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 "friend.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN=100000;
int p[MAXN], q[MAXN];
int findSample(int n,int confidence[],int host[],int protocol[]){
int i;
for(i=0; i<n; i++) p[i]=confidence[i], q[i]=0;
for(i=n-1; i>0; i--){
if(protocol[i]==0){
p[host[i]]=p[host[i]]+q[i];
q[host[i]]=q[host[i]]+p[i];
}
else if(protocol[i]==1){
p[host[i]]=max(p[host[i]]+p[i], max(p[host[i]]+q[i], q[host[i]]+p[i]));
q[host[i]]=q[host[i]]+q[i];
}
else{
p[host[i]]=max(p[host[i]]+q[i], q[host[i]]+p[i]);
q[host[i]]=q[host[i]]+q[i];
}
}
return max(p[0], q[0]);
}
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