oj.uz

답안 #884790

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
884790 2023-12-08T12:19:18 Z MilosMilutinovic Worst Reporter 4 (JOI21_worst_reporter4) C++14
79 / 100
 300 ms 105836 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<int> a(n);
  vector<int> h(n);
  vector<int> c(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> h[i] >> c[i];
    --a[i];
  }
  vector<vector<int>> g(n);
  vector<int> deg(n);
  for (int i = 0; i < n; i++) {
    if (a[i] != i) {
      g[a[i]].push_back(i);
    }
    deg[a[i]] += 1;
  }
  vector<int> que;
  for (int i = 0; i < n; i++) {
    if (deg[i] == 0) {
      que.push_back(i);
    }
  }
  vector<set<pair<int, long long>>> st(n);
  for (int b = 0; b < (int) que.size(); b++) {
    int i = que[b];
    deg[a[i]] -= 1;
    if (deg[a[i]] == 0) {
      que.push_back(a[i]);
    }
  }
  for (int b = 0; b < (int) que.size(); b++) {
    int i = que[b];
    int ch = -1;
    for (int j : g[i]) {
      if (ch == -1 || (int) st[ch].size() < st[j].size()) {
        ch = j;
      }
    }
    if (ch != -1) {
      st[i].swap(st[ch]);
    }
    for (int j : g[i]) {
      if (j == ch) {
        continue;
      }
      for (auto& x : st[j]) {
        int pos = x.first;
        long long val = x.second; 
        auto it = st[i].lower_bound({pos, -1LL});
        if (it != st[i].end() && it->first == pos) {
          long long old_v = it->second;
          st[i].erase(it);
          st[i].emplace(pos, old_v + val);
        } else {
          st[i].insert(x);
        }
      }
    }
    long long ft = 0;
    while (true) {
      auto it = st[i].lower_bound({h[i], -1LL});
      if (it == st[i].begin()) {
        break;
      }
      it = prev(it);
      if (it->second + ft <= c[i]) {
        ft += it->second;
        st[i].erase(it);
      } else {
        int pos = it->first;
        long long val = it->second;
        st[i].erase(it);
        st[i].emplace(pos, val + ft - c[i]);
        break;
      }
    }
    auto it = st[i].lower_bound({h[i], -1LL});
    if (it != st[i].end() && it->first == h[i]) {
      long long val = it->second;
      st[i].erase(it);
      st[i].emplace(h[i], val + c[i]);
    } else {
      st[i].emplace(h[i], c[i]);
    }
  }
  long long sum = accumulate(c.begin(), c.end(), 0LL);
  for (int ver = 0; ver < n; ver++) {
    if (deg[ver] == 0) {
      continue;
    }
    vector<int> cyc;
    int x = ver;
    while (true) {
      cyc.push_back(x);
      x = a[x];
      if (x == ver) {
        break;
      }
    }
    vector<int> ch;
    for (int i : cyc) {
      for (int j : g[i]) {
        if (deg[j] == 0) {
          ch.push_back(j);
        }
      }
    }
    vector<pair<int, long long>> dp;
    for (int i : ch) {
      for (auto& p : st[i]) {
        dp.push_back(p);
      }
    }
    sort(dp.rbegin(), dp.rbegin());
    map<int, long long> mp;
    vector<int> f(1, -1);
    for (int i : cyc) {
      mp[h[i]] += c[i];
      f.push_back(h[i]);
    }
    sort(f.rbegin(), f.rend());
    int ptr = 0;
    long long ft = 0, mx = 0;
    for (int v : f) {
      while (ptr < (int) dp.size() && dp[ptr].first >= v) {
        ft += dp[ptr].second;
        ptr += 1;
      }
      mx = max(mx, ft + mp[v]);
    }
    sum -= mx;
    for (int i : cyc) {
      deg[i] = 0;
    }
  }
  cout << sum << '\n';
  return 0;
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:43:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::set<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |       if (ch == -1 || (int) st[ch].size() < st[j].size()) {
      |                       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 6 ms 1912 KB Output is correct
6 Correct 4 ms 1628 KB Output is correct
7 Correct 3 ms 1372 KB Output is correct
8 Correct 5 ms 2140 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 2 ms 1148 KB Output is correct
12 Correct 3 ms 1116 KB Output is correct
13 Correct 3 ms 1116 KB Output is correct
14 Correct 4 ms 1116 KB Output is correct
15 Correct 3 ms 1268 KB Output is correct
16 Correct 6 ms 2376 KB Output is correct
17 Correct 4 ms 1628 KB Output is correct
18 Correct 2 ms 1116 KB Output is correct
19 Correct 4 ms 1372 KB Output is correct
20 Correct 3 ms 1368 KB Output is correct
21 Correct 2 ms 1140 KB Output is correct
22 Correct 2 ms 1372 KB Output is correct
23 Correct 2 ms 1392 KB Output is correct
24 Correct 4 ms 1372 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 2 ms 1116 KB Output is correct
27 Correct 3 ms 1648 KB Output is correct
28 Correct 3 ms 1372 KB Output is correct
29 Correct 3 ms 1372 KB Output is correct
30 Correct 5 ms 1624 KB Output is correct
31 Correct 3 ms 1628 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 6 ms 1912 KB Output is correct
6 Correct 4 ms 1628 KB Output is correct
7 Correct 3 ms 1372 KB Output is correct
8 Correct 5 ms 2140 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 2 ms 1148 KB Output is correct
12 Correct 3 ms 1116 KB Output is correct
13 Correct 3 ms 1116 KB Output is correct
14 Correct 4 ms 1116 KB Output is correct
15 Correct 3 ms 1268 KB Output is correct
16 Correct 6 ms 2376 KB Output is correct
17 Correct 4 ms 1628 KB Output is correct
18 Correct 2 ms 1116 KB Output is correct
19 Correct 4 ms 1372 KB Output is correct
20 Correct 3 ms 1368 KB Output is correct
21 Correct 2 ms 1140 KB Output is correct
22 Correct 2 ms 1372 KB Output is correct
23 Correct 2 ms 1392 KB Output is correct
24 Correct 4 ms 1372 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 2 ms 1116 KB Output is correct
27 Correct 3 ms 1648 KB Output is correct
28 Correct 3 ms 1372 KB Output is correct
29 Correct 3 ms 1372 KB Output is correct
30 Correct 5 ms 1624 KB Output is correct
31 Correct 3 ms 1628 KB Output is correct
32 Correct 5 ms 2140 KB Output is correct
33 Correct 273 ms 78420 KB Output is correct
34 Correct 211 ms 53624 KB Output is correct
35 Correct 255 ms 76376 KB Output is correct
36 Correct 221 ms 53448 KB Output is correct
37 Correct 137 ms 34920 KB Output is correct
38 Correct 101 ms 30404 KB Output is correct
39 Correct 149 ms 27852 KB Output is correct
40 Correct 125 ms 27676 KB Output is correct
41 Correct 74 ms 27852 KB Output is correct
42 Correct 148 ms 27852 KB Output is correct
43 Correct 131 ms 27752 KB Output is correct
44 Correct 300 ms 105836 KB Output is correct
45 Correct 200 ms 68292 KB Output is correct
46 Correct 70 ms 30552 KB Output is correct
47 Correct 183 ms 39996 KB Output is correct
48 Correct 111 ms 30660 KB Output is correct
49 Correct 75 ms 30664 KB Output is correct
50 Correct 61 ms 39228 KB Output is correct
51 Correct 68 ms 39680 KB Output is correct
52 Correct 167 ms 40364 KB Output is correct
53 Correct 107 ms 31048 KB Output is correct
54 Correct 66 ms 27752 KB Output is correct
55 Correct 137 ms 45816 KB Output is correct
56 Correct 120 ms 44356 KB Output is correct
57 Correct 124 ms 42828 KB Output is correct
58 Correct 189 ms 45152 KB Output is correct
59 Correct 178 ms 44752 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 6 ms 1912 KB Output is correct
6 Correct 4 ms 1628 KB Output is correct
7 Correct 3 ms 1372 KB Output is correct
8 Correct 5 ms 2140 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 2 ms 1148 KB Output is correct
12 Correct 3 ms 1116 KB Output is correct
13 Correct 3 ms 1116 KB Output is correct
14 Correct 4 ms 1116 KB Output is correct
15 Correct 3 ms 1268 KB Output is correct
16 Correct 6 ms 2376 KB Output is correct
17 Correct 4 ms 1628 KB Output is correct
18 Correct 2 ms 1116 KB Output is correct
19 Correct 4 ms 1372 KB Output is correct
20 Correct 3 ms 1368 KB Output is correct
21 Correct 2 ms 1140 KB Output is correct
22 Correct 2 ms 1372 KB Output is correct
23 Correct 2 ms 1392 KB Output is correct
24 Correct 4 ms 1372 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 2 ms 1116 KB Output is correct
27 Correct 3 ms 1648 KB Output is correct
28 Correct 3 ms 1372 KB Output is correct
29 Correct 3 ms 1372 KB Output is correct
30 Correct 5 ms 1624 KB Output is correct
31 Correct 3 ms 1628 KB Output is correct
32 Correct 5 ms 2140 KB Output is correct
33 Correct 273 ms 78420 KB Output is correct
34 Correct 211 ms 53624 KB Output is correct
35 Correct 255 ms 76376 KB Output is correct
36 Correct 221 ms 53448 KB Output is correct
37 Correct 137 ms 34920 KB Output is correct
38 Correct 101 ms 30404 KB Output is correct
39 Correct 149 ms 27852 KB Output is correct
40 Correct 125 ms 27676 KB Output is correct
41 Correct 74 ms 27852 KB Output is correct
42 Correct 148 ms 27852 KB Output is correct
43 Correct 131 ms 27752 KB Output is correct
44 Correct 300 ms 105836 KB Output is correct
45 Correct 200 ms 68292 KB Output is correct
46 Correct 70 ms 30552 KB Output is correct
47 Correct 183 ms 39996 KB Output is correct
48 Correct 111 ms 30660 KB Output is correct
49 Correct 75 ms 30664 KB Output is correct
50 Correct 61 ms 39228 KB Output is correct
51 Correct 68 ms 39680 KB Output is correct
52 Correct 167 ms 40364 KB Output is correct
53 Correct 107 ms 31048 KB Output is correct
54 Correct 66 ms 27752 KB Output is correct
55 Correct 137 ms 45816 KB Output is correct
56 Correct 120 ms 44356 KB Output is correct
57 Correct 124 ms 42828 KB Output is correct
58 Correct 189 ms 45152 KB Output is correct
59 Correct 178 ms 44752 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 264 ms 66680 KB Output is correct
65 Incorrect 234 ms 48656 KB Output isn't correct
66 Halted 0 ms 0 KB -