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Submission #748188

# Submission time Handle Problem Language Result Execution time Memory
748188 2023-05-25T14:15:15 Z PVSekhar Amusement Park (CEOI19_amusementpark) C++14
63 / 100
 3000 ms 1076 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
// const ll MOD = 1e9+7;
const ll MOD = 998244353;
const ll N=18;
const ll inv=499122177;
int edges[N+1];
ll ans[(1<<N)+1];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    for(int i=0;i<=N;i++)edges[i]=0;
    for(int i=0;i<=N;i++)ans[i]=0;

    int n,m,a,b;
    cin>>n>>m;
    for (int i = 0; i < m; i++)
    {
        cin>>a>>b;
        a--;
        b--;
        edges[a]+=(1<<b);
        edges[b]+=(1<<a);
    }
    ans[0]=1;
    for (int i = 1; i < (1<<n); i++)
    {
        for (int j = i; j > 0; j=((j-1)&i))
        {
            int check=1,cnt=0;
            for (int k = 0; k < n; k++)
            {
                if((j^(1<<k))<j){
                    if((edges[k]&j))check=0;
                }
                if(!check)break;
            }
            if(!check)continue;
            for (int k = 0; k < n; k++)if((j^(1<<k))<j)cnt++;
            cnt%=2;
            // cout<<i<<" "<<j<<" "<<cnt<<"\n";
            if(cnt){
                ans[i]+=ans[i^j];
            }else{
                ans[i]-=ans[i^j];
                ans[i]+=MOD;
            }
            ans[i]%=MOD;
        }
    }
    cout<<(((ans[(1<<n)-1]*m)%MOD)*inv)%MOD<<"\n";
    return 0;   
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 2 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 328 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 2 ms 212 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 2 ms 340 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 340 KB Output is correct
64 Correct 2 ms 336 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 2 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 328 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 2 ms 212 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 2 ms 340 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 340 KB Output is correct
64 Correct 2 ms 336 KB Output is correct
65 Correct 64 ms 416 KB Output is correct
66 Correct 54 ms 352 KB Output is correct
67 Correct 45 ms 404 KB Output is correct
68 Correct 39 ms 340 KB Output is correct
69 Correct 180 ms 352 KB Output is correct
70 Correct 135 ms 432 KB Output is correct
71 Correct 141 ms 568 KB Output is correct
72 Correct 144 ms 608 KB Output is correct
73 Correct 94 ms 348 KB Output is correct
74 Correct 91 ms 436 KB Output is correct
75 Correct 97 ms 340 KB Output is correct
76 Correct 103 ms 340 KB Output is correct
77 Correct 213 ms 496 KB Output is correct
78 Correct 179 ms 512 KB Output is correct
79 Correct 172 ms 564 KB Output is correct
80 Correct 267 ms 460 KB Output is correct
81 Correct 120 ms 548 KB Output is correct
82 Correct 150 ms 460 KB Output is correct
83 Correct 105 ms 460 KB Output is correct
84 Correct 97 ms 544 KB Output is correct
85 Correct 701 ms 744 KB Output is correct
86 Correct 432 ms 656 KB Output is correct
87 Correct 451 ms 776 KB Output is correct
88 Correct 467 ms 620 KB Output is correct
89 Correct 300 ms 540 KB Output is correct
90 Correct 296 ms 512 KB Output is correct
91 Correct 345 ms 596 KB Output is correct
92 Correct 328 ms 544 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 2 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 328 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 2 ms 212 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 2 ms 340 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 340 KB Output is correct
64 Correct 2 ms 336 KB Output is correct
65 Correct 64 ms 416 KB Output is correct
66 Correct 54 ms 352 KB Output is correct
67 Correct 45 ms 404 KB Output is correct
68 Correct 39 ms 340 KB Output is correct
69 Correct 180 ms 352 KB Output is correct
70 Correct 135 ms 432 KB Output is correct
71 Correct 141 ms 568 KB Output is correct
72 Correct 144 ms 608 KB Output is correct
73 Correct 94 ms 348 KB Output is correct
74 Correct 91 ms 436 KB Output is correct
75 Correct 97 ms 340 KB Output is correct
76 Correct 103 ms 340 KB Output is correct
77 Correct 213 ms 496 KB Output is correct
78 Correct 179 ms 512 KB Output is correct
79 Correct 172 ms 564 KB Output is correct
80 Correct 267 ms 460 KB Output is correct
81 Correct 120 ms 548 KB Output is correct
82 Correct 150 ms 460 KB Output is correct
83 Correct 105 ms 460 KB Output is correct
84 Correct 97 ms 544 KB Output is correct
85 Correct 701 ms 744 KB Output is correct
86 Correct 432 ms 656 KB Output is correct
87 Correct 451 ms 776 KB Output is correct
88 Correct 467 ms 620 KB Output is correct
89 Correct 300 ms 540 KB Output is correct
90 Correct 296 ms 512 KB Output is correct
91 Correct 345 ms 596 KB Output is correct
92 Correct 328 ms 544 KB Output is correct
93 Execution timed out 3055 ms 1076 KB Time limit exceeded
94 Halted 0 ms 0 KB -