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Submission #1039919

# Submission time Handle Problem Language Result Execution time Memory
1039919 2024-07-31T12:27:02 Z juicy Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 233 ms 113920 KB 
#include <bits/stdc++.h>

using namespace std;

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

const int N = 2e5 + 5;

int n;
int a[N], c[N], lab[N], deg[N];
bool vis[N];
vector<int> g[N], gph[N];
map<int, long long> mp[N];

void dfs(int u) {
  for (int v : g[u]) {
    dfs(v);
    if (mp[u].size() < mp[v].size()) {
      mp[u].swap(mp[v]);
    }
    for (auto [x, y] : mp[v]) {
      mp[u][x] += y;
    }
  }
  if (a[u] != -1) {
    mp[u][a[u]] += c[u];
    for (auto it = mp[u].upper_bound(a[u]); it != mp[u].end(); it = mp[u].erase(it)) {
      auto &delta = (*it).second;
      if (c[u] < delta) {
        delta -= c[u];
        break;
      }
      c[u] -= delta;
    }
  }
}

vector<int> st, ver;

void DFS(int u) {
  ver.push_back(u);
  vis[u] = 1;
  st.push_back(u);
  for (int v : gph[u]) {
    if (vis[v]) {
      while (1) {
        int x = st.back(); st.pop_back();
        lab[x] = u;
        if (u != x) {
          c[u] += c[x];
        }
        if (a[x] != a[u]) {
          a[u] = -1;
        }
        if (x == v) {
          break;
        }
      }
    } else {
      DFS(v);
    }
  }
  if (lab[u] == -1) {
    st.pop_back();
  }
}

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

  cin >> n;
  long long res = 0;
  for (int i = 1; i <= n; ++i) {
    int p; cin >> p >> a[i] >> c[i];
    a[i] = 1e9 - a[i] + 1;
    res += c[i];
    gph[p].push_back(i);
  }
  fill(lab + 1, lab + n + 1, -1);
  for (int i = 1; i <= n; ++i) {
    if (!vis[i]) {
      DFS(i);
      for (int u : ver) {
        for (int v : gph[u]) {
          if (lab[v] == -1) {
            g[u].push_back(v);
            ++deg[v];
          }
        }
      }
      for (int u : ver) {
        if ((lab[u] == -1 || lab[u] == u) && !deg[u]) {
          dfs(u);
          for (auto [x, y] : mp[u]) {
            res -= y;
          }
        }
      }
      ver.clear();
    }
  }
  cout << res;
  return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 21080 KB Output is correct
2 Correct 4 ms 21084 KB Output is correct
3 Correct 4 ms 21152 KB Output is correct
4 Correct 5 ms 21084 KB Output is correct
5 Correct 9 ms 22456 KB Output is correct
6 Correct 7 ms 21924 KB Output is correct
7 Correct 7 ms 21696 KB Output is correct
8 Correct 8 ms 22312 KB Output is correct
9 Correct 7 ms 21848 KB Output is correct
10 Correct 8 ms 21592 KB Output is correct
11 Correct 6 ms 21640 KB Output is correct
12 Correct 8 ms 22316 KB Output is correct
13 Correct 6 ms 22364 KB Output is correct
14 Correct 6 ms 21984 KB Output is correct
15 Correct 7 ms 21848 KB Output is correct
16 Correct 8 ms 22620 KB Output is correct
17 Correct 7 ms 22108 KB Output is correct
18 Correct 5 ms 21540 KB Output is correct
19 Correct 6 ms 22108 KB Output is correct
20 Correct 6 ms 21852 KB Output is correct
21 Correct 6 ms 21852 KB Output is correct
22 Correct 6 ms 21852 KB Output is correct
23 Correct 6 ms 21596 KB Output is correct
24 Correct 7 ms 22108 KB Output is correct
25 Correct 6 ms 22008 KB Output is correct
26 Correct 7 ms 22364 KB Output is correct
27 Correct 7 ms 22108 KB Output is correct
28 Correct 7 ms 22088 KB Output is correct
29 Correct 6 ms 22448 KB Output is correct
30 Correct 6 ms 22324 KB Output is correct
31 Correct 7 ms 22464 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 21080 KB Output is correct
2 Correct 4 ms 21084 KB Output is correct
3 Correct 4 ms 21152 KB Output is correct
4 Correct 5 ms 21084 KB Output is correct
5 Correct 9 ms 22456 KB Output is correct
6 Correct 7 ms 21924 KB Output is correct
7 Correct 7 ms 21696 KB Output is correct
8 Correct 8 ms 22312 KB Output is correct
9 Correct 7 ms 21848 KB Output is correct
10 Correct 8 ms 21592 KB Output is correct
11 Correct 6 ms 21640 KB Output is correct
12 Correct 8 ms 22316 KB Output is correct
13 Correct 6 ms 22364 KB Output is correct
14 Correct 6 ms 21984 KB Output is correct
15 Correct 7 ms 21848 KB Output is correct
16 Correct 8 ms 22620 KB Output is correct
17 Correct 7 ms 22108 KB Output is correct
18 Correct 5 ms 21540 KB Output is correct
19 Correct 6 ms 22108 KB Output is correct
20 Correct 6 ms 21852 KB Output is correct
21 Correct 6 ms 21852 KB Output is correct
22 Correct 6 ms 21852 KB Output is correct
23 Correct 6 ms 21596 KB Output is correct
24 Correct 7 ms 22108 KB Output is correct
25 Correct 6 ms 22008 KB Output is correct
26 Correct 7 ms 22364 KB Output is correct
27 Correct 7 ms 22108 KB Output is correct
28 Correct 7 ms 22088 KB Output is correct
29 Correct 6 ms 22448 KB Output is correct
30 Correct 6 ms 22324 KB Output is correct
31 Correct 7 ms 22464 KB Output is correct
32 Correct 12 ms 22364 KB Output is correct
33 Correct 229 ms 89036 KB Output is correct
34 Correct 178 ms 64200 KB Output is correct
35 Correct 233 ms 86212 KB Output is correct
36 Correct 166 ms 64180 KB Output is correct
37 Correct 105 ms 45220 KB Output is correct
38 Correct 95 ms 40832 KB Output is correct
39 Correct 96 ms 70000 KB Output is correct
40 Correct 90 ms 69956 KB Output is correct
41 Correct 82 ms 69892 KB Output is correct
42 Correct 90 ms 55408 KB Output is correct
43 Correct 103 ms 55408 KB Output is correct
44 Correct 226 ms 113920 KB Output is correct
45 Correct 146 ms 78280 KB Output is correct
46 Correct 61 ms 40900 KB Output is correct
47 Correct 165 ms 62100 KB Output is correct
48 Correct 78 ms 55408 KB Output is correct
49 Correct 76 ms 55232 KB Output is correct
50 Correct 184 ms 54132 KB Output is correct
51 Correct 82 ms 41648 KB Output is correct
52 Correct 133 ms 63432 KB Output is correct
53 Correct 78 ms 56264 KB Output is correct
54 Correct 75 ms 69988 KB Output is correct
55 Correct 152 ms 63784 KB Output is correct
56 Correct 124 ms 71532 KB Output is correct
57 Correct 134 ms 75192 KB Output is correct
58 Correct 125 ms 73364 KB Output is correct
59 Correct 136 ms 73408 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 21080 KB Output is correct
2 Correct 4 ms 21084 KB Output is correct
3 Correct 4 ms 21152 KB Output is correct
4 Correct 5 ms 21084 KB Output is correct
5 Correct 9 ms 22456 KB Output is correct
6 Correct 7 ms 21924 KB Output is correct
7 Correct 7 ms 21696 KB Output is correct
8 Correct 8 ms 22312 KB Output is correct
9 Correct 7 ms 21848 KB Output is correct
10 Correct 8 ms 21592 KB Output is correct
11 Correct 6 ms 21640 KB Output is correct
12 Correct 8 ms 22316 KB Output is correct
13 Correct 6 ms 22364 KB Output is correct
14 Correct 6 ms 21984 KB Output is correct
15 Correct 7 ms 21848 KB Output is correct
16 Correct 8 ms 22620 KB Output is correct
17 Correct 7 ms 22108 KB Output is correct
18 Correct 5 ms 21540 KB Output is correct
19 Correct 6 ms 22108 KB Output is correct
20 Correct 6 ms 21852 KB Output is correct
21 Correct 6 ms 21852 KB Output is correct
22 Correct 6 ms 21852 KB Output is correct
23 Correct 6 ms 21596 KB Output is correct
24 Correct 7 ms 22108 KB Output is correct
25 Correct 6 ms 22008 KB Output is correct
26 Correct 7 ms 22364 KB Output is correct
27 Correct 7 ms 22108 KB Output is correct
28 Correct 7 ms 22088 KB Output is correct
29 Correct 6 ms 22448 KB Output is correct
30 Correct 6 ms 22324 KB Output is correct
31 Correct 7 ms 22464 KB Output is correct
32 Correct 12 ms 22364 KB Output is correct
33 Correct 229 ms 89036 KB Output is correct
34 Correct 178 ms 64200 KB Output is correct
35 Correct 233 ms 86212 KB Output is correct
36 Correct 166 ms 64180 KB Output is correct
37 Correct 105 ms 45220 KB Output is correct
38 Correct 95 ms 40832 KB Output is correct
39 Correct 96 ms 70000 KB Output is correct
40 Correct 90 ms 69956 KB Output is correct
41 Correct 82 ms 69892 KB Output is correct
42 Correct 90 ms 55408 KB Output is correct
43 Correct 103 ms 55408 KB Output is correct
44 Correct 226 ms 113920 KB Output is correct
45 Correct 146 ms 78280 KB Output is correct
46 Correct 61 ms 40900 KB Output is correct
47 Correct 165 ms 62100 KB Output is correct
48 Correct 78 ms 55408 KB Output is correct
49 Correct 76 ms 55232 KB Output is correct
50 Correct 184 ms 54132 KB Output is correct
51 Correct 82 ms 41648 KB Output is correct
52 Correct 133 ms 63432 KB Output is correct
53 Correct 78 ms 56264 KB Output is correct
54 Correct 75 ms 69988 KB Output is correct
55 Correct 152 ms 63784 KB Output is correct
56 Correct 124 ms 71532 KB Output is correct
57 Correct 134 ms 75192 KB Output is correct
58 Correct 125 ms 73364 KB Output is correct
59 Correct 136 ms 73408 KB Output is correct
60 Incorrect 8 ms 21084 KB Output isn't correct
61 Halted 0 ms 0 KB -