#include<bits/stdc++.h>
using namespace std;
#define ll long long
const int MAXN=2e5+6;
int n;
vector<int>g[MAXN];
ll c[MAXN];
int a[MAXN],h[MAXN],subtree[MAXN];
void dfs1(int u,int p)
{
subtree[u]=1;
for(auto xd:g[u])
{
if(xd==p)continue;
dfs1(xd,u);
subtree[u]+=subtree[xd];
}
}
void dfs(int u,int p,map<int,ll> &mp)
{
int bc=-1,maxst=-1;
for(auto xd:g[u])
{
if(xd==p)continue;
if(subtree[xd]>maxst)
{
maxst=subtree[xd];
bc=xd;
}
}
if(bc==-1)
{
mp[h[u]+1]=c[u];
return;
}
dfs(bc,u,mp);
for(auto xd:g[u])
{
if(xd==p||xd==bc)continue;
map<int,ll> tmp;
dfs(xd,u,tmp);
for(auto it:tmp)
{
if(it.second!=0)mp[it.first]+=it.second;
}
}
mp[h[u]+1]+=c[u];
mp[0]+=c[u];
mp[h[u]]-=c[u];
auto it=mp.lower_bound(h[u]);
int d=mp[h[u]];
auto it1=it;
it--;
while(d<0)
{
int t=(*it).first;
if((*it).second+d>=0)
{
mp[t]+=d;
d=0;
}
else
{
d+=(*it).second;
it1=it;
it--;mp.erase(it1);
}
}
mp[h[u]]=d;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin>>n;
for(int i=1;i<=n;++i)
{
cin>>a[i]>>h[i]>>c[i];
if(i!=1)g[a[i]].push_back(i);
}
dfs1(1,0);
map<int,ll>mp;
dfs(1,0,mp);
cout<<mp[0]<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5100 KB |
Output is correct |
2 |
Correct |
4 ms |
5100 KB |
Output is correct |
3 |
Correct |
4 ms |
5100 KB |
Output is correct |
4 |
Correct |
4 ms |
5100 KB |
Output is correct |
5 |
Correct |
9 ms |
5484 KB |
Output is correct |
6 |
Correct |
8 ms |
5228 KB |
Output is correct |
7 |
Correct |
7 ms |
5228 KB |
Output is correct |
8 |
Correct |
9 ms |
5484 KB |
Output is correct |
9 |
Correct |
8 ms |
5228 KB |
Output is correct |
10 |
Correct |
7 ms |
5228 KB |
Output is correct |
11 |
Correct |
7 ms |
5228 KB |
Output is correct |
12 |
Correct |
9 ms |
6252 KB |
Output is correct |
13 |
Correct |
8 ms |
6252 KB |
Output is correct |
14 |
Correct |
9 ms |
5868 KB |
Output is correct |
15 |
Correct |
9 ms |
5868 KB |
Output is correct |
16 |
Correct |
10 ms |
5612 KB |
Output is correct |
17 |
Correct |
8 ms |
5228 KB |
Output is correct |
18 |
Correct |
6 ms |
5228 KB |
Output is correct |
19 |
Correct |
9 ms |
5996 KB |
Output is correct |
20 |
Correct |
7 ms |
5740 KB |
Output is correct |
21 |
Correct |
9 ms |
5740 KB |
Output is correct |
22 |
Correct |
7 ms |
5484 KB |
Output is correct |
23 |
Correct |
6 ms |
5228 KB |
Output is correct |
24 |
Correct |
9 ms |
6012 KB |
Output is correct |
25 |
Correct |
7 ms |
5740 KB |
Output is correct |
26 |
Correct |
10 ms |
6892 KB |
Output is correct |
27 |
Correct |
8 ms |
5996 KB |
Output is correct |
28 |
Correct |
9 ms |
6252 KB |
Output is correct |
29 |
Correct |
9 ms |
6636 KB |
Output is correct |
30 |
Correct |
11 ms |
6508 KB |
Output is correct |
31 |
Correct |
10 ms |
6508 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5484 KB |
Output is correct |
2 |
Correct |
360 ms |
24684 KB |
Output is correct |
3 |
Correct |
275 ms |
12652 KB |
Output is correct |
4 |
Correct |
373 ms |
22636 KB |
Output is correct |
5 |
Correct |
274 ms |
12460 KB |
Output is correct |
6 |
Correct |
232 ms |
12396 KB |
Output is correct |
7 |
Correct |
165 ms |
12268 KB |
Output is correct |
8 |
Correct |
239 ms |
53100 KB |
Output is correct |
9 |
Correct |
225 ms |
56300 KB |
Output is correct |
10 |
Correct |
132 ms |
56044 KB |
Output is correct |
11 |
Correct |
226 ms |
37632 KB |
Output is correct |
12 |
Correct |
239 ms |
37612 KB |
Output is correct |
13 |
Correct |
332 ms |
27828 KB |
Output is correct |
14 |
Correct |
251 ms |
15852 KB |
Output is correct |
15 |
Correct |
102 ms |
15468 KB |
Output is correct |
16 |
Correct |
330 ms |
44596 KB |
Output is correct |
17 |
Correct |
174 ms |
34284 KB |
Output is correct |
18 |
Correct |
113 ms |
34156 KB |
Output is correct |
19 |
Correct |
225 ms |
25544 KB |
Output is correct |
20 |
Correct |
94 ms |
13160 KB |
Output is correct |
21 |
Correct |
342 ms |
46316 KB |
Output is correct |
22 |
Correct |
156 ms |
34660 KB |
Output is correct |
23 |
Correct |
324 ms |
81132 KB |
Output is correct |
24 |
Correct |
261 ms |
50048 KB |
Output is correct |
25 |
Correct |
258 ms |
64364 KB |
Output is correct |
26 |
Correct |
258 ms |
70892 KB |
Output is correct |
27 |
Correct |
292 ms |
68588 KB |
Output is correct |
28 |
Correct |
290 ms |
68716 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5100 KB |
Output is correct |
2 |
Correct |
4 ms |
5100 KB |
Output is correct |
3 |
Correct |
4 ms |
5100 KB |
Output is correct |
4 |
Correct |
4 ms |
5100 KB |
Output is correct |
5 |
Correct |
9 ms |
5484 KB |
Output is correct |
6 |
Correct |
8 ms |
5228 KB |
Output is correct |
7 |
Correct |
7 ms |
5228 KB |
Output is correct |
8 |
Correct |
9 ms |
5484 KB |
Output is correct |
9 |
Correct |
8 ms |
5228 KB |
Output is correct |
10 |
Correct |
7 ms |
5228 KB |
Output is correct |
11 |
Correct |
7 ms |
5228 KB |
Output is correct |
12 |
Correct |
9 ms |
6252 KB |
Output is correct |
13 |
Correct |
8 ms |
6252 KB |
Output is correct |
14 |
Correct |
9 ms |
5868 KB |
Output is correct |
15 |
Correct |
9 ms |
5868 KB |
Output is correct |
16 |
Correct |
10 ms |
5612 KB |
Output is correct |
17 |
Correct |
8 ms |
5228 KB |
Output is correct |
18 |
Correct |
6 ms |
5228 KB |
Output is correct |
19 |
Correct |
9 ms |
5996 KB |
Output is correct |
20 |
Correct |
7 ms |
5740 KB |
Output is correct |
21 |
Correct |
9 ms |
5740 KB |
Output is correct |
22 |
Correct |
7 ms |
5484 KB |
Output is correct |
23 |
Correct |
6 ms |
5228 KB |
Output is correct |
24 |
Correct |
9 ms |
6012 KB |
Output is correct |
25 |
Correct |
7 ms |
5740 KB |
Output is correct |
26 |
Correct |
10 ms |
6892 KB |
Output is correct |
27 |
Correct |
8 ms |
5996 KB |
Output is correct |
28 |
Correct |
9 ms |
6252 KB |
Output is correct |
29 |
Correct |
9 ms |
6636 KB |
Output is correct |
30 |
Correct |
11 ms |
6508 KB |
Output is correct |
31 |
Correct |
10 ms |
6508 KB |
Output is correct |
32 |
Correct |
10 ms |
5484 KB |
Output is correct |
33 |
Correct |
360 ms |
24684 KB |
Output is correct |
34 |
Correct |
275 ms |
12652 KB |
Output is correct |
35 |
Correct |
373 ms |
22636 KB |
Output is correct |
36 |
Correct |
274 ms |
12460 KB |
Output is correct |
37 |
Correct |
232 ms |
12396 KB |
Output is correct |
38 |
Correct |
165 ms |
12268 KB |
Output is correct |
39 |
Correct |
239 ms |
53100 KB |
Output is correct |
40 |
Correct |
225 ms |
56300 KB |
Output is correct |
41 |
Correct |
132 ms |
56044 KB |
Output is correct |
42 |
Correct |
226 ms |
37632 KB |
Output is correct |
43 |
Correct |
239 ms |
37612 KB |
Output is correct |
44 |
Correct |
332 ms |
27828 KB |
Output is correct |
45 |
Correct |
251 ms |
15852 KB |
Output is correct |
46 |
Correct |
102 ms |
15468 KB |
Output is correct |
47 |
Correct |
330 ms |
44596 KB |
Output is correct |
48 |
Correct |
174 ms |
34284 KB |
Output is correct |
49 |
Correct |
113 ms |
34156 KB |
Output is correct |
50 |
Correct |
225 ms |
25544 KB |
Output is correct |
51 |
Correct |
94 ms |
13160 KB |
Output is correct |
52 |
Correct |
342 ms |
46316 KB |
Output is correct |
53 |
Correct |
156 ms |
34660 KB |
Output is correct |
54 |
Correct |
324 ms |
81132 KB |
Output is correct |
55 |
Correct |
261 ms |
50048 KB |
Output is correct |
56 |
Correct |
258 ms |
64364 KB |
Output is correct |
57 |
Correct |
258 ms |
70892 KB |
Output is correct |
58 |
Correct |
292 ms |
68588 KB |
Output is correct |
59 |
Correct |
290 ms |
68716 KB |
Output is correct |
60 |
Correct |
4 ms |
5100 KB |
Output is correct |
61 |
Incorrect |
4 ms |
5100 KB |
Output isn't correct |
62 |
Halted |
0 ms |
0 KB |
- |