const int N=100100;
vector<int>G[N];
vector<long long>c,w;
int v,h[N];
long long f[N][2][2][2],g[2][2][2],ans;
void dfs(int x){
    if(G[x].empty()){
        f[x][0][0][0]=f[x][1][1][1]=0;
        return h[x]=++v,void();
    }
    for(int y : G[x]){
        dfs(y);
        if(!h[x])
            for(int i=0;i<=1;i++) for(int j=0;j<=1;j++) for(int k=0;k<=1;k++)
                f[x][i][j][k]=max(f[y][i^1][j][k]+c[y-1],f[y][i][j][k]);
        else{
            for(int i=0;i<=1;i++) for(int j=0;j<=1;j++) for(int k=0;k<=1;k++)
                g[i][j][k]=-1e18;
            for(int i=0;i<=1;i++) for(int j=0;j<=1;j++) for(int k=0;k<=1;k++)
            for(int a=0;a<=1;a++) for(int b=0;b<=1;b++) for(int z=0;z<=1;z++)
                g[i][j][k]=max(g[i][j][k],f[x][i][j][a]+f[y][z][b][k]+c[y-1]*(i^z)+w[h[x]-1]*(a^b));
            for(int i=0;i<=1;i++) for(int j=0;j<=1;j++) for(int k=0;k<=1;k++)
                f[x][i][j][k]=g[i][j][k];
        } h[x]=h[y];
    }
}
long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
    for(int i=0;i<P.size();i++)
        G[P[i]].push_back(i+1);
    memset(f,0xcf,sizeof(f));
    c=C,w=W,dfs(0),ans=-1e18;
    for(int i=0;i<=1;i++) for(int j=0;j<=1;j++) for(int k=0;k<=1;k++)
        ans=max(ans,f[0][i][j][k]+W.back()*(j^k)); ans=-ans;
    for(long long x : C) ans+=x; for(long long x : W) ans+=x;
    return ans;
}

answer.code:2:1: error: ‘vector’ does not name a type
    2 | vector<int>G[N];
      | ^~~~~~
answer.code:3:1: error: ‘vector’ does not name a type
    3 | vector<long long>c,w;
      | ^~~~~~
answer.code: In function ‘void dfs(int)’:
answer.code:7:8: error: ‘G’ was not declared in this scope
    7 |     if(G[x].empty()){
      |        ^
answer.code:11:17: error: ‘G’ was not declared in this scope
   11 |     for(int y : G[x]){
      |                 ^
answer.code:15:51: error: ‘c’ was not declared in this scope
   15 |                 f[x][i][j][k]=max(f[y][i^1][j][k]+c[y-1],f[y][i][j][k]);
      |                                                   ^
answer.code:15:31: error: ‘max’ was not declared in this scope
   15 |                 f[x][i][j][k]=max(f[y][i^1][j][k]+c[y-1],f[y][i][j][k]);
      |                               ^~~
answer.code:21:71: error: ‘c’ was not declared in this scope
   21 |                 g[i][j][k]=max(g[i][j][k],f[x][i][j][a]+f[y][z][b][k]+c[y-1]*(i^z)+w[h[x]-1]*(a^b));
      |                                                                       ^
answer.code:21:84: error: ‘w’ was not declared in this scope
   21 |                 g[i][j][k]=max(g[i][j][k],f[x][i][j][a]+f[y][z][b][k]+c[y-1]*(i^z)+w[h[x]-1]*(a^b));
      |                                                                                    ^
answer.code:21:28: error: ‘max’ was not declared in this scope
   21 |                 g[i][j][k]=max(g[i][j][k],f[x][i][j][a]+f[y][z][b][k]+c[y-1]*(i^z)+w[h[x]-1]*(a^b));
      |                            ^~~
answer.code: At global scope:
answer.code:27:24: error: ‘vector’ was not declared in this scope
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                        ^~~~~~
answer.code:27:31: error: expected primary-expression before ‘int’
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                               ^~~
answer.code:27:39: error: ‘vector’ was not declared in this scope
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                                       ^~~~~~
answer.code:27:46: error: expected primary-expression before ‘long’
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                                              ^~~~
answer.code:27:60: error: ‘vector’ was not declared in this scope
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                                                            ^~~~~~
answer.code:27:67: error: expected primary-expression before ‘long’
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                                                                   ^~~~
answer.code:27:79: error: expression list treated as compound expression in initializer [-fpermissive]
   27 | long long place_police(vector<int> P, vector<long long> C, vector<long long> W){
      |                                                                               ^