This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
const int N=1e5+5;
long long f[N][2];
int findSample(int n,int confidence[],int host[],int protocol[])
{
for(int i=0;i<n;i++)
{
f[i][1]=confidence[i];
f[i][0]=0;
}
for(int i=n-1;i>=0;i--)
{
if(!protocol[i])
{
f[host[i]][1]+=f[i][0];
f[host[i]][0]+=max(f[i][0],f[i][1]);
}
else if(protocol[i]==1)
{
f[host[i]][1]=max({f[host[i]][1]+f[i][0],f[i][1]+f[host[i]][0],f[host[i]][1]+f[i][1]});
f[host[i]][0]+=f[i][0];
}
else
{
f[host[i]][1]=max(f[host[i]][1]+f[i][0],f[i][1]+f[host[i]][0]);
f[host[i]][0]+=f[i][0];
}
}
return max(f[0][0],f[0][1]);
}
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