oj.uz

Submission #646795

# Submission time Handle Problem Language Result Execution time Memory
646795 2022-09-30T17:06:04 Z tvladm2009 Bitaro’s Party (JOI18_bitaro) C++14
14 / 100
 818 ms 110856 KB 
#include <bits/stdc++.h>

using ll = long long;

int const nmax = 100000;

int dp[1 + nmax], c[1 + nmax];
std::vector<int> g[1 + nmax];
std::vector<std::pair<int, int>> sol[1 + nmax];
bool viz[1 + nmax], b[1 + nmax];

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

  int n, m, q;
  std::cin >> n >> m >> q;
  for(int i = 1;i <= m; i++) {
    int u, v;
    std::cin >> u >> v;
    g[u].push_back(v);
  }

  for(int i = 1;i <= n; i++)
    sol[i].push_back({0, i});
  for(int u = 1;u <= n; u++) {
    std::sort(sol[u].rbegin(), sol[u].rend());
    for(auto p : sol[u])
      viz[p.second] = false;
    std::vector<std::pair<int, int>> aux;
    for(auto v : sol[u]) {
      if(aux.size() >= 120)
        break;
      if(!viz[v.second]) {
        aux.push_back(v);
        viz[v.second] = 1;
      }
    }
    std::swap(sol[u], aux);

    for(int v : g[u]) {
      for(auto p : sol[u]) {
        if(sol[v].size() < 120) 
          sol[v].push_back({p.first + 1, p.second});
      }
    }
  }

  while(q--) {
    int to, y;
    std::cin >> to >> y;
    for(int i = 1;i <= y; i++) {
      int v;
      std::cin >> v;
      c[i] = v;
      b[v] = true;
    }

    if(y >= 120) {
      for(int i = 1;i <= n; i++) {
        if(b[i])
          dp[i] = -1;
        else
          dp[i] = 0;
      }
      for(int i = 1;i <= n; i++) {
        if(dp[i] == -1)
          continue;
        for(int u : g[i])
          dp[u] = std::max(dp[u], dp[i] + 1);
      }
      std::cout << dp[to] << "\n";
    } else {
      int ans = -1;
      for(auto p : sol[to]) {
        if(!b[p.second])
          ans = std::max(ans, p.first);
      }
      std::cout << ans << "\n";
    }

    for(int i = 1;i <= y; i++)
      b[c[i]] = false;
  }
  return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 6 ms 5460 KB Output is correct
6 Correct 6 ms 5460 KB Output is correct
7 Correct 6 ms 5460 KB Output is correct
8 Correct 8 ms 5976 KB Output is correct
9 Correct 8 ms 5936 KB Output is correct
10 Correct 8 ms 5972 KB Output is correct
11 Correct 9 ms 5972 KB Output is correct
12 Correct 8 ms 5844 KB Output is correct
13 Correct 10 ms 5972 KB Output is correct
14 Correct 7 ms 5716 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 7 ms 5588 KB Output is correct
17 Correct 9 ms 5716 KB Output is correct
18 Correct 8 ms 5588 KB Output is correct
19 Correct 8 ms 5716 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 6 ms 5460 KB Output is correct
6 Correct 6 ms 5460 KB Output is correct
7 Correct 6 ms 5460 KB Output is correct
8 Correct 8 ms 5976 KB Output is correct
9 Correct 8 ms 5936 KB Output is correct
10 Correct 8 ms 5972 KB Output is correct
11 Correct 9 ms 5972 KB Output is correct
12 Correct 8 ms 5844 KB Output is correct
13 Correct 10 ms 5972 KB Output is correct
14 Correct 7 ms 5716 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 7 ms 5588 KB Output is correct
17 Correct 9 ms 5716 KB Output is correct
18 Correct 8 ms 5588 KB Output is correct
19 Correct 8 ms 5716 KB Output is correct
20 Correct 40 ms 7260 KB Output is correct
21 Correct 36 ms 7296 KB Output is correct
22 Correct 36 ms 7272 KB Output is correct
23 Correct 39 ms 7244 KB Output is correct
24 Correct 658 ms 88480 KB Output is correct
25 Correct 667 ms 89632 KB Output is correct
26 Correct 697 ms 89580 KB Output is correct
27 Correct 678 ms 110704 KB Output is correct
28 Correct 647 ms 110856 KB Output is correct
29 Correct 656 ms 110804 KB Output is correct
30 Correct 740 ms 110244 KB Output is correct
31 Correct 818 ms 109632 KB Output is correct
32 Correct 696 ms 110148 KB Output is correct
33 Correct 519 ms 75152 KB Output is correct
34 Correct 533 ms 68200 KB Output is correct
35 Correct 528 ms 74732 KB Output is correct
36 Correct 664 ms 94256 KB Output is correct
37 Correct 686 ms 90172 KB Output is correct
38 Correct 644 ms 94420 KB Output is correct

Subtask #3
0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 6 ms 5460 KB Output is correct
6 Correct 6 ms 5460 KB Output is correct
7 Correct 6 ms 5460 KB Output is correct
8 Correct 8 ms 5976 KB Output is correct
9 Correct 8 ms 5936 KB Output is correct
10 Correct 8 ms 5972 KB Output is correct
11 Correct 9 ms 5972 KB Output is correct
12 Correct 8 ms 5844 KB Output is correct
13 Correct 10 ms 5972 KB Output is correct
14 Correct 7 ms 5716 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 7 ms 5588 KB Output is correct
17 Correct 9 ms 5716 KB Output is correct
18 Correct 8 ms 5588 KB Output is correct
19 Correct 8 ms 5716 KB Output is correct
20 Correct 40 ms 7260 KB Output is correct
21 Correct 36 ms 7296 KB Output is correct
22 Correct 36 ms 7272 KB Output is correct
23 Correct 39 ms 7244 KB Output is correct
24 Correct 658 ms 88480 KB Output is correct
25 Correct 667 ms 89632 KB Output is correct
26 Correct 697 ms 89580 KB Output is correct
27 Correct 678 ms 110704 KB Output is correct
28 Correct 647 ms 110856 KB Output is correct
29 Correct 656 ms 110804 KB Output is correct
30 Correct 740 ms 110244 KB Output is correct
31 Correct 818 ms 109632 KB Output is correct
32 Correct 696 ms 110148 KB Output is correct
33 Correct 519 ms 75152 KB Output is correct
34 Correct 533 ms 68200 KB Output is correct
35 Correct 528 ms 74732 KB Output is correct
36 Correct 664 ms 94256 KB Output is correct
37 Correct 686 ms 90172 KB Output is correct
38 Correct 644 ms 94420 KB Output is correct
39 Incorrect 718 ms 88612 KB Output isn't correct
40 Halted 0 ms 0 KB -