#include "friend.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
const int N = 2005;
vector<int> v;
vector<int> edge[N];
int val[N];
bool visited[N];
int orson[N];
int oroogui[N];
void dfs(int k) {
visited[k] = 1;
for(auto x: edge[k]) {
if(visited[x] == 1) continue;
dfs(x);
orson[k] += oroogui[x];
oroogui[k] += max(orson[x], oroogui[x]);
}
orson[k] += val[k];
}
// Find out best sample
int findSample(int n, int confidence[], int host[], int protocol[]){
// subtask 4 I am your friend
for(int i = 1; i < n; i ++) {
// host[i] / protocol[i]
edge[i].pb(host[i]);
edge[host[i]].pb(i);
}
for(int i = 0; i < n; i ++) val[i] = confidence[i];
dfs(0);
return max(orson[0], oroogui[0]);
}
