oj.uz

답안 #971053

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
971053 2024-04-27T21:32:17 Z imann Amusement Park (CEOI19_amusementpark) C++17
42 / 100
 648 ms 4952 KB 
#include <iostream>
#include <array>
#include <algorithm>

using ll = long long;

const int MAX_N = 18 + 1;
const int MOD = 998244353;

std::array<std::array<bool, MAX_N>, MAX_N> graph;
std::array<ll, (1 << MAX_N)> dp, sSize;
std::array<bool, (1 << MAX_N)> sInd;

ll solve(int n) {
  sInd.fill(true);
  for (int s = 0; s < (1 << n); ++s) {
    int c = 0;
    for (int i = 0; i < n; ++i) {
      if (s & (1 << i)) {
        for (int j = 0; j < n; ++j) {
          if (s & (1 << j)) {
            if (graph[i][j]) {
              sInd[s] = false;
            }
          }
        }
        c++;
      }
    }
    sSize[s] = c;
  }

  dp[0] = 1;
  for (int s = 1; s < (1 << n); ++s) {
    std::vector<int> ones;
    for (int i = 0; i < n; ++i) {
      if ((1 << i) & s) {
        ones.push_back(i);
      }
    }
    for (int ss = 1; ss < (1 << ones.size()); ++ss) {
      int ssI = 0;
      for (int j = 0; j < ones.size(); ++j) {
        if (ss & (1 << j)) {
          ssI += (1 << ones[j]);
        }
      }
      if (sInd[ssI]) {
        if ((sSize[ssI] % 2) == 1) {
          dp[s] = (dp[s] + dp[s - ssI] + MOD) % MOD;
        } else {
          dp[s] = (dp[s] - dp[s - ssI] + MOD) % MOD;
        }
      }
    }
  }

  return dp[(1 << n) - 1];
}

int main() {
  int n, m; std::cin >> n >> m;
  for (int i = 0; i < m; ++i) {
    int a, b; std::cin >> a >> b; a--; b--;
    graph[a][b] = true;
    graph[b][a] = true;
  }
  std::cout << (m * solve(n) / 2) % MOD << std::endl;
}

Compilation message

amusementpark.cpp: In function 'll solve(int)':
amusementpark.cpp:43:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |       for (int j = 0; j < ones.size(); ++j) {
      |                       ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 2 ms 4540 KB Output is correct
3 Correct 3 ms 4700 KB Output is correct
4 Correct 3 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 2 ms 4540 KB Output is correct
3 Correct 3 ms 4700 KB Output is correct
4 Correct 3 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4732 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 2 ms 4696 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4728 KB Output is correct
23 Correct 1 ms 4952 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 2 ms 4540 KB Output is correct
3 Correct 3 ms 4700 KB Output is correct
4 Correct 3 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4732 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 2 ms 4696 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4728 KB Output is correct
23 Correct 1 ms 4952 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 4700 KB Output is correct
26 Correct 1 ms 4700 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 1 ms 4952 KB Output is correct
29 Correct 1 ms 4700 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 4700 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4700 KB Output is correct
36 Correct 1 ms 4700 KB Output is correct
37 Correct 1 ms 4696 KB Output is correct
38 Correct 1 ms 4700 KB Output is correct
39 Correct 1 ms 4700 KB Output is correct
40 Correct 1 ms 4700 KB Output is correct
41 Correct 2 ms 4700 KB Output is correct
42 Correct 2 ms 4700 KB Output is correct
43 Correct 1 ms 4724 KB Output is correct
44 Correct 1 ms 4952 KB Output is correct
45 Correct 1 ms 4700 KB Output is correct
46 Correct 1 ms 4700 KB Output is correct
47 Correct 1 ms 4700 KB Output is correct
48 Correct 1 ms 4700 KB Output is correct
49 Correct 1 ms 4540 KB Output is correct
50 Correct 2 ms 4700 KB Output is correct
51 Correct 1 ms 4700 KB Output is correct
52 Correct 2 ms 4700 KB Output is correct
53 Correct 2 ms 4700 KB Output is correct
54 Correct 3 ms 4700 KB Output is correct
55 Correct 2 ms 4700 KB Output is correct
56 Correct 3 ms 4700 KB Output is correct
57 Correct 2 ms 4700 KB Output is correct
58 Correct 2 ms 4696 KB Output is correct
59 Correct 2 ms 4700 KB Output is correct
60 Correct 2 ms 4696 KB Output is correct
61 Correct 2 ms 4700 KB Output is correct
62 Correct 2 ms 4700 KB Output is correct
63 Correct 2 ms 4700 KB Output is correct
64 Correct 2 ms 4696 KB Output is correct

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 2 ms 4540 KB Output is correct
3 Correct 3 ms 4700 KB Output is correct
4 Correct 3 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4732 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 2 ms 4696 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4728 KB Output is correct
23 Correct 1 ms 4952 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 4700 KB Output is correct
26 Correct 1 ms 4700 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 1 ms 4952 KB Output is correct
29 Correct 1 ms 4700 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 4700 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4700 KB Output is correct
36 Correct 1 ms 4700 KB Output is correct
37 Correct 1 ms 4696 KB Output is correct
38 Correct 1 ms 4700 KB Output is correct
39 Correct 1 ms 4700 KB Output is correct
40 Correct 1 ms 4700 KB Output is correct
41 Correct 2 ms 4700 KB Output is correct
42 Correct 2 ms 4700 KB Output is correct
43 Correct 1 ms 4724 KB Output is correct
44 Correct 1 ms 4952 KB Output is correct
45 Correct 1 ms 4700 KB Output is correct
46 Correct 1 ms 4700 KB Output is correct
47 Correct 1 ms 4700 KB Output is correct
48 Correct 1 ms 4700 KB Output is correct
49 Correct 1 ms 4540 KB Output is correct
50 Correct 2 ms 4700 KB Output is correct
51 Correct 1 ms 4700 KB Output is correct
52 Correct 2 ms 4700 KB Output is correct
53 Correct 2 ms 4700 KB Output is correct
54 Correct 3 ms 4700 KB Output is correct
55 Correct 2 ms 4700 KB Output is correct
56 Correct 3 ms 4700 KB Output is correct
57 Correct 2 ms 4700 KB Output is correct
58 Correct 2 ms 4696 KB Output is correct
59 Correct 2 ms 4700 KB Output is correct
60 Correct 2 ms 4696 KB Output is correct
61 Correct 2 ms 4700 KB Output is correct
62 Correct 2 ms 4700 KB Output is correct
63 Correct 2 ms 4700 KB Output is correct
64 Correct 2 ms 4696 KB Output is correct
65 Correct 197 ms 4700 KB Output is correct
66 Correct 195 ms 4724 KB Output is correct
67 Correct 192 ms 4700 KB Output is correct
68 Correct 191 ms 4708 KB Output is correct
69 Correct 217 ms 4700 KB Output is correct
70 Correct 207 ms 4700 KB Output is correct
71 Correct 205 ms 4952 KB Output is correct
72 Correct 196 ms 4696 KB Output is correct
73 Correct 198 ms 4700 KB Output is correct
74 Correct 200 ms 4696 KB Output is correct
75 Correct 203 ms 4708 KB Output is correct
76 Correct 187 ms 4700 KB Output is correct
77 Correct 645 ms 4724 KB Output is correct
78 Correct 648 ms 4948 KB Output is correct
79 Correct 646 ms 4460 KB Output is correct
80 Incorrect 636 ms 4704 KB Output isn't correct
81 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 2 ms 4540 KB Output is correct
3 Correct 3 ms 4700 KB Output is correct
4 Correct 3 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4732 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 2 ms 4696 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4728 KB Output is correct
23 Correct 1 ms 4952 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 4700 KB Output is correct
26 Correct 1 ms 4700 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 1 ms 4952 KB Output is correct
29 Correct 1 ms 4700 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 4700 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4700 KB Output is correct
36 Correct 1 ms 4700 KB Output is correct
37 Correct 1 ms 4696 KB Output is correct
38 Correct 1 ms 4700 KB Output is correct
39 Correct 1 ms 4700 KB Output is correct
40 Correct 1 ms 4700 KB Output is correct
41 Correct 2 ms 4700 KB Output is correct
42 Correct 2 ms 4700 KB Output is correct
43 Correct 1 ms 4724 KB Output is correct
44 Correct 1 ms 4952 KB Output is correct
45 Correct 1 ms 4700 KB Output is correct
46 Correct 1 ms 4700 KB Output is correct
47 Correct 1 ms 4700 KB Output is correct
48 Correct 1 ms 4700 KB Output is correct
49 Correct 1 ms 4540 KB Output is correct
50 Correct 2 ms 4700 KB Output is correct
51 Correct 1 ms 4700 KB Output is correct
52 Correct 2 ms 4700 KB Output is correct
53 Correct 2 ms 4700 KB Output is correct
54 Correct 3 ms 4700 KB Output is correct
55 Correct 2 ms 4700 KB Output is correct
56 Correct 3 ms 4700 KB Output is correct
57 Correct 2 ms 4700 KB Output is correct
58 Correct 2 ms 4696 KB Output is correct
59 Correct 2 ms 4700 KB Output is correct
60 Correct 2 ms 4696 KB Output is correct
61 Correct 2 ms 4700 KB Output is correct
62 Correct 2 ms 4700 KB Output is correct
63 Correct 2 ms 4700 KB Output is correct
64 Correct 2 ms 4696 KB Output is correct
65 Correct 197 ms 4700 KB Output is correct
66 Correct 195 ms 4724 KB Output is correct
67 Correct 192 ms 4700 KB Output is correct
68 Correct 191 ms 4708 KB Output is correct
69 Correct 217 ms 4700 KB Output is correct
70 Correct 207 ms 4700 KB Output is correct
71 Correct 205 ms 4952 KB Output is correct
72 Correct 196 ms 4696 KB Output is correct
73 Correct 198 ms 4700 KB Output is correct
74 Correct 200 ms 4696 KB Output is correct
75 Correct 203 ms 4708 KB Output is correct
76 Correct 187 ms 4700 KB Output is correct
77 Correct 645 ms 4724 KB Output is correct
78 Correct 648 ms 4948 KB Output is correct
79 Correct 646 ms 4460 KB Output is correct
80 Incorrect 636 ms 4704 KB Output isn't correct
81 Halted 0 ms 0 KB -