#include "friend.h"
#include<bits/stdc++.h>
#define pb emplace_back
#define vi vector<int>
using namespace std;
// Find out best sample
/*
6
13 3 6 20 10 15
0 0
0 1
1 2
2 1
0 0
*/
bool f[1005][1005];
void addedge(int x,int h, int ope){
if(ope == 0) f[x][h] = f[h][x] = 1;
else if(ope == 1){
for(int i=0;i<x;i++){
if(f[h][i]) f[x][i] = f[i][x] = 1;
}
}
else{
for(int i=0;i<x;i++){
if(i == h || f[h][i]) f[i][x] = f[x][i] = 1;
}
}
}
bool ok(vi &v){
/* for(auto i:v) cout<<i<<" "; cout<<'\n'; */
int n = v.size();
for(int i=0;i<n;i++) for(int j=i+1;j<n;j++) if(f[v[i]][v[j]]) return 0;
return 1;
}
int findSample(int n,int conf[],int host[],int ope[]){
for(int i=1;i<n;i++){
addedge(i, host[i], ope[i]);
}
/* for(int i=0;i<n;i++){ */
/* for(int j=0;j<n;j++){ */
/* cout<<f[i][j]<<" \n"[j==n-1]; */
/* } */
/* } */
int all = 1<<n, ans = 0;
for(int i=1;i<all;i++){
vector<int> v;
for(int j=0;j<n;j++){
if(i>>j&1) v.pb(j);
}
if(ok(v)){
int ta = 0;
for(auto &x:v) ta += conf[x];
ans = max(ans, ta);
}
}
return ans;
}
