oj.uz

답안 #1039980

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1039980 2024-07-31T13:21:26 Z juicy Worst Reporter 4 (JOI21_worst_reporter4) C++17
100 / 100
 214 ms 104720 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 nxt[N], a[N], c[N], lab[N], deg[N];
vector<int> g[N];
map<int, long long> mp[N];

void mrg(map<int, long long> &a, map<int, long long> &b) {
  if (a.size() < b.size()) {
    swap(a, b);
  }
  for (auto [x, y] : b) {
    a[x] += y;
  }
}

void opt(map<int, long long> &mp, int x, long long C) {
  mp[x] += C;
  for (auto it = mp.upper_bound(x); it != mp.end(); it = mp.erase(it)) {
    auto &delta = (*it).second;
    if (C < delta) {
      delta -= C;
      break;
    }
    C -= delta;
  }
}

void dfs(int u) {
  for (int v : g[u]) {
    dfs(v);
    mrg(mp[u], mp[v]);
  }
  opt(mp[u], a[u], c[u]);
}

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];
    g[p].push_back(i);
    nxt[i] = p, ++deg[p];
  }
  queue<int> q;
  for (int i = 1; i <= n; ++i) {
    if (!deg[i]) {
      q.push(i);
    }
  }
  while (q.size()) {
    int u = q.front(); q.pop();
    if (--deg[nxt[u]] == 0) {
      q.push(nxt[u]);
    }
  }
  for (int i = 1; i <= n; ++i) {
    if (deg[i]) {
      int j = i;
      vector<int> cands;
      do {
        cands.push_back(j);
        for (int v : g[j]) {
          if (!deg[v]) {
            dfs(v);
            mrg(mp[i], mp[v]);
          }
        }
        j = nxt[j];
      } while (j ^ i);
      sort(cands.begin(), cands.end(), [&](int u, int v) {
        return a[u] > a[v];
      });
      for (int it = 0; it < cands.size(); ) {
        int j = it;
        long long sum = 0;
        while (j < cands.size() && a[cands[j]] == a[cands[it]]) {
          deg[cands[j]] = 0;
          sum += c[cands[j++]];
        }
        opt(mp[i], a[cands[it]], sum);
        it = j;
      }
      for (auto [x, y] : mp[i]) {
        res -= y;
      }
    }
  }
  cout << res;
  return 0;
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:88:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |       for (int it = 0; it < cands.size(); ) {
      |                        ~~~^~~~~~~~~~~~~~
worst_reporter2.cpp:91:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |         while (j < cands.size() && a[cands[j]] == a[cands[it]]) {
      |                ~~^~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14428 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 11 ms 15628 KB Output is correct
6 Correct 8 ms 15216 KB Output is correct
7 Correct 7 ms 15080 KB Output is correct
8 Correct 10 ms 15708 KB Output is correct
9 Correct 7 ms 15196 KB Output is correct
10 Correct 9 ms 14996 KB Output is correct
11 Correct 6 ms 14940 KB Output is correct
12 Correct 7 ms 15196 KB Output is correct
13 Correct 8 ms 15196 KB Output is correct
14 Correct 7 ms 14968 KB Output is correct
15 Correct 6 ms 14940 KB Output is correct
16 Correct 8 ms 15984 KB Output is correct
17 Correct 8 ms 15452 KB Output is correct
18 Correct 6 ms 14940 KB Output is correct
19 Correct 7 ms 15080 KB Output is correct
20 Correct 7 ms 14936 KB Output is correct
21 Correct 6 ms 14936 KB Output is correct
22 Correct 8 ms 15292 KB Output is correct
23 Correct 7 ms 14940 KB Output is correct
24 Correct 10 ms 15328 KB Output is correct
25 Correct 7 ms 15112 KB Output is correct
26 Correct 10 ms 15196 KB Output is correct
27 Correct 8 ms 15196 KB Output is correct
28 Correct 7 ms 15336 KB Output is correct
29 Correct 7 ms 15196 KB Output is correct
30 Correct 7 ms 15340 KB Output is correct
31 Correct 7 ms 15344 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14428 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 11 ms 15628 KB Output is correct
6 Correct 8 ms 15216 KB Output is correct
7 Correct 7 ms 15080 KB Output is correct
8 Correct 10 ms 15708 KB Output is correct
9 Correct 7 ms 15196 KB Output is correct
10 Correct 9 ms 14996 KB Output is correct
11 Correct 6 ms 14940 KB Output is correct
12 Correct 7 ms 15196 KB Output is correct
13 Correct 8 ms 15196 KB Output is correct
14 Correct 7 ms 14968 KB Output is correct
15 Correct 6 ms 14940 KB Output is correct
16 Correct 8 ms 15984 KB Output is correct
17 Correct 8 ms 15452 KB Output is correct
18 Correct 6 ms 14940 KB Output is correct
19 Correct 7 ms 15080 KB Output is correct
20 Correct 7 ms 14936 KB Output is correct
21 Correct 6 ms 14936 KB Output is correct
22 Correct 8 ms 15292 KB Output is correct
23 Correct 7 ms 14940 KB Output is correct
24 Correct 10 ms 15328 KB Output is correct
25 Correct 7 ms 15112 KB Output is correct
26 Correct 10 ms 15196 KB Output is correct
27 Correct 8 ms 15196 KB Output is correct
28 Correct 7 ms 15336 KB Output is correct
29 Correct 7 ms 15196 KB Output is correct
30 Correct 7 ms 15340 KB Output is correct
31 Correct 7 ms 15344 KB Output is correct
32 Correct 8 ms 15708 KB Output is correct
33 Correct 209 ms 80144 KB Output is correct
34 Correct 154 ms 55428 KB Output is correct
35 Correct 205 ms 77140 KB Output is correct
36 Correct 187 ms 55436 KB Output is correct
37 Correct 95 ms 36436 KB Output is correct
38 Correct 109 ms 31884 KB Output is correct
39 Correct 81 ms 41456 KB Output is correct
40 Correct 77 ms 41368 KB Output is correct
41 Correct 62 ms 41424 KB Output is correct
42 Correct 88 ms 35240 KB Output is correct
43 Correct 73 ms 35276 KB Output is correct
44 Correct 214 ms 104720 KB Output is correct
45 Correct 141 ms 69200 KB Output is correct
46 Correct 54 ms 31652 KB Output is correct
47 Correct 126 ms 44848 KB Output is correct
48 Correct 70 ms 37976 KB Output is correct
49 Correct 73 ms 37972 KB Output is correct
50 Correct 181 ms 46792 KB Output is correct
51 Correct 57 ms 34508 KB Output is correct
52 Correct 132 ms 45436 KB Output is correct
53 Correct 88 ms 38344 KB Output is correct
54 Correct 61 ms 41552 KB Output is correct
55 Correct 104 ms 46368 KB Output is correct
56 Correct 104 ms 48468 KB Output is correct
57 Correct 84 ms 50116 KB Output is correct
58 Correct 95 ms 53384 KB Output is correct
59 Correct 93 ms 53332 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14428 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 11 ms 15628 KB Output is correct
6 Correct 8 ms 15216 KB Output is correct
7 Correct 7 ms 15080 KB Output is correct
8 Correct 10 ms 15708 KB Output is correct
9 Correct 7 ms 15196 KB Output is correct
10 Correct 9 ms 14996 KB Output is correct
11 Correct 6 ms 14940 KB Output is correct
12 Correct 7 ms 15196 KB Output is correct
13 Correct 8 ms 15196 KB Output is correct
14 Correct 7 ms 14968 KB Output is correct
15 Correct 6 ms 14940 KB Output is correct
16 Correct 8 ms 15984 KB Output is correct
17 Correct 8 ms 15452 KB Output is correct
18 Correct 6 ms 14940 KB Output is correct
19 Correct 7 ms 15080 KB Output is correct
20 Correct 7 ms 14936 KB Output is correct
21 Correct 6 ms 14936 KB Output is correct
22 Correct 8 ms 15292 KB Output is correct
23 Correct 7 ms 14940 KB Output is correct
24 Correct 10 ms 15328 KB Output is correct
25 Correct 7 ms 15112 KB Output is correct
26 Correct 10 ms 15196 KB Output is correct
27 Correct 8 ms 15196 KB Output is correct
28 Correct 7 ms 15336 KB Output is correct
29 Correct 7 ms 15196 KB Output is correct
30 Correct 7 ms 15340 KB Output is correct
31 Correct 7 ms 15344 KB Output is correct
32 Correct 8 ms 15708 KB Output is correct
33 Correct 209 ms 80144 KB Output is correct
34 Correct 154 ms 55428 KB Output is correct
35 Correct 205 ms 77140 KB Output is correct
36 Correct 187 ms 55436 KB Output is correct
37 Correct 95 ms 36436 KB Output is correct
38 Correct 109 ms 31884 KB Output is correct
39 Correct 81 ms 41456 KB Output is correct
40 Correct 77 ms 41368 KB Output is correct
41 Correct 62 ms 41424 KB Output is correct
42 Correct 88 ms 35240 KB Output is correct
43 Correct 73 ms 35276 KB Output is correct
44 Correct 214 ms 104720 KB Output is correct
45 Correct 141 ms 69200 KB Output is correct
46 Correct 54 ms 31652 KB Output is correct
47 Correct 126 ms 44848 KB Output is correct
48 Correct 70 ms 37976 KB Output is correct
49 Correct 73 ms 37972 KB Output is correct
50 Correct 181 ms 46792 KB Output is correct
51 Correct 57 ms 34508 KB Output is correct
52 Correct 132 ms 45436 KB Output is correct
53 Correct 88 ms 38344 KB Output is correct
54 Correct 61 ms 41552 KB Output is correct
55 Correct 104 ms 46368 KB Output is correct
56 Correct 104 ms 48468 KB Output is correct
57 Correct 84 ms 50116 KB Output is correct
58 Correct 95 ms 53384 KB Output is correct
59 Correct 93 ms 53332 KB Output is correct
60 Correct 5 ms 14428 KB Output is correct
61 Correct 5 ms 14428 KB Output is correct
62 Correct 4 ms 14424 KB Output is correct
63 Correct 6 ms 14424 KB Output is correct
64 Correct 201 ms 65200 KB Output is correct
65 Correct 156 ms 48464 KB Output is correct
66 Correct 184 ms 64596 KB Output is correct
67 Correct 165 ms 48468 KB Output is correct
68 Correct 100 ms 34588 KB Output is correct
69 Correct 87 ms 31316 KB Output is correct
70 Correct 86 ms 30132 KB Output is correct
71 Correct 97 ms 29728 KB Output is correct
72 Correct 86 ms 30208 KB Output is correct
73 Correct 80 ms 30236 KB Output is correct
74 Correct 180 ms 40232 KB Output is correct
75 Correct 110 ms 32552 KB Output is correct
76 Correct 87 ms 32512 KB Output is correct
77 Correct 120 ms 40648 KB Output is correct
78 Correct 73 ms 33228 KB Output is correct
79 Correct 157 ms 56060 KB Output is correct
80 Correct 118 ms 43984 KB Output is correct
81 Correct 110 ms 33504 KB Output is correct
82 Correct 79 ms 30412 KB Output is correct
83 Correct 59 ms 41512 KB Output is correct
84 Correct 123 ms 39880 KB Output is correct
85 Correct 117 ms 39884 KB Output is correct
86 Correct 121 ms 40052 KB Output is correct
87 Correct 120 ms 39880 KB Output is correct
88 Correct 124 ms 39876 KB Output is correct