oj.uz

Submission #591658

# Submission time Handle Problem Language Result Execution time Memory
591658 2022-07-07T17:57:05 Z Shin Political Development (BOI17_politicaldevelopment) C++14
100 / 100
 176 ms 10396 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define all(x) x.begin(), x.end()
 
using namespace std;
template <class X, class Y> bool minimize(X &a, Y b) {
    if (a > b) return a = b, true;
    return false;
}
template <class X, class Y> bool maximize(X &a, Y b) {
    if (a < b) return a = b, true;
    return false;
}
 
const int N = 5e4 + 7;
int n, k;
int deg[N];
bool vis[N];
bool dp[1 << 10];
bool has_edge[11][11];
 
vector<int> node;
vector<int> adj[N];
 
signed main() {
  cin.tie(0)->sync_with_stdio(0);
  cin >> n >> k;
  priority_queue<pair<int, int>> heap;
  for (int i = 1; i <= n; i ++) {
    cin >> deg[i];
    heap.emplace(- deg[i], i);
    for (int j = 0; j < deg[i]; j ++) {
      int u; cin >> u;
      u ++;
      adj[i].push_back(u);
    }
    sort(all(adj[i]));
  }
 
  auto calc = [&]() {
    int m = node.size();
    memset(has_edge, false, sizeof has_edge);
    for (int i = 0; i < m; i ++) {
      for (int j = 0; j < m; j ++) {
        has_edge[i][j] = binary_search(all(adj[node[i]]), node[j]);
      }
    }
    int res = 0;
    dp[0] = true;
    for (int mask = 1; mask < 1 << m; mask ++) {
      int f = -1;
      dp[mask] = true;
      for (int i = 0; i < m; i ++) {
        if (~mask >> i & 1) {
          continue;
        }
        if (f == -1) {
          f = i;
          dp[mask] = dp[mask ^ (1 << i)];
        } else {
          dp[mask] &= has_edge[f][i];
        }
      }
      if (dp[mask]) {
        maximize(res, __builtin_popcount(mask));
      }
    }
    return res;
  };
 
  int res = 0;
  while (!heap.empty()) {
    int u = heap.top().se;
    heap.pop();
    if (vis[u]) {
      continue;
    }
    vis[u] = true;
    node.clear();
    for (int v: adj[u]) if (!vis[v]) {
      deg[v] --;
      heap.emplace(-deg[v], v);
      node.push_back(v);
    }
    maximize(res, calc() + 1);
  }
  cout << res;
  return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 4 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1748 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 2 ms 1620 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1620 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 4 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1748 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 2 ms 1620 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1620 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 4 ms 1776 KB Output is correct
13 Correct 1 ms 1508 KB Output is correct
14 Correct 4 ms 1748 KB Output is correct
15 Correct 2 ms 1508 KB Output is correct
16 Correct 5 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 4 ms 1748 KB Output is correct
19 Correct 1 ms 1620 KB Output is correct
20 Correct 3 ms 1772 KB Output is correct
21 Correct 3 ms 1748 KB Output is correct
22 Correct 2 ms 1620 KB Output is correct
23 Correct 5 ms 1752 KB Output is correct
24 Correct 2 ms 1620 KB Output is correct
25 Correct 5 ms 1752 KB Output is correct
26 Correct 4 ms 1752 KB Output is correct
27 Correct 3 ms 1776 KB Output is correct
28 Correct 5 ms 1752 KB Output is correct
29 Correct 5 ms 1748 KB Output is correct
30 Correct 5 ms 1748 KB Output is correct
31 Correct 6 ms 1776 KB Output is correct
32 Correct 6 ms 1744 KB Output is correct
33 Correct 5 ms 1748 KB Output is correct
34 Correct 4 ms 1744 KB Output is correct
35 Correct 3 ms 1648 KB Output is correct
36 Correct 3 ms 1588 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 2 ms 1620 KB Output is correct
39 Correct 2 ms 1620 KB Output is correct
40 Correct 7 ms 1876 KB Output is correct
41 Correct 2 ms 1620 KB Output is correct
42 Correct 6 ms 1900 KB Output is correct
43 Correct 6 ms 1876 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1620 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 2 ms 1492 KB Output is correct
5 Correct 2 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1492 KB Output is correct
11 Correct 166 ms 10312 KB Output is correct
12 Correct 1 ms 1492 KB Output is correct
13 Correct 176 ms 10296 KB Output is correct
14 Correct 1 ms 1492 KB Output is correct
15 Correct 158 ms 10396 KB Output is correct
16 Correct 159 ms 10372 KB Output is correct
17 Correct 175 ms 10264 KB Output is correct
18 Correct 161 ms 10360 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 4 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1748 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 2 ms 1620 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1620 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 4 ms 1776 KB Output is correct
13 Correct 1 ms 1508 KB Output is correct
14 Correct 4 ms 1748 KB Output is correct
15 Correct 2 ms 1508 KB Output is correct
16 Correct 5 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 4 ms 1748 KB Output is correct
19 Correct 1 ms 1620 KB Output is correct
20 Correct 3 ms 1772 KB Output is correct
21 Correct 3 ms 1748 KB Output is correct
22 Correct 2 ms 1620 KB Output is correct
23 Correct 5 ms 1752 KB Output is correct
24 Correct 2 ms 1620 KB Output is correct
25 Correct 5 ms 1752 KB Output is correct
26 Correct 4 ms 1752 KB Output is correct
27 Correct 3 ms 1776 KB Output is correct
28 Correct 5 ms 1752 KB Output is correct
29 Correct 5 ms 1748 KB Output is correct
30 Correct 5 ms 1748 KB Output is correct
31 Correct 6 ms 1776 KB Output is correct
32 Correct 6 ms 1744 KB Output is correct
33 Correct 5 ms 1748 KB Output is correct
34 Correct 4 ms 1744 KB Output is correct
35 Correct 3 ms 1648 KB Output is correct
36 Correct 3 ms 1588 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 2 ms 1620 KB Output is correct
39 Correct 2 ms 1620 KB Output is correct
40 Correct 7 ms 1876 KB Output is correct
41 Correct 2 ms 1620 KB Output is correct
42 Correct 6 ms 1900 KB Output is correct
43 Correct 6 ms 1876 KB Output is correct
44 Correct 15 ms 2008 KB Output is correct
45 Correct 1 ms 1492 KB Output is correct
46 Correct 7 ms 1876 KB Output is correct
47 Correct 13 ms 2284 KB Output is correct
48 Correct 7 ms 1876 KB Output is correct
49 Correct 16 ms 2260 KB Output is correct
50 Correct 14 ms 2260 KB Output is correct
51 Correct 42 ms 2920 KB Output is correct
52 Correct 3 ms 1776 KB Output is correct
53 Correct 60 ms 3144 KB Output is correct
54 Correct 72 ms 3080 KB Output is correct
55 Correct 4 ms 1780 KB Output is correct
56 Correct 4 ms 1748 KB Output is correct
57 Correct 2 ms 1620 KB Output is correct
58 Correct 66 ms 3208 KB Output is correct
59 Correct 6 ms 1748 KB Output is correct
60 Correct 6 ms 1748 KB Output is correct
61 Correct 6 ms 1748 KB Output is correct
62 Correct 5 ms 1748 KB Output is correct
63 Correct 16 ms 2012 KB Output is correct
64 Correct 10 ms 1980 KB Output is correct
65 Correct 6 ms 1880 KB Output is correct
66 Correct 6 ms 1820 KB Output is correct
67 Correct 19 ms 2412 KB Output is correct
68 Correct 13 ms 1876 KB Output is correct
69 Correct 7 ms 1880 KB Output is correct
70 Correct 12 ms 2152 KB Output is correct
71 Correct 20 ms 2292 KB Output is correct
72 Correct 16 ms 2384 KB Output is correct
73 Correct 5 ms 1776 KB Output is correct
74 Correct 12 ms 2136 KB Output is correct
75 Correct 16 ms 2336 KB Output is correct
76 Correct 8 ms 2028 KB Output is correct
77 Correct 23 ms 2544 KB Output is correct
78 Correct 3 ms 1776 KB Output is correct
79 Correct 13 ms 2028 KB Output is correct
80 Correct 8 ms 2028 KB Output is correct
81 Correct 27 ms 2516 KB Output is correct
82 Correct 3 ms 1520 KB Output is correct
83 Correct 13 ms 2028 KB Output is correct
84 Correct 15 ms 2416 KB Output is correct
85 Correct 2 ms 1620 KB Output is correct
86 Correct 18 ms 2420 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 4 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1748 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 2 ms 1620 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1620 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 4 ms 1776 KB Output is correct
13 Correct 1 ms 1508 KB Output is correct
14 Correct 4 ms 1748 KB Output is correct
15 Correct 2 ms 1508 KB Output is correct
16 Correct 5 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 4 ms 1748 KB Output is correct
19 Correct 1 ms 1620 KB Output is correct
20 Correct 3 ms 1772 KB Output is correct
21 Correct 3 ms 1748 KB Output is correct
22 Correct 2 ms 1620 KB Output is correct
23 Correct 5 ms 1752 KB Output is correct
24 Correct 2 ms 1620 KB Output is correct
25 Correct 5 ms 1752 KB Output is correct
26 Correct 4 ms 1752 KB Output is correct
27 Correct 3 ms 1776 KB Output is correct
28 Correct 5 ms 1752 KB Output is correct
29 Correct 5 ms 1748 KB Output is correct
30 Correct 5 ms 1748 KB Output is correct
31 Correct 6 ms 1776 KB Output is correct
32 Correct 6 ms 1744 KB Output is correct
33 Correct 5 ms 1748 KB Output is correct
34 Correct 4 ms 1744 KB Output is correct
35 Correct 3 ms 1648 KB Output is correct
36 Correct 3 ms 1588 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 2 ms 1620 KB Output is correct
39 Correct 2 ms 1620 KB Output is correct
40 Correct 7 ms 1876 KB Output is correct
41 Correct 2 ms 1620 KB Output is correct
42 Correct 6 ms 1900 KB Output is correct
43 Correct 6 ms 1876 KB Output is correct
44 Correct 1 ms 1492 KB Output is correct
45 Correct 96 ms 7892 KB Output is correct
46 Correct 58 ms 4792 KB Output is correct
47 Correct 98 ms 7896 KB Output is correct
48 Correct 104 ms 7880 KB Output is correct
49 Correct 32 ms 4512 KB Output is correct
50 Correct 102 ms 8536 KB Output is correct
51 Correct 97 ms 7872 KB Output is correct
52 Correct 32 ms 4572 KB Output is correct
53 Correct 29 ms 4456 KB Output is correct
54 Correct 9 ms 2292 KB Output is correct
55 Correct 106 ms 8764 KB Output is correct
56 Correct 19 ms 4044 KB Output is correct
57 Correct 32 ms 4536 KB Output is correct
58 Correct 53 ms 4620 KB Output is correct
59 Correct 24 ms 4044 KB Output is correct
60 Correct 20 ms 4044 KB Output is correct
61 Correct 52 ms 4548 KB Output is correct
62 Correct 29 ms 4292 KB Output is correct
63 Correct 55 ms 5576 KB Output is correct
64 Correct 21 ms 4044 KB Output is correct
65 Correct 77 ms 6088 KB Output is correct
66 Correct 30 ms 4324 KB Output is correct
67 Correct 64 ms 5612 KB Output is correct
68 Correct 72 ms 5960 KB Output is correct
69 Correct 73 ms 6044 KB Output is correct
70 Correct 31 ms 4340 KB Output is correct
71 Correct 74 ms 5928 KB Output is correct
72 Correct 52 ms 5460 KB Output is correct
73 Correct 81 ms 6472 KB Output is correct
74 Correct 31 ms 4352 KB Output is correct
75 Correct 32 ms 3616 KB Output is correct
76 Correct 57 ms 5660 KB Output is correct
77 Correct 83 ms 6288 KB Output is correct
78 Correct 37 ms 3920 KB Output is correct
79 Correct 30 ms 3528 KB Output is correct
80 Correct 15 ms 2572 KB Output is correct
81 Correct 49 ms 3948 KB Output is correct
82 Correct 56 ms 5516 KB Output is correct
83 Correct 18 ms 2548 KB Output is correct
84 Correct 74 ms 5444 KB Output is correct