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답안 #404776

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
404776 2021-05-15T01:33:24 Z rama_pang Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 271 ms 10604 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);

  int N, K;
  cin >> N >> K;

  vector<int> deg(N);
  vector<vector<int>> adj(N);
  for (int u = 0; u < N; u++) {
    int sz;
    cin >> sz;
    while (sz--) {
      int v;
      cin >> v;
      deg[u]++;
      adj[u].emplace_back(v);
    }
  }

  vector<int> done(N);
  priority_queue<pair<int, int>> pq;
  for (int u = 0; u < N; u++) {
    sort(begin(adj[u]), end(adj[u]));
    pq.emplace(-deg[u], u);
  }

  int ans = 0;
  while (!pq.empty()) {
    int mn = pq.top().second;
    pq.pop();
    if (done[mn]) {
      continue;
    }

    done[mn] = 1;
    static vector<int> ls; ls = {mn};
    for (auto v : adj[mn]) if (!done[v]) {
      ls.emplace_back(v);
      deg[v]--;
      pq.emplace(-deg[v], v);
    }

    int n = ls.size();
    assert(n <= K);
    static array<int, 10> arr;
    for (int i = 0; i < n; i++) {
      arr[i] = 1 << i;
    }
    for (int i = 0; i < n; i++) {
      for (int j = i + 1; j < n; j++) {
        int u = ls[i], v = ls[j];
        if (binary_search(begin(adj[u]), end(adj[u]), v)) {
          arr[i] |= 1 << j;
          arr[j] |= 1 << i;
        }
      }
    }
    for (int mask = 1; mask < (1 << n); mask++) {
      int valid = mask;
      for (int i = 0; i < n; i++) if ((mask >> i) & 1) {
        valid &= arr[i];
      }
      if (valid == mask) {
        ans = max(ans, __builtin_popcount(mask));
      }
    }
  }

  cout << ans << '\n';
  return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 5 ms 716 KB Output is correct
4 Correct 4 ms 716 KB Output is correct
5 Correct 4 ms 716 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 4 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 3 ms 580 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 5 ms 716 KB Output is correct
4 Correct 4 ms 716 KB Output is correct
5 Correct 4 ms 716 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 4 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 3 ms 580 KB Output is correct
11 Correct 4 ms 712 KB Output is correct
12 Correct 4 ms 716 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 4 ms 820 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 716 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 5 ms 716 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 4 ms 716 KB Output is correct
21 Correct 3 ms 704 KB Output is correct
22 Correct 2 ms 588 KB Output is correct
23 Correct 7 ms 816 KB Output is correct
24 Correct 3 ms 588 KB Output is correct
25 Correct 5 ms 720 KB Output is correct
26 Correct 5 ms 720 KB Output is correct
27 Correct 4 ms 716 KB Output is correct
28 Correct 5 ms 720 KB Output is correct
29 Correct 4 ms 716 KB Output is correct
30 Correct 5 ms 716 KB Output is correct
31 Correct 6 ms 816 KB Output is correct
32 Correct 6 ms 812 KB Output is correct
33 Correct 6 ms 716 KB Output is correct
34 Correct 5 ms 716 KB Output is correct
35 Correct 3 ms 460 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 8 ms 972 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 10 ms 972 KB Output is correct
43 Correct 9 ms 968 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 588 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 2 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 254 ms 10600 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 253 ms 10604 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 230 ms 10556 KB Output is correct
16 Correct 234 ms 10548 KB Output is correct
17 Correct 271 ms 10524 KB Output is correct
18 Correct 238 ms 10532 KB Output is correct

Subtask #4
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 5 ms 716 KB Output is correct
4 Correct 4 ms 716 KB Output is correct
5 Correct 4 ms 716 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 4 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 3 ms 580 KB Output is correct
11 Correct 4 ms 712 KB Output is correct
12 Correct 4 ms 716 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 4 ms 820 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 716 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 5 ms 716 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 4 ms 716 KB Output is correct
21 Correct 3 ms 704 KB Output is correct
22 Correct 2 ms 588 KB Output is correct
23 Correct 7 ms 816 KB Output is correct
24 Correct 3 ms 588 KB Output is correct
25 Correct 5 ms 720 KB Output is correct
26 Correct 5 ms 720 KB Output is correct
27 Correct 4 ms 716 KB Output is correct
28 Correct 5 ms 720 KB Output is correct
29 Correct 4 ms 716 KB Output is correct
30 Correct 5 ms 716 KB Output is correct
31 Correct 6 ms 816 KB Output is correct
32 Correct 6 ms 812 KB Output is correct
33 Correct 6 ms 716 KB Output is correct
34 Correct 5 ms 716 KB Output is correct
35 Correct 3 ms 460 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 8 ms 972 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 10 ms 972 KB Output is correct
43 Correct 9 ms 968 KB Output is correct
44 Correct 30 ms 1000 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 9 ms 972 KB Output is correct
47 Correct 16 ms 1344 KB Output is correct
48 Correct 8 ms 892 KB Output is correct
49 Correct 16 ms 1268 KB Output is correct
50 Correct 17 ms 1356 KB Output is correct
51 Correct 96 ms 1976 KB Output is correct
52 Correct 5 ms 716 KB Output is correct
53 Correct 215 ms 2128 KB Output is correct
54 Correct 217 ms 2104 KB Output is correct
55 Correct 4 ms 716 KB Output is correct
56 Correct 4 ms 716 KB Output is correct
57 Correct 2 ms 588 KB Output is correct
58 Correct 212 ms 2108 KB Output is correct
59 Correct 8 ms 844 KB Output is correct
60 Correct 4 ms 716 KB Output is correct
61 Correct 7 ms 716 KB Output is correct
62 Correct 7 ms 844 KB Output is correct
63 Correct 31 ms 944 KB Output is correct
64 Correct 18 ms 884 KB Output is correct
65 Correct 7 ms 848 KB Output is correct
66 Correct 8 ms 716 KB Output is correct
67 Correct 28 ms 1404 KB Output is correct
68 Correct 24 ms 964 KB Output is correct
69 Correct 7 ms 848 KB Output is correct
70 Correct 14 ms 1104 KB Output is correct
71 Correct 26 ms 1360 KB Output is correct
72 Correct 23 ms 1312 KB Output is correct
73 Correct 4 ms 716 KB Output is correct
74 Correct 14 ms 1072 KB Output is correct
75 Correct 23 ms 1420 KB Output is correct
76 Correct 10 ms 972 KB Output is correct
77 Correct 42 ms 1528 KB Output is correct
78 Correct 4 ms 716 KB Output is correct
79 Correct 21 ms 928 KB Output is correct
80 Correct 11 ms 1100 KB Output is correct
81 Correct 45 ms 1488 KB Output is correct
82 Correct 2 ms 460 KB Output is correct
83 Correct 22 ms 928 KB Output is correct
84 Correct 22 ms 1420 KB Output is correct
85 Correct 2 ms 460 KB Output is correct
86 Correct 22 ms 1484 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 5 ms 716 KB Output is correct
4 Correct 4 ms 716 KB Output is correct
5 Correct 4 ms 716 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 4 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 3 ms 580 KB Output is correct
11 Correct 4 ms 712 KB Output is correct
12 Correct 4 ms 716 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 4 ms 820 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 716 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 5 ms 716 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 4 ms 716 KB Output is correct
21 Correct 3 ms 704 KB Output is correct
22 Correct 2 ms 588 KB Output is correct
23 Correct 7 ms 816 KB Output is correct
24 Correct 3 ms 588 KB Output is correct
25 Correct 5 ms 720 KB Output is correct
26 Correct 5 ms 720 KB Output is correct
27 Correct 4 ms 716 KB Output is correct
28 Correct 5 ms 720 KB Output is correct
29 Correct 4 ms 716 KB Output is correct
30 Correct 5 ms 716 KB Output is correct
31 Correct 6 ms 816 KB Output is correct
32 Correct 6 ms 812 KB Output is correct
33 Correct 6 ms 716 KB Output is correct
34 Correct 5 ms 716 KB Output is correct
35 Correct 3 ms 460 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 8 ms 972 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 10 ms 972 KB Output is correct
43 Correct 9 ms 968 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 122 ms 8116 KB Output is correct
46 Correct 65 ms 5084 KB Output is correct
47 Correct 124 ms 8212 KB Output is correct
48 Correct 113 ms 8304 KB Output is correct
49 Correct 34 ms 5040 KB Output is correct
50 Correct 134 ms 8768 KB Output is correct
51 Correct 175 ms 8136 KB Output is correct
52 Correct 38 ms 4936 KB Output is correct
53 Correct 34 ms 4852 KB Output is correct
54 Correct 11 ms 2572 KB Output is correct
55 Correct 131 ms 8668 KB Output is correct
56 Correct 26 ms 4440 KB Output is correct
57 Correct 38 ms 4968 KB Output is correct
58 Correct 53 ms 4992 KB Output is correct
59 Correct 26 ms 4436 KB Output is correct
60 Correct 27 ms 4428 KB Output is correct
61 Correct 51 ms 4996 KB Output is correct
62 Correct 48 ms 4684 KB Output is correct
63 Correct 66 ms 5784 KB Output is correct
64 Correct 25 ms 4408 KB Output is correct
65 Correct 84 ms 6336 KB Output is correct
66 Correct 37 ms 4672 KB Output is correct
67 Correct 69 ms 5872 KB Output is correct
68 Correct 80 ms 6212 KB Output is correct
69 Correct 86 ms 6356 KB Output is correct
70 Correct 35 ms 4684 KB Output is correct
71 Correct 95 ms 6164 KB Output is correct
72 Correct 82 ms 5708 KB Output is correct
73 Correct 97 ms 6624 KB Output is correct
74 Correct 36 ms 4676 KB Output is correct
75 Correct 36 ms 3076 KB Output is correct
76 Correct 66 ms 5904 KB Output is correct
77 Correct 97 ms 6636 KB Output is correct
78 Correct 48 ms 3528 KB Output is correct
79 Correct 36 ms 3088 KB Output is correct
80 Correct 17 ms 1784 KB Output is correct
81 Correct 47 ms 3472 KB Output is correct
82 Correct 75 ms 5792 KB Output is correct
83 Correct 16 ms 1868 KB Output is correct
84 Correct 73 ms 5824 KB Output is correct