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Submission #972704

# Submission time Handle Problem Language Result Execution time Memory
972704 2024-05-01T03:43:35 Z huutuan Worst Reporter 4 (JOI21_worst_reporter4) C++14
79 / 100
 396 ms 524288 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long

const int N=2e5+10;
map<int, int> mp[N];
int n, a[N], h[N], c[N], sz[N];
vector<int> g[N];

void dfs_sz(int u){
   sz[u]=1;
   for (int &v:g[u]){
      dfs_sz(v);
      sz[u]+=sz[v];
      if (sz[v]>sz[g[u][0]]) swap(v, g[u][0]);
   }
}

void dfs_merge(int u){
   if (g[u].empty()){
      mp[u][1]=c[u];
      mp[u][h[u]+1]=-c[u];
      return;
   }
   for (int &v:g[u]){
      dfs_merge(v);
      if (v==g[u][0]) mp[u].swap(mp[v]);
      else{
         for (auto &i:mp[v]){
            mp[u][i.first]+=i.second;
         }
      }
   }
   mp[u][h[u]+1]-=c[u];
   auto it=mp[u].find(h[u]+1);
   int cur=c[u];
   while (it!=mp[u].begin()){
      --it;
      if (it->second<0 && cur>=-it->second){
         cur-=-it->second;
         it=mp[u].erase(it);
      }else{
         it->second+=cur;
         cur=0;
         break;
      }
   }
}

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n;
   vector<int> vals{-1};
   for (int i=1; i<=n; ++i){
      cin >> a[i] >> h[i] >> c[i];
      vals.push_back(h[i]);
      if (a[i]!=i) g[a[i]].push_back(i);
   }
   sort(vals.begin(), vals.end());
   vals.resize(unique(vals.begin(), vals.end())-vals.begin());
   for (int i=1; i<=n; ++i) h[i]=lower_bound(vals.begin(), vals.end(), h[i])-vals.begin();
   dfs_sz(1);
   dfs_merge(1);
   cout << accumulate(c+1, c+n+1, 0ll)-mp[1][1] << '\n';
   return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20572 KB Output is correct
2 Correct 4 ms 20572 KB Output is correct
3 Correct 5 ms 20572 KB Output is correct
4 Correct 4 ms 20572 KB Output is correct
5 Correct 10 ms 22108 KB Output is correct
6 Correct 8 ms 21596 KB Output is correct
7 Correct 7 ms 21540 KB Output is correct
8 Correct 10 ms 22096 KB Output is correct
9 Correct 8 ms 21596 KB Output is correct
10 Correct 7 ms 21340 KB Output is correct
11 Correct 7 ms 21340 KB Output is correct
12 Correct 9 ms 21920 KB Output is correct
13 Correct 7 ms 22104 KB Output is correct
14 Correct 7 ms 21340 KB Output is correct
15 Correct 7 ms 21340 KB Output is correct
16 Correct 10 ms 22412 KB Output is correct
17 Correct 9 ms 21848 KB Output is correct
18 Correct 6 ms 21340 KB Output is correct
19 Correct 8 ms 21852 KB Output is correct
20 Correct 7 ms 21588 KB Output is correct
21 Correct 7 ms 21608 KB Output is correct
22 Correct 9 ms 21860 KB Output is correct
23 Correct 7 ms 21544 KB Output is correct
24 Correct 8 ms 21860 KB Output is correct
25 Correct 8 ms 21796 KB Output is correct
26 Correct 7 ms 21860 KB Output is correct
27 Correct 10 ms 21856 KB Output is correct
28 Correct 8 ms 22024 KB Output is correct
29 Correct 8 ms 21860 KB Output is correct
30 Correct 8 ms 21804 KB Output is correct
31 Correct 8 ms 21860 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20572 KB Output is correct
2 Correct 4 ms 20572 KB Output is correct
3 Correct 5 ms 20572 KB Output is correct
4 Correct 4 ms 20572 KB Output is correct
5 Correct 10 ms 22108 KB Output is correct
6 Correct 8 ms 21596 KB Output is correct
7 Correct 7 ms 21540 KB Output is correct
8 Correct 10 ms 22096 KB Output is correct
9 Correct 8 ms 21596 KB Output is correct
10 Correct 7 ms 21340 KB Output is correct
11 Correct 7 ms 21340 KB Output is correct
12 Correct 9 ms 21920 KB Output is correct
13 Correct 7 ms 22104 KB Output is correct
14 Correct 7 ms 21340 KB Output is correct
15 Correct 7 ms 21340 KB Output is correct
16 Correct 10 ms 22412 KB Output is correct
17 Correct 9 ms 21848 KB Output is correct
18 Correct 6 ms 21340 KB Output is correct
19 Correct 8 ms 21852 KB Output is correct
20 Correct 7 ms 21588 KB Output is correct
21 Correct 7 ms 21608 KB Output is correct
22 Correct 9 ms 21860 KB Output is correct
23 Correct 7 ms 21544 KB Output is correct
24 Correct 8 ms 21860 KB Output is correct
25 Correct 8 ms 21796 KB Output is correct
26 Correct 7 ms 21860 KB Output is correct
27 Correct 10 ms 21856 KB Output is correct
28 Correct 8 ms 22024 KB Output is correct
29 Correct 8 ms 21860 KB Output is correct
30 Correct 8 ms 21804 KB Output is correct
31 Correct 8 ms 21860 KB Output is correct
32 Correct 9 ms 22120 KB Output is correct
33 Correct 363 ms 90960 KB Output is correct
34 Correct 249 ms 66316 KB Output is correct
35 Correct 352 ms 87904 KB Output is correct
36 Correct 238 ms 66496 KB Output is correct
37 Correct 154 ms 47896 KB Output is correct
38 Correct 170 ms 43616 KB Output is correct
39 Correct 156 ms 64956 KB Output is correct
40 Correct 130 ms 64960 KB Output is correct
41 Correct 91 ms 64864 KB Output is correct
42 Correct 156 ms 49484 KB Output is correct
43 Correct 122 ms 49448 KB Output is correct
44 Correct 322 ms 118464 KB Output is correct
45 Correct 231 ms 82592 KB Output is correct
46 Correct 94 ms 42944 KB Output is correct
47 Correct 213 ms 65468 KB Output is correct
48 Correct 131 ms 58696 KB Output is correct
49 Correct 89 ms 58756 KB Output is correct
50 Correct 247 ms 65708 KB Output is correct
51 Correct 111 ms 53396 KB Output is correct
52 Correct 221 ms 66752 KB Output is correct
53 Correct 119 ms 59584 KB Output is correct
54 Correct 107 ms 65164 KB Output is correct
55 Correct 203 ms 67880 KB Output is correct
56 Correct 171 ms 70880 KB Output is correct
57 Correct 166 ms 72908 KB Output is correct
58 Correct 178 ms 67456 KB Output is correct
59 Correct 176 ms 67260 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20572 KB Output is correct
2 Correct 4 ms 20572 KB Output is correct
3 Correct 5 ms 20572 KB Output is correct
4 Correct 4 ms 20572 KB Output is correct
5 Correct 10 ms 22108 KB Output is correct
6 Correct 8 ms 21596 KB Output is correct
7 Correct 7 ms 21540 KB Output is correct
8 Correct 10 ms 22096 KB Output is correct
9 Correct 8 ms 21596 KB Output is correct
10 Correct 7 ms 21340 KB Output is correct
11 Correct 7 ms 21340 KB Output is correct
12 Correct 9 ms 21920 KB Output is correct
13 Correct 7 ms 22104 KB Output is correct
14 Correct 7 ms 21340 KB Output is correct
15 Correct 7 ms 21340 KB Output is correct
16 Correct 10 ms 22412 KB Output is correct
17 Correct 9 ms 21848 KB Output is correct
18 Correct 6 ms 21340 KB Output is correct
19 Correct 8 ms 21852 KB Output is correct
20 Correct 7 ms 21588 KB Output is correct
21 Correct 7 ms 21608 KB Output is correct
22 Correct 9 ms 21860 KB Output is correct
23 Correct 7 ms 21544 KB Output is correct
24 Correct 8 ms 21860 KB Output is correct
25 Correct 8 ms 21796 KB Output is correct
26 Correct 7 ms 21860 KB Output is correct
27 Correct 10 ms 21856 KB Output is correct
28 Correct 8 ms 22024 KB Output is correct
29 Correct 8 ms 21860 KB Output is correct
30 Correct 8 ms 21804 KB Output is correct
31 Correct 8 ms 21860 KB Output is correct
32 Correct 9 ms 22120 KB Output is correct
33 Correct 363 ms 90960 KB Output is correct
34 Correct 249 ms 66316 KB Output is correct
35 Correct 352 ms 87904 KB Output is correct
36 Correct 238 ms 66496 KB Output is correct
37 Correct 154 ms 47896 KB Output is correct
38 Correct 170 ms 43616 KB Output is correct
39 Correct 156 ms 64956 KB Output is correct
40 Correct 130 ms 64960 KB Output is correct
41 Correct 91 ms 64864 KB Output is correct
42 Correct 156 ms 49484 KB Output is correct
43 Correct 122 ms 49448 KB Output is correct
44 Correct 322 ms 118464 KB Output is correct
45 Correct 231 ms 82592 KB Output is correct
46 Correct 94 ms 42944 KB Output is correct
47 Correct 213 ms 65468 KB Output is correct
48 Correct 131 ms 58696 KB Output is correct
49 Correct 89 ms 58756 KB Output is correct
50 Correct 247 ms 65708 KB Output is correct
51 Correct 111 ms 53396 KB Output is correct
52 Correct 221 ms 66752 KB Output is correct
53 Correct 119 ms 59584 KB Output is correct
54 Correct 107 ms 65164 KB Output is correct
55 Correct 203 ms 67880 KB Output is correct
56 Correct 171 ms 70880 KB Output is correct
57 Correct 166 ms 72908 KB Output is correct
58 Correct 178 ms 67456 KB Output is correct
59 Correct 176 ms 67260 KB Output is correct
60 Runtime error 396 ms 524288 KB Execution killed with signal 9
61 Halted 0 ms 0 KB -