7 |
Correct |
10 ms |
14572 KB |
Output is correct |
8 |
Correct |
11 ms |
14676 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14676 KB |
Output is correct |
2 |
Correct |
9 ms |
14588 KB |
Output is correct |
3 |
Correct |
10 ms |
14676 KB |
Output is correct |
4 |
Correct |
9 ms |
14676 KB |
Output is correct |
5 |
Correct |
8 ms |
14676 KB |
Output is correct |
6 |
Correct |
11 ms |
14612 KB |
Output is correct |
7 |
Correct |
10 ms |
14572 KB |
Output is correct |
8 |
Correct |
11 ms |
14676 KB |
Output is correct |
9 |
Correct |
10 ms |
14604 KB |
Output is correct |
10 |
Correct |
8 ms |
14676 KB |
Output is correct |
11 |
Correct |
9 ms |
14688 KB |
Output is correct |
12 |
Correct |
9 ms |
14676 KB |
Output is correct |
13 |
Correct |
8 ms |
14676 KB |
Output is correct |
14 |
Correct |
11 ms |
14680 KB |
Output is correct |
15 |
Correct |
10 ms |
14676 KB |
Output is correct |
16 |
Correct |
9 ms |
14676 KB |
Output is correct |
17 |
Correct |
9 ms |
14676 KB |
Output is correct |
18 |
Correct |
9 ms |
14676 KB |
Output is correct |
19 |
Correct |
9 ms |
14660 KB |
Output is correct |
20 |
Correct |
9 ms |
14664 KB |
Output is correct |
21 |
Correct |
10 ms |
14676 KB |
Output is correct |
22 |
Correct |
12 ms |
14676 KB |
Output is correct |
23 |
Correct |
8 ms |
14676 KB |
Output is correct |
24 |
Correct |
8 ms |
14600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14676 KB |
Output is correct |
2 |
Correct |
9 ms |
14588 KB |
Output is correct |
3 |
Correct |
10 ms |
14676 KB |
Output is correct |
4 |
Correct |
9 ms |
14676 KB |
Output is correct |
5 |
Correct |
8 ms |
14676 KB |
Output is correct |
6 |
Correct |
11 ms |
14612 KB |
Output is correct |
7 |
Correct |
10 ms |
14572 KB |
Output is correct |
8 |
Correct |
11 ms |
14676 KB |
Output is correct |
9 |
Correct |
10 ms |
14604 KB |
Output is correct |
10 |
Correct |
8 ms |
14676 KB |
Output is correct |
11 |
Correct |
9 ms |
14688 KB |
Output is correct |
12 |
Correct |
9 ms |
14676 KB |
Output is correct |
13 |
Correct |
8 ms |
14676 KB |
Output is correct |
14 |
Correct |
11 ms |
14680 KB |
Output is correct |
15 |
Correct |
10 ms |
14676 KB |
Output is correct |
16 |
Correct |
9 ms |
14676 KB |
Output is correct |
17 |
Correct |
9 ms |
14676 KB |
Output is correct |
18 |
Correct |
9 ms |
14676 KB |
Output is correct |
19 |
Correct |
9 ms |
14660 KB |
Output is correct |
20 |
Correct |
9 ms |
14664 KB |
Output is correct |
21 |
Correct |
10 ms |
14676 KB |
Output is correct |
22 |
Correct |
12 ms |
14676 KB |
Output is correct |
23 |
Correct |
8 ms |
14676 KB |
Output is correct |
24 |
Correct |
8 ms |
14600 KB |
Output is correct |
25 |
Correct |
9 ms |
14644 KB |
Output is correct |
26 |
Correct |
10 ms |
14616 KB |
Output is correct |
27 |
Correct |
10 ms |
14680 KB |
Output is correct |
28 |
Correct |
8 ms |
14688 KB |
Output is correct |
29 |
Correct |
12 ms |
14700 KB |
Output is correct |
30 |
Correct |
8 ms |
14676 KB |
Output is correct |
31 |
Correct |
11 ms |
14700 KB |
Output is correct |
32 |
Correct |
9 ms |
14664 KB |
Output is correct |
33 |
Correct |
9 ms |
14676 KB |
Output is correct |
34 |
Correct |
9 ms |
14728 KB |
Output is correct |
35 |
Correct |
9 ms |
14692 KB |
Output is correct |
36 |
Correct |
9 ms |
14720 KB |
Output is correct |
37 |
Correct |
9 ms |
14672 KB |
Output is correct |
38 |
Correct |
9 ms |
14676 KB |
Output is correct |
39 |
Correct |
11 ms |
14676 KB |
Output is correct |
40 |
Correct |
9 ms |
14676 KB |
Output is correct |
41 |
Correct |
11 ms |
14676 KB |
Output is correct |
42 |
Correct |
13 ms |
14676 KB |
Output is correct |
43 |
Correct |
10 ms |
14676 KB |
Output is correct |
44 |
Correct |
10 ms |
14676 KB |
Output is correct |
45 |
Correct |
12 ms |
14776 KB |
Output is correct |
46 |
Correct |
10 ms |
14676 KB |
Output is correct |
47 |
Correct |
10 ms |
14676 KB |
Output is correct |
48 |
Correct |
8 ms |
14656 KB |
Output is correct |
49 |
Correct |
9 ms |
14676 KB |
Output is correct |
50 |
Correct |
9 ms |
14676 KB |
Output is correct |
51 |
Correct |
9 ms |
14676 KB |
Output is correct |
52 |
Correct |
12 ms |
14804 KB |
Output is correct |
53 |
Correct |
11 ms |
14804 KB |
Output is correct |
54 |
Correct |
11 ms |
14804 KB |
Output is correct |
55 |
Correct |
13 ms |
14868 KB |
Output is correct |
56 |
Correct |
15 ms |
15024 KB |
Output is correct |
57 |
Correct |
15 ms |
14820 KB |
Output is correct |
58 |
Correct |
13 ms |
14860 KB |
Output is correct |
59 |
Correct |
10 ms |
14804 KB |
Output is correct |
60 |
Correct |
10 ms |
14804 KB |
Output is correct |
61 |
Correct |
10 ms |
14804 KB |
Output is correct |
62 |
Correct |
11 ms |
14804 KB |
Output is correct |
63 |
Correct |
11 ms |
14804 KB |
Output is correct |
64 |
Correct |
10 ms |
14804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14676 KB |
Output is correct |
2 |
Correct |
9 ms |
14588 KB |
Output is correct |
3 |
Correct |
10 ms |
14676 KB |
Output is correct |
4 |
Correct |
9 ms |
14676 KB |
Output is correct |
5 |
Correct |
8 ms |
14676 KB |
Output is correct |
6 |
Correct |
11 ms |
14612 KB |
Output is correct |
7 |
Correct |
10 ms |
14572 KB |
Output is correct |
8 |
Correct |
11 ms |
14676 KB |
Output is correct |
9 |
Correct |
10 ms |
14604 KB |
Output is correct |
10 |
Correct |
8 ms |
14676 KB |
Output is correct |
11 |
Correct |
9 ms |
14688 KB |
Output is correct |
12 |
Correct |
9 ms |
14676 KB |
Output is correct |
13 |
Correct |
8 ms |
14676 KB |
Output is correct |
14 |
Correct |
11 ms |
14680 KB |
Output is correct |
15 |
Correct |
10 ms |
14676 KB |
Output is correct |
16 |
Correct |
9 ms |
14676 KB |
Output is correct |
17 |
Correct |
9 ms |
14676 KB |
Output is correct |
18 |
Correct |
9 ms |
14676 KB |
Output is correct |
19 |
Correct |
9 ms |
14660 KB |
Output is correct |
20 |
Correct |
9 ms |
14664 KB |
Output is correct |
21 |
Correct |
10 ms |
14676 KB |
Output is correct |
22 |
Correct |
12 ms |
14676 KB |
Output is correct |
23 |
Correct |
8 ms |
14676 KB |
Output is correct |
24 |
Correct |
8 ms |
14600 KB |
Output is correct |
25 |
Correct |
9 ms |
14644 KB |
Output is correct |
26 |
Correct |
10 ms |
14616 KB |
Output is correct |
27 |
Correct |
10 ms |
14680 KB |
Output is correct |
28 |
Correct |
8 ms |
14688 KB |
Output is correct |
29 |
Correct |
12 ms |
14700 KB |
Output is correct |
30 |
Correct |
8 ms |
14676 KB |
Output is correct |
31 |
Correct |
11 ms |
14700 KB |
Output is correct |
32 |
Correct |
9 ms |
14664 KB |
Output is correct |
33 |
Correct |
9 ms |
14676 KB |
Output is correct |
34 |
Correct |
9 ms |
14728 KB |
Output is correct |
35 |
Correct |
9 ms |
14692 KB |
Output is correct |
36 |
Correct |
9 ms |
14720 KB |
Output is correct |
37 |
Correct |
9 ms |
14672 KB |
Output is correct |
38 |
Correct |
9 ms |
14676 KB |
Output is correct |
39 |
Correct |
11 ms |
14676 KB |
Output is correct |
40 |
Correct |
9 ms |
14676 KB |
Output is correct |
41 |
Correct |
11 ms |
14676 KB |
Output is correct |
42 |
Correct |
13 ms |
14676 KB |
Output is correct |
43 |
Correct |
10 ms |
14676 KB |
Output is correct |
44 |
Correct |
10 ms |
14676 KB |
Output is correct |
45 |
Correct |
12 ms |
14776 KB |
Output is correct |
46 |
Correct |
10 ms |
14676 KB |
Output is correct |
47 |
Correct |
10 ms |
14676 KB |
Output is correct |
48 |
Correct |
8 ms |
14656 KB |
Output is correct |
49 |
Correct |
9 ms |
14676 KB |
Output is correct |
50 |
Correct |
9 ms |
14676 KB |
Output is correct |
51 |
Correct |
9 ms |
14676 KB |
Output is correct |
52 |
Correct |
12 ms |
14804 KB |
Output is correct |
53 |
Correct |
11 ms |
14804 KB |
Output is correct |
54 |
Correct |
11 ms |
14804 KB |
Output is correct |
55 |
Correct |
13 ms |
14868 KB |
Output is correct |
56 |
Correct |
15 ms |
15024 KB |
Output is correct |
57 |
Correct |
15 ms |
14820 KB |
Output is correct |
58 |
Correct |
13 ms |
14860 KB |
Output is correct |
59 |
Correct |
10 ms |
14804 KB |
Output is correct |
60 |
Correct |
10 ms |
14804 KB |
Output is correct |
61 |
Correct |
10 ms |
14804 KB |
Output is correct |
62 |
Correct |
11 ms |
14804 KB |
Output is correct |
63 |
Correct |
11 ms |
14804 KB |
Output is correct |
64 |
Correct |
10 ms |
14804 KB |
Output is correct |
65 |
Correct |
271 ms |
19648 KB |
Output is correct |
66 |
Correct |
281 ms |
20644 KB |
Output is correct |
67 |
Correct |
284 ms |
20360 KB |
Output is correct |
68 |
Correct |
269 ms |
20008 KB |
Output is correct |
69 |
Correct |
226 ms |
17752 KB |
Output is correct |
70 |
Correct |
204 ms |
17980 KB |
Output is correct |
71 |
Correct |
206 ms |
17920 KB |
Output is correct |
72 |
Correct |
195 ms |
17996 KB |
Output is correct |
73 |
Correct |
231 ms |
18128 KB |
Output is correct |
74 |
Correct |
208 ms |
18024 KB |
Output is correct |
75 |
Correct |
229 ms |
18044 KB |
Output is correct |
76 |
Correct |
215 ms |
18060 KB |
Output is correct |
77 |
Correct |
784 ms |
26340 KB |
Output is correct |
78 |
Correct |
770 ms |
27180 KB |
Output is correct |
79 |
Correct |
816 ms |
29948 KB |
Output is correct |
80 |
Correct |
806 ms |
27308 KB |
Output is correct |
81 |
Correct |
860 ms |
28400 KB |
Output is correct |
82 |
Correct |
861 ms |
27100 KB |
Output is correct |
83 |
Correct |
879 ms |
26580 KB |
Output is correct |
84 |
Correct |
793 ms |
24072 KB |
Output is correct |
85 |
Correct |
623 ms |
20912 KB |
Output is correct |
86 |
Correct |
630 ms |
21580 KB |
Output is correct |
87 |
Correct |
624 ms |
21580 KB |
Output is correct |
88 |
Correct |
670 ms |
21524 KB |
Output is correct |
89 |
Correct |
653 ms |
21732 KB |
Output is correct |
90 |
Correct |
656 ms |
21744 KB |
Output is correct |
91 |
Correct |
688 ms |
21692 KB |
Output is correct |
92 |
Correct |
670 ms |
21652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14676 KB |
Output is correct |
2 |
Correct |
9 ms |
14588 KB |
Output is correct |
3 |
Correct |
10 ms |
14676 KB |
Output is correct |
4 |
Correct |
9 ms |
14676 KB |
Output is correct |
5 |
Correct |
8 ms |
14676 KB |
Output is correct |
6 |
Correct |
11 ms |
14612 KB |
Output is correct |
7 |
Correct |
10 ms |
14572 KB |
Output is correct |
8 |
Correct |
11 ms |
14676 KB |
Output is correct |
9 |
Correct |
10 ms |
14604 KB |
Output is correct |
10 |
Correct |
8 ms |
14676 KB |
Output is correct |
11 |
Correct |
9 ms |
14688 KB |
Output is correct |
12 |
Correct |
9 ms |
14676 KB |
Output is correct |
13 |
Correct |
8 ms |
14676 KB |
Output is correct |
14 |
Correct |
11 ms |
14680 KB |
Output is correct |
15 |
Correct |
10 ms |
14676 KB |
Output is correct |
16 |
Correct |
9 ms |
14676 KB |
Output is correct |
17 |
Correct |
9 ms |
14676 KB |
Output is correct |
18 |
Correct |
9 ms |
14676 KB |
Output is correct |
19 |
Correct |
9 ms |
14660 KB |
Output is correct |
20 |
Correct |
9 ms |
14664 KB |
Output is correct |
21 |
Correct |
10 ms |
14676 KB |
Output is correct |
22 |
Correct |
12 ms |
14676 KB |
Output is correct |
23 |
Correct |
8 ms |
14676 KB |
Output is correct |
24 |
Correct |
8 ms |
14600 KB |
Output is correct |
25 |
Correct |
9 ms |
14644 KB |
Output is correct |
26 |
Correct |
10 ms |
14616 KB |
Output is correct |
27 |
Correct |
10 ms |
14680 KB |
Output is correct |
28 |
Correct |
8 ms |
14688 KB |
Output is correct |
29 |
Correct |
12 ms |
14700 KB |
Output is correct |
30 |
Correct |
8 ms |
14676 KB |
Output is correct |
31 |
Correct |
11 ms |
14700 KB |
Output is correct |
32 |
Correct |
9 ms |
14664 KB |
Output is correct |
33 |
Correct |
9 ms |
14676 KB |
Output is correct |
34 |
Correct |
9 ms |
14728 KB |
Output is correct |
35 |
Correct |
9 ms |
14692 KB |
Output is correct |
36 |
Correct |
9 ms |
14720 KB |
Output is correct |
37 |
Correct |
9 ms |
14672 KB |
Output is correct |
38 |
Correct |
9 ms |
14676 KB |
Output is correct |
39 |
Correct |
11 ms |
14676 KB |
Output is correct |
40 |
Correct |
9 ms |
14676 KB |
Output is correct |
41 |
Correct |
11 ms |
14676 KB |
Output is correct |
42 |
Correct |
13 ms |
14676 KB |
Output is correct |
43 |
Correct |
10 ms |
14676 KB |
Output is correct |
44 |
Correct |
10 ms |
14676 KB |
Output is correct |
45 |
Correct |
12 ms |
14776 KB |
Output is correct |
46 |
Correct |
10 ms |
14676 KB |
Output is correct |
47 |
Correct |
10 ms |
14676 KB |
Output is correct |
48 |
Correct |
8 ms |
14656 KB |
Output is correct |
49 |
Correct |
9 ms |
14676 KB |
Output is correct |
50 |
Correct |
9 ms |
14676 KB |
Output is correct |
51 |
Correct |
9 ms |
14676 KB |
Output is correct |
52 |
Correct |
12 ms |
14804 KB |
Output is correct |
53 |
Correct |
11 ms |
14804 KB |
Output is correct |
54 |
Correct |
11 ms |
14804 KB |
Output is correct |
55 |
Correct |
13 ms |
14868 KB |
Output is correct |
56 |
Correct |
15 ms |
15024 KB |
Output is correct |
57 |
Correct |
15 ms |
14820 KB |
Output is correct |
58 |
Correct |
13 ms |
14860 KB |
Output is correct |
59 |
Correct |
10 ms |
14804 KB |
Output is correct |
60 |
Correct |
10 ms |
14804 KB |
Output is correct |
61 |
Correct |
10 ms |
14804 KB |
Output is correct |
62 |
Correct |
11 ms |
14804 KB |
Output is correct |
63 |
Correct |
11 ms |
14804 KB |
Output is correct |
64 |
Correct |
10 ms |
14804 KB |
Output is correct |
65 |
Correct |
271 ms |
19648 KB |
Output is correct |
66 |
Correct |
281 ms |
20644 KB |
Output is correct |
67 |
Correct |
284 ms |
20360 KB |
Output is correct |
68 |
Correct |
269 ms |
20008 KB |
Output is correct |
69 |
Correct |
226 ms |
17752 KB |
Output is correct |
70 |
Correct |
204 ms |
17980 KB |
Output is correct |
71 |
Correct |
206 ms |
17920 KB |
Output is correct |
72 |
Correct |
195 ms |
17996 KB |
Output is correct |
73 |
Correct |
231 ms |
18128 KB |
Output is correct |
74 |
Correct |
208 ms |
18024 KB |
Output is correct |
75 |
Correct |
229 ms |
18044 KB |
Output is correct |
76 |
Correct |
215 ms |
18060 KB |
Output is correct |
77 |
Correct |
784 ms |
26340 KB |
Output is correct |
78 |
Correct |
770 ms |
27180 KB |
Output is correct |
79 |
Correct |
816 ms |
29948 KB |
Output is correct |
80 |
Correct |
806 ms |
27308 KB |
Output is correct |
81 |
Correct |
860 ms |
28400 KB |
Output is correct |
82 |
Correct |
861 ms |
27100 KB |
Output is correct |
83 |
Correct |
879 ms |
26580 KB |
Output is correct |
84 |
Correct |
793 ms |
24072 KB |
Output is correct |
85 |
Correct |
623 ms |
20912 KB |
Output is correct |
86 |
Correct |
630 ms |
21580 KB |
Output is correct |
87 |
Correct |
624 ms |
21580 KB |
Output is correct |
88 |
Correct |
670 ms |
21524 KB |
Output is correct |
89 |
Correct |
653 ms |
21732 KB |
Output is correct |
90 |
Correct |
656 ms |
21744 KB |
Output is correct |
91 |
Correct |
688 ms |
21692 KB |
Output is correct |
92 |
Correct |
670 ms |
21652 KB |
Output is correct |
93 |
Execution timed out |
3073 ms |
22260 KB |
Time limit exceeded |
94 |
Halted |
0 ms |
0 KB |
- |