oj.uz

Submission #781191

# Submission time Handle Problem Language Result Execution time Memory
781191 2023-07-12T22:13:17 Z definitelynotmee Amusement Park (CEOI19_amusementpark) C++17
63 / 100
 3000 ms 10704 KB 
#include<bits/stdc++.h>
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
using matrix = vector<vector<T>>;
const int MOD = 998244353;

struct gc{
    int id, sign;
};

int main(){
    cin.tie(0)->sync_with_stdio(0);

    int n, m;
    cin >> n >> m;

    vector<int> adj(n);

    for(int i = 0; i < m; i++){
        int a, b;
        cin >> a >> b;
        a--, b--;
        adj[a]+=1<<b;
    }

    vector<int> incomp(1<<n);

    for(int i = 0; i < (1<<n); i++){
        int ok = 0;
        for(int j = 0; j < n; j++){
            if((1<<j)&i){
                ok|=adj[j];
            }
        }
        
        incomp[i] = !bool(ok&i);
        // cerr << bitset<4>(ok) << ' ' << bitset<4>(i) << "->" << incomp[i] << '\n';
    }

    vector<int> sum(1<<n), dp(1<<n);

    dp[0] = 1;
    
    matrix<gc> gray(n);
    gray[0] = {{0,1}};
    for(int i = 1; i < n; i++){
        gray[i] = gray[i-1];
        gray[i].push_back({i,1});
        for(int j = gray[i-1].size()-1; j >= 0; j--){
            gc cur = gray[i-1][j];
            cur.sign*=-1;
            gray[i].push_back(cur);

        }
    }

    // for(auto i : gray.back())
    //     cout << bitset<4>(i.mask) << ' ' << i.id << ' ' << i.sign << '\n';



    for(int mask = 1; mask < (1<<n); mask++){
        vector<int> cur;
        for(int j = 0 ; j < n; j++){
            if(mask&(1<<j))
                cur.push_back(j);
        }
        int p = -1, sub = 0;
        ll cursum = 0;
        for(gc i : gray[__builtin_popcount(mask)-1]){
            const int id = cur[i.id];
            
            sub+=(1<<id)*i.sign;
            cursum+=__builtin_popcount(adj[id]&mask)*i.sign;
            p*=-1;
            // cerr << bitset<4>(mask) << "->" << bitset<4>(sub) << '\n';

            const int comp = mask^sub;
            dp[mask]+=p*dp[comp]*incomp[sub];
            sum[mask]+=p*(cursum*dp[comp]+sum[comp])*incomp[sub]%MOD;
            if(dp[mask]>=MOD)
                dp[mask]-=MOD;
            if(sum[mask]>=MOD)
                sum[mask]-=MOD;
            if(dp[mask] < 0)
                dp[mask]+=MOD;
            if(sum[mask] < 0)
                sum[mask]+=MOD;
        }
    }
    if(sum[(1<<n)-1] < 0)
        sum[(1<<n)-1]+=MOD;

    cout << sum[(1<<n)-1] << '\n';

}

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 1 ms 300 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 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 1 ms 300 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 324 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 320 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 1 ms 300 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 324 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 320 KB Output is correct
25 Correct 0 ms 316 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 316 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 316 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 320 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 324 KB Output is correct
52 Correct 1 ms 320 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 320 KB Output is correct
58 Correct 1 ms 320 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 320 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 2 ms 340 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 1 ms 300 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 324 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 320 KB Output is correct
25 Correct 0 ms 316 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 316 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 316 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 320 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 324 KB Output is correct
52 Correct 1 ms 320 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 320 KB Output is correct
58 Correct 1 ms 320 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 320 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 2 ms 340 KB Output is correct
65 Correct 47 ms 964 KB Output is correct
66 Correct 45 ms 980 KB Output is correct
67 Correct 45 ms 980 KB Output is correct
68 Correct 45 ms 980 KB Output is correct
69 Correct 45 ms 980 KB Output is correct
70 Correct 49 ms 980 KB Output is correct
71 Correct 50 ms 980 KB Output is correct
72 Correct 47 ms 980 KB Output is correct
73 Correct 46 ms 980 KB Output is correct
74 Correct 49 ms 980 KB Output is correct
75 Correct 45 ms 980 KB Output is correct
76 Correct 51 ms 980 KB Output is correct
77 Correct 129 ms 1748 KB Output is correct
78 Correct 130 ms 1748 KB Output is correct
79 Correct 129 ms 1732 KB Output is correct
80 Correct 130 ms 1748 KB Output is correct
81 Correct 131 ms 1748 KB Output is correct
82 Correct 135 ms 1748 KB Output is correct
83 Correct 129 ms 1748 KB Output is correct
84 Correct 130 ms 1748 KB Output is correct
85 Correct 131 ms 1728 KB Output is correct
86 Correct 135 ms 1748 KB Output is correct
87 Correct 131 ms 1748 KB Output is correct
88 Correct 133 ms 1748 KB Output is correct
89 Correct 130 ms 1748 KB Output is correct
90 Correct 136 ms 1748 KB Output is correct
91 Correct 132 ms 1748 KB Output is correct
92 Correct 130 ms 1748 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 1 ms 300 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 324 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 320 KB Output is correct
25 Correct 0 ms 316 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 316 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 316 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 320 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 324 KB Output is correct
52 Correct 1 ms 320 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 320 KB Output is correct
58 Correct 1 ms 320 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 320 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 2 ms 340 KB Output is correct
65 Correct 47 ms 964 KB Output is correct
66 Correct 45 ms 980 KB Output is correct
67 Correct 45 ms 980 KB Output is correct
68 Correct 45 ms 980 KB Output is correct
69 Correct 45 ms 980 KB Output is correct
70 Correct 49 ms 980 KB Output is correct
71 Correct 50 ms 980 KB Output is correct
72 Correct 47 ms 980 KB Output is correct
73 Correct 46 ms 980 KB Output is correct
74 Correct 49 ms 980 KB Output is correct
75 Correct 45 ms 980 KB Output is correct
76 Correct 51 ms 980 KB Output is correct
77 Correct 129 ms 1748 KB Output is correct
78 Correct 130 ms 1748 KB Output is correct
79 Correct 129 ms 1732 KB Output is correct
80 Correct 130 ms 1748 KB Output is correct
81 Correct 131 ms 1748 KB Output is correct
82 Correct 135 ms 1748 KB Output is correct
83 Correct 129 ms 1748 KB Output is correct
84 Correct 130 ms 1748 KB Output is correct
85 Correct 131 ms 1728 KB Output is correct
86 Correct 135 ms 1748 KB Output is correct
87 Correct 131 ms 1748 KB Output is correct
88 Correct 133 ms 1748 KB Output is correct
89 Correct 130 ms 1748 KB Output is correct
90 Correct 136 ms 1748 KB Output is correct
91 Correct 132 ms 1748 KB Output is correct
92 Correct 130 ms 1748 KB Output is correct
93 Execution timed out 3071 ms 10704 KB Time limit exceeded
94 Halted 0 ms 0 KB -