oj.uz

Submission #1089789

# Submission time Handle Problem Language Result Execution time Memory
1089789 2024-09-17T07:06:06 Z juicy Amusement Park (CEOI19_amusementpark) C++17
100 / 100
 1459 ms 2644 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

int main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  const int M = 998244353;

  auto add = [&](int &x, int y) {
    if ((x += y) >= M) {
      x -= M;
    }
    if (x < 0) {
      x += M;
    }
  };
  auto pw = [&](int a, int b) {
    int res = 1;
    for (; b; a = (long long) a * a % M, b /= 2) {
      if (b & 1) {
        res = (long long) res * a % M;
      }
    }
    return res;
  };
  int n, m; cin >> n >> m;
  vector a(n, vector<bool>(n));
  for (int i = 0; i < m; ++i) {
    int u, v; cin >> u >> v; --u, --v;
    a[u][v] = a[v][u] = 1;
  }
  vector<int> ind(1 << n, 1);
  for (int i = 0; i < 1 << n; ++i) {
    for (int j = 0; j < n; ++j) {
      if (i >> j & 1) {
        for (int k = j + 1; k < n; ++k) {
          if (i >> k & 1) {
            ind[i] &= !a[j][k];
          }
        }
      }
    }
  }
  vector<int> cnt(1 << n);
  cnt[0] = 1;
  for (int i = 1; i < 1 << n; ++i) {
    for (int j = i; j; j = (j - 1) & i) {
      if (ind[j]) {
        if (__builtin_popcount(j) & 1) {
          add(cnt[i], cnt[i ^ j]);
        } else {
          add(cnt[i], -cnt[i ^ j]);
        }
      }
    }
  }
  cout << (long long) cnt.back() * m % M * pw(2, M - 2) % M;
  return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
7 Correct 1 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 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 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 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
7 Correct 1 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 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 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 348 KB Output is correct
22 Correct 1 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 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 600 KB Output is correct
42 Correct 1 ms 352 KB Output is correct
43 Correct 0 ms 352 KB Output is correct
44 Correct 0 ms 356 KB Output is correct
45 Correct 0 ms 356 KB Output is correct
46 Correct 1 ms 352 KB Output is correct
47 Correct 0 ms 352 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 360 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 452 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 1 ms 344 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
7 Correct 1 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 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 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 348 KB Output is correct
22 Correct 1 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 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 600 KB Output is correct
42 Correct 1 ms 352 KB Output is correct
43 Correct 0 ms 352 KB Output is correct
44 Correct 0 ms 356 KB Output is correct
45 Correct 0 ms 356 KB Output is correct
46 Correct 1 ms 352 KB Output is correct
47 Correct 0 ms 352 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 360 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 452 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 1 ms 344 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 10 ms 344 KB Output is correct
66 Correct 9 ms 580 KB Output is correct
67 Correct 8 ms 452 KB Output is correct
68 Correct 8 ms 348 KB Output is correct
69 Correct 16 ms 348 KB Output is correct
70 Correct 12 ms 348 KB Output is correct
71 Correct 12 ms 348 KB Output is correct
72 Correct 12 ms 588 KB Output is correct
73 Correct 10 ms 584 KB Output is correct
74 Correct 10 ms 344 KB Output is correct
75 Correct 10 ms 348 KB Output is correct
76 Correct 11 ms 348 KB Output is correct
77 Correct 32 ms 956 KB Output is correct
78 Correct 27 ms 600 KB Output is correct
79 Correct 28 ms 604 KB Output is correct
80 Correct 23 ms 600 KB Output is correct
81 Correct 22 ms 604 KB Output is correct
82 Correct 20 ms 724 KB Output is correct
83 Correct 20 ms 604 KB Output is correct
84 Correct 19 ms 600 KB Output is correct
85 Correct 44 ms 600 KB Output is correct
86 Correct 34 ms 600 KB Output is correct
87 Correct 33 ms 740 KB Output is correct
88 Correct 33 ms 604 KB Output is correct
89 Correct 33 ms 604 KB Output is correct
90 Correct 28 ms 736 KB Output is correct
91 Correct 27 ms 600 KB Output is correct
92 Correct 32 ms 604 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
7 Correct 1 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 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 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 348 KB Output is correct
22 Correct 1 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 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 600 KB Output is correct
42 Correct 1 ms 352 KB Output is correct
43 Correct 0 ms 352 KB Output is correct
44 Correct 0 ms 356 KB Output is correct
45 Correct 0 ms 356 KB Output is correct
46 Correct 1 ms 352 KB Output is correct
47 Correct 0 ms 352 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 360 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 452 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 1 ms 344 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 10 ms 344 KB Output is correct
66 Correct 9 ms 580 KB Output is correct
67 Correct 8 ms 452 KB Output is correct
68 Correct 8 ms 348 KB Output is correct
69 Correct 16 ms 348 KB Output is correct
70 Correct 12 ms 348 KB Output is correct
71 Correct 12 ms 348 KB Output is correct
72 Correct 12 ms 588 KB Output is correct
73 Correct 10 ms 584 KB Output is correct
74 Correct 10 ms 344 KB Output is correct
75 Correct 10 ms 348 KB Output is correct
76 Correct 11 ms 348 KB Output is correct
77 Correct 32 ms 956 KB Output is correct
78 Correct 27 ms 600 KB Output is correct
79 Correct 28 ms 604 KB Output is correct
80 Correct 23 ms 600 KB Output is correct
81 Correct 22 ms 604 KB Output is correct
82 Correct 20 ms 724 KB Output is correct
83 Correct 20 ms 604 KB Output is correct
84 Correct 19 ms 600 KB Output is correct
85 Correct 44 ms 600 KB Output is correct
86 Correct 34 ms 600 KB Output is correct
87 Correct 33 ms 740 KB Output is correct
88 Correct 33 ms 604 KB Output is correct
89 Correct 33 ms 604 KB Output is correct
90 Correct 28 ms 736 KB Output is correct
91 Correct 27 ms 600 KB Output is correct
92 Correct 32 ms 604 KB Output is correct
93 Correct 877 ms 2504 KB Output is correct
94 Correct 871 ms 2644 KB Output is correct
95 Correct 870 ms 2644 KB Output is correct
96 Correct 712 ms 2508 KB Output is correct
97 Correct 643 ms 2388 KB Output is correct
98 Correct 712 ms 2260 KB Output is correct
99 Correct 90 ms 856 KB Output is correct
100 Correct 82 ms 976 KB Output is correct
101 Correct 70 ms 860 KB Output is correct
102 Correct 68 ms 856 KB Output is correct
103 Correct 488 ms 1476 KB Output is correct
104 Correct 299 ms 1372 KB Output is correct
105 Correct 246 ms 1364 KB Output is correct
106 Correct 212 ms 1368 KB Output is correct
107 Correct 1459 ms 2500 KB Output is correct
108 Correct 739 ms 2384 KB Output is correct
109 Correct 615 ms 2504 KB Output is correct
110 Correct 508 ms 2260 KB Output is correct
111 Correct 58 ms 856 KB Output is correct
112 Correct 54 ms 968 KB Output is correct
113 Correct 52 ms 992 KB Output is correct
114 Correct 120 ms 856 KB Output is correct
115 Correct 99 ms 964 KB Output is correct
116 Correct 93 ms 856 KB Output is correct
117 Correct 95 ms 856 KB Output is correct
118 Correct 79 ms 860 KB Output is correct
119 Correct 77 ms 860 KB Output is correct
120 Correct 78 ms 860 KB Output is correct
121 Correct 77 ms 984 KB Output is correct
122 Correct 190 ms 1368 KB Output is correct
123 Correct 166 ms 1368 KB Output is correct
124 Correct 148 ms 1372 KB Output is correct
125 Correct 146 ms 1364 KB Output is correct
126 Correct 138 ms 1232 KB Output is correct
127 Correct 130 ms 1232 KB Output is correct
128 Correct 125 ms 1368 KB Output is correct
129 Correct 124 ms 1372 KB Output is correct
130 Correct 119 ms 1372 KB Output is correct
131 Correct 357 ms 1372 KB Output is correct
132 Correct 283 ms 1372 KB Output is correct
133 Correct 278 ms 1496 KB Output is correct
134 Correct 278 ms 1496 KB Output is correct
135 Correct 232 ms 1500 KB Output is correct
136 Correct 224 ms 1360 KB Output is correct
137 Correct 221 ms 1628 KB Output is correct
138 Correct 230 ms 1360 KB Output is correct
139 Correct 201 ms 1364 KB Output is correct
140 Correct 207 ms 1372 KB Output is correct
141 Correct 186 ms 1372 KB Output is correct
142 Correct 434 ms 2384 KB Output is correct
143 Correct 416 ms 2388 KB Output is correct
144 Correct 391 ms 2256 KB Output is correct
145 Correct 375 ms 2252 KB Output is correct
146 Correct 362 ms 2252 KB Output is correct
147 Correct 340 ms 2500 KB Output is correct
148 Correct 459 ms 2492 KB Output is correct
149 Correct 457 ms 2496 KB Output is correct
150 Correct 422 ms 2500 KB Output is correct
151 Correct 535 ms 2388 KB Output is correct
152 Correct 530 ms 2644 KB Output is correct
153 Correct 703 ms 2508 KB Output is correct
154 Correct 712 ms 2384 KB Output is correct
155 Correct 694 ms 2504 KB Output is correct
156 Correct 670 ms 2504 KB Output is correct
157 Correct 684 ms 2508 KB Output is correct
158 Correct 671 ms 2388 KB Output is correct
159 Correct 611 ms 2504 KB Output is correct
160 Correct 590 ms 2252 KB Output is correct
161 Correct 556 ms 2260 KB Output is correct
162 Correct 554 ms 2260 KB Output is correct
163 Correct 525 ms 2492 KB Output is correct
164 Correct 493 ms 2388 KB Output is correct
165 Correct 484 ms 2384 KB Output is correct
166 Correct 477 ms 2504 KB Output is correct
167 Correct 490 ms 2504 KB Output is correct