#include<bits/stdc++.h>
#define MAXN 600007
using namespace std;
const int mod=998244353;
const long long modd=1e15+1;
int n,m,a[4000],b[4000];
int perm[20],ans;
long long power[4000];
unordered_map<long long,int> s;
void check(){
int c=0;
long long hesh=0;
for(int i=1;i<=m;i++){
if(perm[a[i]]>perm[b[i]]){
c++; hesh+=power[i];
}
}
s[hesh]=c;
}
int main(){
cin>>n>>m;
power[0]=1;
for(int i=1;i<=m;i++){
cin>>a[i]>>b[i];
power[i]=(power[i-1]*2)%modd;
}
for(int i=1;i<=n;i++)perm[i]=i;
do{
check();
}while(next_permutation(perm+1,perm+n+1));
for(pair<long long,int> curr:s){
ans+=curr.second; ans%=mod;
}
cout<<ans<<"\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
436 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
436 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
440 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
436 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
436 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
440 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
2 ms |
348 KB |
Output is correct |
35 |
Correct |
3 ms |
604 KB |
Output is correct |
36 |
Correct |
4 ms |
840 KB |
Output is correct |
37 |
Correct |
7 ms |
1596 KB |
Output is correct |
38 |
Correct |
8 ms |
1976 KB |
Output is correct |
39 |
Correct |
5 ms |
348 KB |
Output is correct |
40 |
Correct |
6 ms |
348 KB |
Output is correct |
41 |
Correct |
12 ms |
516 KB |
Output is correct |
42 |
Correct |
14 ms |
680 KB |
Output is correct |
43 |
Correct |
24 ms |
1504 KB |
Output is correct |
44 |
Correct |
33 ms |
2736 KB |
Output is correct |
45 |
Correct |
49 ms |
5320 KB |
Output is correct |
46 |
Correct |
69 ms |
10112 KB |
Output is correct |
47 |
Correct |
99 ms |
19556 KB |
Output is correct |
48 |
Correct |
6 ms |
600 KB |
Output is correct |
49 |
Correct |
10 ms |
604 KB |
Output is correct |
50 |
Correct |
12 ms |
440 KB |
Output is correct |
51 |
Correct |
13 ms |
600 KB |
Output is correct |
52 |
Correct |
49 ms |
348 KB |
Output is correct |
53 |
Correct |
68 ms |
348 KB |
Output is correct |
54 |
Correct |
121 ms |
584 KB |
Output is correct |
55 |
Correct |
216 ms |
1708 KB |
Output is correct |
56 |
Correct |
248 ms |
9756 KB |
Output is correct |
57 |
Correct |
413 ms |
20924 KB |
Output is correct |
58 |
Correct |
832 ms |
43760 KB |
Output is correct |
59 |
Correct |
1443 ms |
86188 KB |
Output is correct |
60 |
Correct |
2710 ms |
162132 KB |
Output is correct |
61 |
Correct |
93 ms |
456 KB |
Output is correct |
62 |
Correct |
100 ms |
848 KB |
Output is correct |
63 |
Correct |
119 ms |
824 KB |
Output is correct |
64 |
Correct |
133 ms |
876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
436 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
436 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
440 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
2 ms |
348 KB |
Output is correct |
35 |
Correct |
3 ms |
604 KB |
Output is correct |
36 |
Correct |
4 ms |
840 KB |
Output is correct |
37 |
Correct |
7 ms |
1596 KB |
Output is correct |
38 |
Correct |
8 ms |
1976 KB |
Output is correct |
39 |
Correct |
5 ms |
348 KB |
Output is correct |
40 |
Correct |
6 ms |
348 KB |
Output is correct |
41 |
Correct |
12 ms |
516 KB |
Output is correct |
42 |
Correct |
14 ms |
680 KB |
Output is correct |
43 |
Correct |
24 ms |
1504 KB |
Output is correct |
44 |
Correct |
33 ms |
2736 KB |
Output is correct |
45 |
Correct |
49 ms |
5320 KB |
Output is correct |
46 |
Correct |
69 ms |
10112 KB |
Output is correct |
47 |
Correct |
99 ms |
19556 KB |
Output is correct |
48 |
Correct |
6 ms |
600 KB |
Output is correct |
49 |
Correct |
10 ms |
604 KB |
Output is correct |
50 |
Correct |
12 ms |
440 KB |
Output is correct |
51 |
Correct |
13 ms |
600 KB |
Output is correct |
52 |
Correct |
49 ms |
348 KB |
Output is correct |
53 |
Correct |
68 ms |
348 KB |
Output is correct |
54 |
Correct |
121 ms |
584 KB |
Output is correct |
55 |
Correct |
216 ms |
1708 KB |
Output is correct |
56 |
Correct |
248 ms |
9756 KB |
Output is correct |
57 |
Correct |
413 ms |
20924 KB |
Output is correct |
58 |
Correct |
832 ms |
43760 KB |
Output is correct |
59 |
Correct |
1443 ms |
86188 KB |
Output is correct |
60 |
Correct |
2710 ms |
162132 KB |
Output is correct |
61 |
Correct |
93 ms |
456 KB |
Output is correct |
62 |
Correct |
100 ms |
848 KB |
Output is correct |
63 |
Correct |
119 ms |
824 KB |
Output is correct |
64 |
Correct |
133 ms |
876 KB |
Output is correct |
65 |
Execution timed out |
3076 ms |
9744 KB |
Time limit exceeded |
66 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
436 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
436 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
440 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
2 ms |
348 KB |
Output is correct |
35 |
Correct |
3 ms |
604 KB |
Output is correct |
36 |
Correct |
4 ms |
840 KB |
Output is correct |
37 |
Correct |
7 ms |
1596 KB |
Output is correct |
38 |
Correct |
8 ms |
1976 KB |
Output is correct |
39 |
Correct |
5 ms |
348 KB |
Output is correct |
40 |
Correct |
6 ms |
348 KB |
Output is correct |
41 |
Correct |
12 ms |
516 KB |
Output is correct |
42 |
Correct |
14 ms |
680 KB |
Output is correct |
43 |
Correct |
24 ms |
1504 KB |
Output is correct |
44 |
Correct |
33 ms |
2736 KB |
Output is correct |
45 |
Correct |
49 ms |
5320 KB |
Output is correct |
46 |
Correct |
69 ms |
10112 KB |
Output is correct |
47 |
Correct |
99 ms |
19556 KB |
Output is correct |
48 |
Correct |
6 ms |
600 KB |
Output is correct |
49 |
Correct |
10 ms |
604 KB |
Output is correct |
50 |
Correct |
12 ms |
440 KB |
Output is correct |
51 |
Correct |
13 ms |
600 KB |
Output is correct |
52 |
Correct |
49 ms |
348 KB |
Output is correct |
53 |
Correct |
68 ms |
348 KB |
Output is correct |
54 |
Correct |
121 ms |
584 KB |
Output is correct |
55 |
Correct |
216 ms |
1708 KB |
Output is correct |
56 |
Correct |
248 ms |
9756 KB |
Output is correct |
57 |
Correct |
413 ms |
20924 KB |
Output is correct |
58 |
Correct |
832 ms |
43760 KB |
Output is correct |
59 |
Correct |
1443 ms |
86188 KB |
Output is correct |
60 |
Correct |
2710 ms |
162132 KB |
Output is correct |
61 |
Correct |
93 ms |
456 KB |
Output is correct |
62 |
Correct |
100 ms |
848 KB |
Output is correct |
63 |
Correct |
119 ms |
824 KB |
Output is correct |
64 |
Correct |
133 ms |
876 KB |
Output is correct |
65 |
Execution timed out |
3076 ms |
9744 KB |
Time limit exceeded |
66 |
Halted |
0 ms |
0 KB |
- |