#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
const int nax = 4e5 + 3;
int n;
vector<int>s, p, w, l;
long long sum_toN[nax];
vector<int>g[nax];
void dfs(int v, long long sum = 0) {
if(v < n) sum += s[v];
sum_toN[v] = sum;
for(int u : g[v]) {
dfs(u, sum);
}
}
const int lg = 24;
long long sp[nax][lg], agg[nax][lg];
void init(int N, vector<int> S, vector<int> P, vector<int> W, vector<int> L) {
n = N, s = S, p = P, w = W, l = L;
for(int i=0; i<n; ++i) {
g[w[i]].push_back(i);
}
dfs(n);
for(int i=0; i<n; ++i) {
sp[i][0] = l[i];
agg[i][0] = p[i];
}
for(int j=1; j<lg; ++j) {
for(int i=0; i<n; ++i) {
sp[i][j] = sp[sp[i][j-1]][j-1];
agg[i][j] = agg[i][j-1] + agg[sp[i][j-1]][j-1];
}
}
}
const int anax = 1e7;
long long simulate(int x, int z) {
long long cz = z;
for(int j=lg-1; j>=0; --j) {
if(cz + agg[x][j] <= s[0]) {
cz += agg[x][j];
x = sp[x][j];
}
}
if(cz < s[0]) {
cz += agg[x][0];
x = sp[x][0];
}
cz += sum_toN[x];
return cz;
}
