QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#504617 | #9101. Zayin and Bus | PhantomThreshold# | AC ✓ | 166ms | 13504kb | C++20 | 934b | 2024-08-04 14:06:47 | 2024-08-04 14:06:47 |
Judging History
answer
#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int maxn = 1010000;
const int inf = 1e9;
int n,ans;
int a[maxn];
vector<int>V[maxn];
int cnt[maxn];
void dfs(const int x,const int fa,const int dep)
{
cnt[dep]++;
for(auto y:V[x]) if(y!=fa)
{
dfs(y,x,dep+1);
}
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
int Tcase; cin>>Tcase;
while(Tcase--)
{
cin>>n;
for(int i=1;i<=n;i++)
{
vector<int>_;
V[i].swap(_);
}
for(int i=1;i<n;i++)
{
int y; cin>>y;
int x=i;
V[x].push_back(y);
V[y].push_back(x);
}
for(int i=1;i<=n;i++)
{
cin>>a[i];
a[i]+=i;
}
for(int i=1;i<=n;i++) cnt[i]=0;
dfs(1,0,1);
sort(a+1,a+n+1);
ans=0;
for(int i=1,j=n;i<=n;i++)
{
for(int k=1;k<=cnt[i];k++)
{
ans=max(a[j]+i,ans);
j--;
}
}
cout<<ans-1<<endl;
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 5708kb
input:
14 1 1 1 2 1 3 2 1 1 1 2 1 1 2 2 1 2 1 2 1 1 3 2 1 3 1 2 1 1 4 2 1 4 1 3 1 1 1 1 1 3 1 2 1 1 1 3 1 1 1 3 2 3 1 2 1 3 2
output:
2 3 4 3 4 4 5 4 6 5 4 4 6 6
result:
ok 14 lines
Test #2:
score: 0
Accepted
time: 166ms
memory: 13504kb
input:
15 1000 1 2 2 1 1 1 4 8 1 7 7 7 9 3 4 7 15 18 18 4 6 11 19 7 6 1 9 13 2 21 28 6 17 24 24 2 28 5 32 24 23 8 3 26 15 28 25 34 46 41 33 16 46 11 7 2 13 53 12 59 52 53 51 52 31 41 63 18 55 49 55 62 15 19 23 67 18 37 2 4 23 75 58 55 14 84 20 3 7 89 82 15 53 77 60 25 97 69 5 40 54 24 72 10 87 90 99 43 71 ...
output:
98572828 100088663 99870474 100076153 99995412 100076982 99971239 100079684 99928633 100093408 99432584 100093568 99620300 100058966 99565256
result:
ok 15 lines