#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define compress(v) sort(all(v)), v.erase(unique(all(v)), v.end())
using namespace std;
typedef long long ll;
typedef pair<int, int> p;
const int pw_2_15 = 32768;
const int pw_3_18 = 387420489;
const int mod = 998244353;
int pw[22];
int n, m, bit[22];
vector<int> g[22];
map<p, ll> dp;
bool in(int Set, int Elem){
return (Set & (1 << Elem)) != 0;
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(nullptr);
pw[0] = 1; for(int i=1; i<22; i++) pw[i] = pw[i-1] * 3;
cin >> n >> m;
for(int i=0; i<m; i++){
int s, e; cin >> s >> e; s--; e--;
g[s].push_back(e); g[e].push_back(s);
bit[s] |= (1 << e); bit[e] |= (1 << s);
}
dp[p(0, 0)] = 1;
for(auto i : dp){
int a = i.x.x, b = i.x.y; ll cnt = i.y;
for(int j=0; j<n; j++) if(!in(a|b, j)) {
int a_ = (a | (1 << j));
int b_ = ((b | ((1<<j)-1)) & ~bit[j] & ~a);
dp[p(a_, b_)] = (cnt + dp[p(a_, b_)]) % mod;
}
}
ll res = dp[p((1<<n)-1, 0)];
res = res * m % mod * (mod/2+1) % mod;
cout << res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
2 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
2 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
54 |
Correct |
2 ms |
512 KB |
Output is correct |
55 |
Correct |
2 ms |
512 KB |
Output is correct |
56 |
Correct |
3 ms |
640 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
512 KB |
Output is correct |
59 |
Correct |
2 ms |
512 KB |
Output is correct |
60 |
Correct |
1 ms |
384 KB |
Output is correct |
61 |
Correct |
1 ms |
512 KB |
Output is correct |
62 |
Correct |
2 ms |
512 KB |
Output is correct |
63 |
Correct |
2 ms |
512 KB |
Output is correct |
64 |
Correct |
2 ms |
512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
2 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
2 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
54 |
Correct |
2 ms |
512 KB |
Output is correct |
55 |
Correct |
2 ms |
512 KB |
Output is correct |
56 |
Correct |
3 ms |
640 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
512 KB |
Output is correct |
59 |
Correct |
2 ms |
512 KB |
Output is correct |
60 |
Correct |
1 ms |
384 KB |
Output is correct |
61 |
Correct |
1 ms |
512 KB |
Output is correct |
62 |
Correct |
2 ms |
512 KB |
Output is correct |
63 |
Correct |
2 ms |
512 KB |
Output is correct |
64 |
Correct |
2 ms |
512 KB |
Output is correct |
65 |
Correct |
85 ms |
6648 KB |
Output is correct |
66 |
Correct |
125 ms |
8668 KB |
Output is correct |
67 |
Correct |
111 ms |
7928 KB |
Output is correct |
68 |
Correct |
115 ms |
7416 KB |
Output is correct |
69 |
Correct |
28 ms |
2936 KB |
Output is correct |
70 |
Correct |
39 ms |
3576 KB |
Output is correct |
71 |
Correct |
41 ms |
3448 KB |
Output is correct |
72 |
Correct |
41 ms |
3512 KB |
Output is correct |
73 |
Correct |
39 ms |
3576 KB |
Output is correct |
74 |
Correct |
42 ms |
3576 KB |
Output is correct |
75 |
Correct |
50 ms |
3568 KB |
Output is correct |
76 |
Correct |
43 ms |
3576 KB |
Output is correct |
77 |
Correct |
186 ms |
15324 KB |
Output is correct |
78 |
Correct |
220 ms |
17016 KB |
Output is correct |
79 |
Correct |
325 ms |
21092 KB |
Output is correct |
80 |
Correct |
286 ms |
17528 KB |
Output is correct |
81 |
Correct |
328 ms |
19320 KB |
Output is correct |
82 |
Correct |
287 ms |
17420 KB |
Output is correct |
83 |
Correct |
309 ms |
16748 KB |
Output is correct |
84 |
Correct |
204 ms |
12024 KB |
Output is correct |
85 |
Correct |
67 ms |
5752 KB |
Output is correct |
86 |
Correct |
90 ms |
7032 KB |
Output is correct |
87 |
Correct |
90 ms |
7032 KB |
Output is correct |
88 |
Correct |
101 ms |
7032 KB |
Output is correct |
89 |
Correct |
99 ms |
7260 KB |
Output is correct |
90 |
Correct |
103 ms |
7380 KB |
Output is correct |
91 |
Correct |
100 ms |
7288 KB |
Output is correct |
92 |
Correct |
102 ms |
7288 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
2 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
2 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
54 |
Correct |
2 ms |
512 KB |
Output is correct |
55 |
Correct |
2 ms |
512 KB |
Output is correct |
56 |
Correct |
3 ms |
640 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
512 KB |
Output is correct |
59 |
Correct |
2 ms |
512 KB |
Output is correct |
60 |
Correct |
1 ms |
384 KB |
Output is correct |
61 |
Correct |
1 ms |
512 KB |
Output is correct |
62 |
Correct |
2 ms |
512 KB |
Output is correct |
63 |
Correct |
2 ms |
512 KB |
Output is correct |
64 |
Correct |
2 ms |
512 KB |
Output is correct |
65 |
Correct |
85 ms |
6648 KB |
Output is correct |
66 |
Correct |
125 ms |
8668 KB |
Output is correct |
67 |
Correct |
111 ms |
7928 KB |
Output is correct |
68 |
Correct |
115 ms |
7416 KB |
Output is correct |
69 |
Correct |
28 ms |
2936 KB |
Output is correct |
70 |
Correct |
39 ms |
3576 KB |
Output is correct |
71 |
Correct |
41 ms |
3448 KB |
Output is correct |
72 |
Correct |
41 ms |
3512 KB |
Output is correct |
73 |
Correct |
39 ms |
3576 KB |
Output is correct |
74 |
Correct |
42 ms |
3576 KB |
Output is correct |
75 |
Correct |
50 ms |
3568 KB |
Output is correct |
76 |
Correct |
43 ms |
3576 KB |
Output is correct |
77 |
Correct |
186 ms |
15324 KB |
Output is correct |
78 |
Correct |
220 ms |
17016 KB |
Output is correct |
79 |
Correct |
325 ms |
21092 KB |
Output is correct |
80 |
Correct |
286 ms |
17528 KB |
Output is correct |
81 |
Correct |
328 ms |
19320 KB |
Output is correct |
82 |
Correct |
287 ms |
17420 KB |
Output is correct |
83 |
Correct |
309 ms |
16748 KB |
Output is correct |
84 |
Correct |
204 ms |
12024 KB |
Output is correct |
85 |
Correct |
67 ms |
5752 KB |
Output is correct |
86 |
Correct |
90 ms |
7032 KB |
Output is correct |
87 |
Correct |
90 ms |
7032 KB |
Output is correct |
88 |
Correct |
101 ms |
7032 KB |
Output is correct |
89 |
Correct |
99 ms |
7260 KB |
Output is correct |
90 |
Correct |
103 ms |
7380 KB |
Output is correct |
91 |
Correct |
100 ms |
7288 KB |
Output is correct |
92 |
Correct |
102 ms |
7288 KB |
Output is correct |
93 |
Correct |
1303 ms |
62968 KB |
Output is correct |
94 |
Correct |
443 ms |
26748 KB |
Output is correct |
95 |
Correct |
189 ms |
18936 KB |
Output is correct |
96 |
Correct |
1375 ms |
67064 KB |
Output is correct |
97 |
Correct |
1151 ms |
66116 KB |
Output is correct |
98 |
Correct |
1082 ms |
61928 KB |
Output is correct |
99 |
Correct |
269 ms |
22776 KB |
Output is correct |
100 |
Correct |
518 ms |
35448 KB |
Output is correct |
101 |
Correct |
728 ms |
46072 KB |
Output is correct |
102 |
Correct |
813 ms |
48500 KB |
Output is correct |
103 |
Correct |
58 ms |
8568 KB |
Output is correct |
104 |
Correct |
81 ms |
9208 KB |
Output is correct |
105 |
Correct |
275 ms |
24760 KB |
Output is correct |
106 |
Correct |
1100 ms |
72184 KB |
Output is correct |
107 |
Correct |
126 ms |
16760 KB |
Output is correct |
108 |
Correct |
668 ms |
56532 KB |
Output is correct |
109 |
Correct |
2615 ms |
158292 KB |
Output is correct |
110 |
Execution timed out |
3081 ms |
165380 KB |
Time limit exceeded |
111 |
Halted |
0 ms |
0 KB |
- |