oj.uz

Submission #417131

# Submission time Handle Problem Language Result Execution time Memory
417131 2021-06-03T12:02:03 Z kai824 Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 376 ms 63300 KB 
//tree subtasks: slope trick haha...
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define mp make_pair
#define pii pair<int,int>
#define f first
#define s second

int h[200005],c[200005];
vector<int> adjl[200005];

int delt[200005];
map<int,int> ss[200005];
map<int,int>::iterator it;

int nd;
void dfs(int node,int p=-1,bool r=false){
  ss[node].clear();delt[node]=0;

  for(int x:adjl[node]){
    if(x==p)continue;
    dfs(x,node);
  }
  nd=node;
  for(int x:adjl[node]){
    if(x==p)continue;
    if(ss[x].size()>=ss[nd].size())nd=x;
  }
  if(nd!=node){
    swap(ss[nd],ss[node]);
    swap(delt[nd],delt[node]);
  }
  for(int x:adjl[node]){
    if(x==p)continue;
    for(pii hm:ss[x]){
      ss[node][hm.f]+=hm.s;
    }
    ss[x].clear();
    delt[node]+=delt[x];
  }
  //add node value...
  delt[node]+=c[node];
  if(r){
    ss[node][h[node]]+=c[node];
    ss[node][h[node]-1]-=c[node];
  }else{
    it=ss[node].upper_bound(h[node]-1);
    int cur=0;
    while(true){
      if(it==ss[node].begin())break;
      it--;
      if(cur+it->s<=c[node]){
        cur+=it->s;
        it=ss[node].erase(it);
      }else{
        ss[node][it->f]=cur+it->s-c[node];
        break;
      }
    }
    ss[node][h[node]]+=c[node];
  }
}

int32_t main(){
  ios_base::sync_with_stdio(false);cin.tie(0);
  int n;
  cin>>n;

  int a;
  for(int i=1;i<=n;i++){
    cin>>a>>h[i]>>c[i];
    if(i>1)adjl[a].push_back(i);
  }
  dfs(1,-1,true);
  int ans=delt[1],cur=delt[1];
  for(it=ss[1].end();it!=ss[1].begin();){
    it--;
    cur-=it->s;
    ans=min(ans,cur);
  }
  cout<<ans;
  return 0;
}
/*
6
1 6 5
1 3 6
1 8 4
3 4 9
2 2 5
2 5 6

20
1 7 381792936
1 89 964898447
1 27 797240712
3 4 299745243
2 18 113181438
2 20 952129455
4 34 124298446
4 89 33466733
7 40 109601410
5 81 902931267
2 4 669879699
8 23 785166502
8 1 601717183
8 26 747624379
1 17 504589209
9 24 909134233
16 56 236448090
8 94 605526613
5 90 481898834
9 34 183442771
*/

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14412 KB Output is correct
2 Correct 9 ms 14332 KB Output is correct
3 Correct 9 ms 14412 KB Output is correct
4 Correct 10 ms 14412 KB Output is correct
5 Correct 15 ms 14820 KB Output is correct
6 Correct 13 ms 14588 KB Output is correct
7 Correct 12 ms 14764 KB Output is correct
8 Correct 17 ms 15012 KB Output is correct
9 Correct 14 ms 14780 KB Output is correct
10 Correct 13 ms 14660 KB Output is correct
11 Correct 11 ms 14664 KB Output is correct
12 Correct 13 ms 15584 KB Output is correct
13 Correct 12 ms 15580 KB Output is correct
14 Correct 13 ms 15180 KB Output is correct
15 Correct 12 ms 15120 KB Output is correct
16 Correct 14 ms 15056 KB Output is correct
17 Correct 14 ms 14740 KB Output is correct
18 Correct 11 ms 14672 KB Output is correct
19 Correct 13 ms 15272 KB Output is correct
20 Correct 13 ms 15136 KB Output is correct
21 Correct 12 ms 15128 KB Output is correct
22 Correct 12 ms 14944 KB Output is correct
23 Correct 12 ms 14884 KB Output is correct
24 Correct 14 ms 15228 KB Output is correct
25 Correct 14 ms 15300 KB Output is correct
26 Correct 12 ms 15564 KB Output is correct
27 Correct 12 ms 15256 KB Output is correct
28 Correct 13 ms 15324 KB Output is correct
29 Correct 12 ms 15588 KB Output is correct
30 Correct 13 ms 15584 KB Output is correct
31 Correct 14 ms 15584 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14412 KB Output is correct
2 Correct 9 ms 14332 KB Output is correct
3 Correct 9 ms 14412 KB Output is correct
4 Correct 10 ms 14412 KB Output is correct
5 Correct 15 ms 14820 KB Output is correct
6 Correct 13 ms 14588 KB Output is correct
7 Correct 12 ms 14764 KB Output is correct
8 Correct 17 ms 15012 KB Output is correct
9 Correct 14 ms 14780 KB Output is correct
10 Correct 13 ms 14660 KB Output is correct
11 Correct 11 ms 14664 KB Output is correct
12 Correct 13 ms 15584 KB Output is correct
13 Correct 12 ms 15580 KB Output is correct
14 Correct 13 ms 15180 KB Output is correct
15 Correct 12 ms 15120 KB Output is correct
16 Correct 14 ms 15056 KB Output is correct
17 Correct 14 ms 14740 KB Output is correct
18 Correct 11 ms 14672 KB Output is correct
19 Correct 13 ms 15272 KB Output is correct
20 Correct 13 ms 15136 KB Output is correct
21 Correct 12 ms 15128 KB Output is correct
22 Correct 12 ms 14944 KB Output is correct
23 Correct 12 ms 14884 KB Output is correct
24 Correct 14 ms 15228 KB Output is correct
25 Correct 14 ms 15300 KB Output is correct
26 Correct 12 ms 15564 KB Output is correct
27 Correct 12 ms 15256 KB Output is correct
28 Correct 13 ms 15324 KB Output is correct
29 Correct 12 ms 15588 KB Output is correct
30 Correct 13 ms 15584 KB Output is correct
31 Correct 14 ms 15584 KB Output is correct
32 Correct 14 ms 14932 KB Output is correct
33 Correct 376 ms 37004 KB Output is correct
34 Correct 264 ms 25036 KB Output is correct
35 Correct 369 ms 35740 KB Output is correct
36 Correct 275 ms 24832 KB Output is correct
37 Correct 194 ms 24376 KB Output is correct
38 Correct 184 ms 24360 KB Output is correct
39 Correct 200 ms 58492 KB Output is correct
40 Correct 184 ms 58332 KB Output is correct
41 Correct 134 ms 58276 KB Output is correct
42 Correct 192 ms 42804 KB Output is correct
43 Correct 177 ms 42692 KB Output is correct
44 Correct 337 ms 36144 KB Output is correct
45 Correct 228 ms 24260 KB Output is correct
46 Correct 112 ms 23808 KB Output is correct
47 Correct 296 ms 46404 KB Output is correct
48 Correct 145 ms 39512 KB Output is correct
49 Correct 117 ms 39492 KB Output is correct
50 Correct 243 ms 34824 KB Output is correct
51 Correct 120 ms 34696 KB Output is correct
52 Correct 309 ms 47456 KB Output is correct
53 Correct 181 ms 46556 KB Output is correct
54 Correct 153 ms 58204 KB Output is correct
55 Correct 228 ms 49472 KB Output is correct
56 Correct 220 ms 58928 KB Output is correct
57 Correct 193 ms 63300 KB Output is correct
58 Correct 232 ms 61376 KB Output is correct
59 Correct 231 ms 61384 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14412 KB Output is correct
2 Correct 9 ms 14332 KB Output is correct
3 Correct 9 ms 14412 KB Output is correct
4 Correct 10 ms 14412 KB Output is correct
5 Correct 15 ms 14820 KB Output is correct
6 Correct 13 ms 14588 KB Output is correct
7 Correct 12 ms 14764 KB Output is correct
8 Correct 17 ms 15012 KB Output is correct
9 Correct 14 ms 14780 KB Output is correct
10 Correct 13 ms 14660 KB Output is correct
11 Correct 11 ms 14664 KB Output is correct
12 Correct 13 ms 15584 KB Output is correct
13 Correct 12 ms 15580 KB Output is correct
14 Correct 13 ms 15180 KB Output is correct
15 Correct 12 ms 15120 KB Output is correct
16 Correct 14 ms 15056 KB Output is correct
17 Correct 14 ms 14740 KB Output is correct
18 Correct 11 ms 14672 KB Output is correct
19 Correct 13 ms 15272 KB Output is correct
20 Correct 13 ms 15136 KB Output is correct
21 Correct 12 ms 15128 KB Output is correct
22 Correct 12 ms 14944 KB Output is correct
23 Correct 12 ms 14884 KB Output is correct
24 Correct 14 ms 15228 KB Output is correct
25 Correct 14 ms 15300 KB Output is correct
26 Correct 12 ms 15564 KB Output is correct
27 Correct 12 ms 15256 KB Output is correct
28 Correct 13 ms 15324 KB Output is correct
29 Correct 12 ms 15588 KB Output is correct
30 Correct 13 ms 15584 KB Output is correct
31 Correct 14 ms 15584 KB Output is correct
32 Correct 14 ms 14932 KB Output is correct
33 Correct 376 ms 37004 KB Output is correct
34 Correct 264 ms 25036 KB Output is correct
35 Correct 369 ms 35740 KB Output is correct
36 Correct 275 ms 24832 KB Output is correct
37 Correct 194 ms 24376 KB Output is correct
38 Correct 184 ms 24360 KB Output is correct
39 Correct 200 ms 58492 KB Output is correct
40 Correct 184 ms 58332 KB Output is correct
41 Correct 134 ms 58276 KB Output is correct
42 Correct 192 ms 42804 KB Output is correct
43 Correct 177 ms 42692 KB Output is correct
44 Correct 337 ms 36144 KB Output is correct
45 Correct 228 ms 24260 KB Output is correct
46 Correct 112 ms 23808 KB Output is correct
47 Correct 296 ms 46404 KB Output is correct
48 Correct 145 ms 39512 KB Output is correct
49 Correct 117 ms 39492 KB Output is correct
50 Correct 243 ms 34824 KB Output is correct
51 Correct 120 ms 34696 KB Output is correct
52 Correct 309 ms 47456 KB Output is correct
53 Correct 181 ms 46556 KB Output is correct
54 Correct 153 ms 58204 KB Output is correct
55 Correct 228 ms 49472 KB Output is correct
56 Correct 220 ms 58928 KB Output is correct
57 Correct 193 ms 63300 KB Output is correct
58 Correct 232 ms 61376 KB Output is correct
59 Correct 231 ms 61384 KB Output is correct
60 Correct 9 ms 14412 KB Output is correct
61 Incorrect 10 ms 14412 KB Output isn't correct
62 Halted 0 ms 0 KB -