oj.uz

Submission #582553

# Submission time Handle Problem Language Result Execution time Memory
582553 2022-06-24T05:26:30 Z 박상훈(#8369) Amusement Park (CEOI19_amusementpark) C++17
63 / 100
 2122 ms 3416 KB 
#include <bits/stdc++.h>

typedef long long ll;
using namespace std;
const int MOD = 998244353;
int adj[20][20], dp1[(1<<18)], dp2[(1<<18)], p[(1<<18)], cnt[18];

int main(){
    int n, m;
    scanf("%d %d", &n, &m);
    for (int i=1;i<=m;i++){
        int x, y;
        scanf("%d %d", &x, &y);
        --x, --y;
        adj[x][y] = 1;
        adj[y][x] = -1;
    }

    for (int z=0;z<(1<<n);z++){
        p[z] = 1;
        for (int i=0;i<n;i++) if (z&(1<<i)){
            for (int j=i+1;j<n;j++) if (z&(1<<j)){
                if (adj[i][j]) p[z] = 0;
            }
        }
    }

    for (int z=0;z<(1<<n);z++) if (__builtin_popcount(z)<2) dp2[z] = 1;

    for (int z=0;z<(1<<n);z++) if (__builtin_popcount(z)>=2){
        memset(cnt, 0, sizeof(cnt));
        for (int i=0;i<n;i++) if (z&(1<<i)){
            for (int j=0;j<n;j++) if (z&(1<<j) && adj[i][j]==-1) cnt[i]++;
        }


        for (int z2=z;z2;z2=(z2-1)&z) if (p[z2]){
            ll cst = 0;
            if (n<=15) {for (int i=0;i<n;i++) if (z2&(1<<i)) cst += cnt[i];}

            if (__builtin_popcount(z2)&1){
                dp1[z] += (cst * dp2[z^z2] + dp1[z^z2]) % MOD;
                dp2[z] += dp2[z^z2];

                if (dp1[z]>=MOD) dp1[z] -= MOD;
                if (dp2[z]>=MOD) dp2[z] -= MOD;
            }
            else{
                dp1[z] -= (cst * dp2[z^z2] + dp1[z^z2]) % MOD;
                dp2[z] -= dp2[z^z2];

                if (dp1[z]<0) dp1[z] += MOD;
                if (dp2[z]<0) dp2[z] += MOD;
            }
        }
    }
    printf("%d\n", dp1[(1<<n)-1]);
    return 0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
amusementpark.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%d %d", &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 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 0 ms 212 KB Output is correct
2 Correct 0 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 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 0 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 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 0 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 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 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 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 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 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 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 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 2 ms 212 KB Output is correct
53 Correct 2 ms 340 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 2 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 2 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 2 ms 332 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 320 KB Output is correct
64 Correct 2 ms 324 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 0 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 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 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 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 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 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 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 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 2 ms 212 KB Output is correct
53 Correct 2 ms 340 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 2 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 2 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 2 ms 332 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 320 KB Output is correct
64 Correct 2 ms 324 KB Output is correct
65 Correct 37 ms 460 KB Output is correct
66 Correct 33 ms 456 KB Output is correct
67 Correct 35 ms 468 KB Output is correct
68 Correct 33 ms 468 KB Output is correct
69 Correct 180 ms 424 KB Output is correct
70 Correct 122 ms 464 KB Output is correct
71 Correct 115 ms 416 KB Output is correct
72 Correct 106 ms 420 KB Output is correct
73 Correct 78 ms 448 KB Output is correct
74 Correct 77 ms 576 KB Output is correct
75 Correct 80 ms 416 KB Output is correct
76 Correct 72 ms 444 KB Output is correct
77 Correct 145 ms 652 KB Output is correct
78 Correct 107 ms 684 KB Output is correct
79 Correct 92 ms 580 KB Output is correct
80 Correct 79 ms 652 KB Output is correct
81 Correct 73 ms 688 KB Output is correct
82 Correct 65 ms 668 KB Output is correct
83 Correct 62 ms 588 KB Output is correct
84 Correct 56 ms 588 KB Output is correct
85 Correct 543 ms 808 KB Output is correct
86 Correct 341 ms 624 KB Output is correct
87 Correct 369 ms 772 KB Output is correct
88 Correct 327 ms 620 KB Output is correct
89 Correct 236 ms 656 KB Output is correct
90 Correct 233 ms 668 KB Output is correct
91 Correct 240 ms 684 KB Output is correct
92 Correct 228 ms 764 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 0 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 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 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 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 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 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 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 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 2 ms 212 KB Output is correct
53 Correct 2 ms 340 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 2 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 2 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 2 ms 332 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 2 ms 320 KB Output is correct
64 Correct 2 ms 324 KB Output is correct
65 Correct 37 ms 460 KB Output is correct
66 Correct 33 ms 456 KB Output is correct
67 Correct 35 ms 468 KB Output is correct
68 Correct 33 ms 468 KB Output is correct
69 Correct 180 ms 424 KB Output is correct
70 Correct 122 ms 464 KB Output is correct
71 Correct 115 ms 416 KB Output is correct
72 Correct 106 ms 420 KB Output is correct
73 Correct 78 ms 448 KB Output is correct
74 Correct 77 ms 576 KB Output is correct
75 Correct 80 ms 416 KB Output is correct
76 Correct 72 ms 444 KB Output is correct
77 Correct 145 ms 652 KB Output is correct
78 Correct 107 ms 684 KB Output is correct
79 Correct 92 ms 580 KB Output is correct
80 Correct 79 ms 652 KB Output is correct
81 Correct 73 ms 688 KB Output is correct
82 Correct 65 ms 668 KB Output is correct
83 Correct 62 ms 588 KB Output is correct
84 Correct 56 ms 588 KB Output is correct
85 Correct 543 ms 808 KB Output is correct
86 Correct 341 ms 624 KB Output is correct
87 Correct 369 ms 772 KB Output is correct
88 Correct 327 ms 620 KB Output is correct
89 Correct 236 ms 656 KB Output is correct
90 Correct 233 ms 668 KB Output is correct
91 Correct 240 ms 684 KB Output is correct
92 Correct 228 ms 764 KB Output is correct
93 Incorrect 2122 ms 3416 KB Output isn't correct
94 Halted 0 ms 0 KB -