oj.uz

답안 #789351

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
789351 2023-07-21T09:40:40 Z peijar Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 328 ms 112256 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

string to_string(string s) { return s; }
template <typename T> string to_string(T v) {
  bool first = true;
  string res = "[";
  for (const auto &x : v) {
    if (!first)
      res += ", ";
    first = false;
    res += to_string(x);
  }
  res += "]";
  return res;
}

void dbg_out() { cout << endl; }
template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) {
  cout << ' ' << to_string(H);
  dbg_out(T...);
}

#ifdef DEBUG
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

const int MAXN = 2e5;

vector<int> childs[MAXN];
int par[MAXN];
int health[MAXN];
int cost[MAXN];
bool inCycle[MAXN];
vector<vector<int>> cycles;
int sz[MAXN];
int sumCost[MAXN];
map<int, int> deltas[MAXN];

void solve(int u) {
  sumCost[u] = cost[u];
  for (int v : childs[u])
    if (!inCycle[v]) {
      solve(v);
      sz[u] += sz[v];
      sumCost[u] += sumCost[v];
      if (deltas[u].size() < deltas[v].size())
        deltas[u].swap(deltas[v]);
      for (auto [x, d] : deltas[v])
        deltas[u][x] += d;
    }

  deltas[u][health[u]] += cost[u];

  int toRem = cost[u];
  while (toRem > 0) {
    auto it = deltas[u].lower_bound(health[u]);
    if (it == deltas[u].begin())
      break;
    --it;
    int rem = min(toRem, it->second);
    toRem -= rem;
    it->second -= rem;
    if (it->second == 0)
      deltas[u].erase(it);
  }
}

signed main(void) {
  ios_base::sync_with_stdio(false);
  cin.tie(0);

  int nbPersonnes;
  cin >> nbPersonnes;
  vector<int> values;
  for (int i = 0; i < nbPersonnes; ++i) {
    cin >> par[i] >> health[i] >> cost[i];
    --par[i];
    childs[par[i]].push_back(i);
    values.push_back(health[i]);
  }
  sort(values.begin(), values.end());
  values.resize(unique(values.begin(), values.end()) - values.begin());
  for (int i = 0; i < nbPersonnes; ++i) {
    health[i] =
        lower_bound(values.begin(), values.end(), health[i]) - values.begin();
  }

  vector<int> visited(nbPersonnes, 0);

  for (int u = 0; u < nbPersonnes; ++u)
    if (not visited[u]) {
      vector<int> stk;
      int v = u;
      while (!visited[v]) {
        stk.push_back(v);
        visited[v] = 1;
        v = par[v];
      }
      if (visited[v] == 1) {
        vector<int> c;
        while (stk.back() != v) {
          c.push_back(stk.back());
          stk.pop_back();
        }
        c.push_back(stk.back());
        stk.pop_back();
        cycles.push_back(c);
        for (int x : c)
          inCycle[x] = true, visited[x] = 2;
      }
      for (int x : stk)
        visited[x] = 2;
    }
  dbg(cycles);

  int sol = 0;
  for (auto cyc : cycles) {
    for (int root : cyc)
      solve(root);
    int tailleCycle = cyc.size();
    for (int root : cyc)
      for (auto it = deltas[root].rbegin(); it != deltas[root].rend(); ++it)
        if (it != deltas[root].rbegin())
          it->second += prev(it)->second;
    int cur = 0;
    for (int root : cyc) {
      cur += sumCost[root];
      cur -= deltas[root].begin()->second;
    }
    sol += cur;
  }
  cout << sol << endl;
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:124:9: warning: unused variable 'tailleCycle' [-Wunused-variable]
  124 |     int tailleCycle = cyc.size();
      |         ^~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14384 KB Output is correct
2 Correct 6 ms 14420 KB Output is correct
3 Correct 7 ms 14444 KB Output is correct
4 Correct 7 ms 14428 KB Output is correct
5 Correct 15 ms 15852 KB Output is correct
6 Correct 11 ms 15464 KB Output is correct
7 Correct 9 ms 15256 KB Output is correct
8 Correct 11 ms 15956 KB Output is correct
9 Correct 10 ms 15460 KB Output is correct
10 Correct 9 ms 15188 KB Output is correct
11 Correct 10 ms 15092 KB Output is correct
12 Correct 10 ms 15720 KB Output is correct
13 Correct 9 ms 15764 KB Output is correct
14 Correct 11 ms 15336 KB Output is correct
15 Correct 11 ms 15444 KB Output is correct
16 Correct 11 ms 16208 KB Output is correct
17 Correct 12 ms 15592 KB Output is correct
18 Correct 8 ms 14956 KB Output is correct
19 Correct 10 ms 15572 KB Output is correct
20 Correct 10 ms 15348 KB Output is correct
21 Correct 8 ms 15444 KB Output is correct
22 Correct 10 ms 15444 KB Output is correct
23 Correct 8 ms 15136 KB Output is correct
24 Correct 10 ms 15596 KB Output is correct
25 Correct 9 ms 15460 KB Output is correct
26 Correct 8 ms 15700 KB Output is correct
27 Correct 10 ms 15572 KB Output is correct
28 Correct 9 ms 15664 KB Output is correct
29 Correct 10 ms 15828 KB Output is correct
30 Correct 10 ms 15716 KB Output is correct
31 Correct 10 ms 15848 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14384 KB Output is correct
2 Correct 6 ms 14420 KB Output is correct
3 Correct 7 ms 14444 KB Output is correct
4 Correct 7 ms 14428 KB Output is correct
5 Correct 15 ms 15852 KB Output is correct
6 Correct 11 ms 15464 KB Output is correct
7 Correct 9 ms 15256 KB Output is correct
8 Correct 11 ms 15956 KB Output is correct
9 Correct 10 ms 15460 KB Output is correct
10 Correct 9 ms 15188 KB Output is correct
11 Correct 10 ms 15092 KB Output is correct
12 Correct 10 ms 15720 KB Output is correct
13 Correct 9 ms 15764 KB Output is correct
14 Correct 11 ms 15336 KB Output is correct
15 Correct 11 ms 15444 KB Output is correct
16 Correct 11 ms 16208 KB Output is correct
17 Correct 12 ms 15592 KB Output is correct
18 Correct 8 ms 14956 KB Output is correct
19 Correct 10 ms 15572 KB Output is correct
20 Correct 10 ms 15348 KB Output is correct
21 Correct 8 ms 15444 KB Output is correct
22 Correct 10 ms 15444 KB Output is correct
23 Correct 8 ms 15136 KB Output is correct
24 Correct 10 ms 15596 KB Output is correct
25 Correct 9 ms 15460 KB Output is correct
26 Correct 8 ms 15700 KB Output is correct
27 Correct 10 ms 15572 KB Output is correct
28 Correct 9 ms 15664 KB Output is correct
29 Correct 10 ms 15828 KB Output is correct
30 Correct 10 ms 15716 KB Output is correct
31 Correct 10 ms 15848 KB Output is correct
32 Correct 11 ms 15824 KB Output is correct
33 Correct 328 ms 88556 KB Output is correct
34 Correct 229 ms 63632 KB Output is correct
35 Correct 327 ms 85440 KB Output is correct
36 Correct 254 ms 63660 KB Output is correct
37 Correct 150 ms 44728 KB Output is correct
38 Correct 144 ms 40156 KB Output is correct
39 Correct 168 ms 68084 KB Output is correct
40 Correct 135 ms 68020 KB Output is correct
41 Correct 92 ms 68024 KB Output is correct
42 Correct 160 ms 52596 KB Output is correct
43 Correct 131 ms 52428 KB Output is correct
44 Correct 304 ms 112256 KB Output is correct
45 Correct 216 ms 76764 KB Output is correct
46 Correct 80 ms 38916 KB Output is correct
47 Correct 220 ms 61628 KB Output is correct
48 Correct 120 ms 54628 KB Output is correct
49 Correct 98 ms 54600 KB Output is correct
50 Correct 247 ms 54704 KB Output is correct
51 Correct 99 ms 42176 KB Output is correct
52 Correct 226 ms 62644 KB Output is correct
53 Correct 114 ms 55528 KB Output is correct
54 Correct 101 ms 68212 KB Output is correct
55 Correct 177 ms 63896 KB Output is correct
56 Correct 154 ms 70448 KB Output is correct
57 Correct 156 ms 73748 KB Output is correct
58 Correct 209 ms 70444 KB Output is correct
59 Correct 181 ms 70456 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14384 KB Output is correct
2 Correct 6 ms 14420 KB Output is correct
3 Correct 7 ms 14444 KB Output is correct
4 Correct 7 ms 14428 KB Output is correct
5 Correct 15 ms 15852 KB Output is correct
6 Correct 11 ms 15464 KB Output is correct
7 Correct 9 ms 15256 KB Output is correct
8 Correct 11 ms 15956 KB Output is correct
9 Correct 10 ms 15460 KB Output is correct
10 Correct 9 ms 15188 KB Output is correct
11 Correct 10 ms 15092 KB Output is correct
12 Correct 10 ms 15720 KB Output is correct
13 Correct 9 ms 15764 KB Output is correct
14 Correct 11 ms 15336 KB Output is correct
15 Correct 11 ms 15444 KB Output is correct
16 Correct 11 ms 16208 KB Output is correct
17 Correct 12 ms 15592 KB Output is correct
18 Correct 8 ms 14956 KB Output is correct
19 Correct 10 ms 15572 KB Output is correct
20 Correct 10 ms 15348 KB Output is correct
21 Correct 8 ms 15444 KB Output is correct
22 Correct 10 ms 15444 KB Output is correct
23 Correct 8 ms 15136 KB Output is correct
24 Correct 10 ms 15596 KB Output is correct
25 Correct 9 ms 15460 KB Output is correct
26 Correct 8 ms 15700 KB Output is correct
27 Correct 10 ms 15572 KB Output is correct
28 Correct 9 ms 15664 KB Output is correct
29 Correct 10 ms 15828 KB Output is correct
30 Correct 10 ms 15716 KB Output is correct
31 Correct 10 ms 15848 KB Output is correct
32 Correct 11 ms 15824 KB Output is correct
33 Correct 328 ms 88556 KB Output is correct
34 Correct 229 ms 63632 KB Output is correct
35 Correct 327 ms 85440 KB Output is correct
36 Correct 254 ms 63660 KB Output is correct
37 Correct 150 ms 44728 KB Output is correct
38 Correct 144 ms 40156 KB Output is correct
39 Correct 168 ms 68084 KB Output is correct
40 Correct 135 ms 68020 KB Output is correct
41 Correct 92 ms 68024 KB Output is correct
42 Correct 160 ms 52596 KB Output is correct
43 Correct 131 ms 52428 KB Output is correct
44 Correct 304 ms 112256 KB Output is correct
45 Correct 216 ms 76764 KB Output is correct
46 Correct 80 ms 38916 KB Output is correct
47 Correct 220 ms 61628 KB Output is correct
48 Correct 120 ms 54628 KB Output is correct
49 Correct 98 ms 54600 KB Output is correct
50 Correct 247 ms 54704 KB Output is correct
51 Correct 99 ms 42176 KB Output is correct
52 Correct 226 ms 62644 KB Output is correct
53 Correct 114 ms 55528 KB Output is correct
54 Correct 101 ms 68212 KB Output is correct
55 Correct 177 ms 63896 KB Output is correct
56 Correct 154 ms 70448 KB Output is correct
57 Correct 156 ms 73748 KB Output is correct
58 Correct 209 ms 70444 KB Output is correct
59 Correct 181 ms 70456 KB Output is correct
60 Incorrect 7 ms 14420 KB Output isn't correct
61 Halted 0 ms 0 KB -