#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
const long long N = 5e4 + 10;
const long long INF = 1e18 + 10;
struct esim {
long long mindiff;
long long pos;
long long strength;
};
esim dp[N][30][30];
long long NN;
vector <long long> ss, pp, ww, ll;
void init(int n, vector<int> s, vector<int> p, vector<int> w, vector<int> l) {
NN = n;
s.push_back(0);
p.push_back(0);
w.push_back(n);
l.push_back(n);
for (int i = 0; i <= n; i++) {
ss.push_back(s[i]);
}
for (int i = 0; i <= n; i++) {
pp.push_back(p[i]);
}
for (int i = 0; i <= n; i++) {
ww.push_back(w[i]);
}
for (int i = 0; i <= n; i++) {
ll.push_back(l[i]);
}
for (int k = 0; k < 30; k++) {
for (int i = 0; i <= n; i++) {
for (int j = 0; j < 30; j++) {
if (k == 0) {
dp[i][j][k].pos = ((1 << j) >= s[i]) ? w[i] : l[i];
dp[i][j][k].strength = ((1 << j) >= s[i]) ? s[i] : p[i];
dp[i][j][k].mindiff = ((1 << j) < s[i]) ? s[i] : INF;
}
else {
dp[i][j][k].pos = dp[dp[i][j][k - 1].pos][j][k - 1].pos;
dp[i][j][k].strength = dp[i][j][k - 1].strength + dp[dp[i][j][k - 1].pos][j][k - 1].strength;
dp[i][j][k].mindiff = min(dp[i][j][k - 1].mindiff, dp[dp[i][j][k - 1].pos][j][k - 1].mindiff - dp[i][j][k - 1].strength);
}
}
}
}
}
long long simulate(int xx, int zz) {
long long x = xx, z = zz;
while (1) {
int v = (int)(log2l(z));
for (int k = 29; k >= 0; k--) {
if (dp[x][v][k].pos == NN || dp[x][v][k].mindiff <= z || (int)(log2l(z + dp[x][v][k].strength)) > v) continue;
z += dp[x][v][k].strength;
x = dp[x][v][k].pos;
}
if (z >= ss[x]) {
z += ss[x];
x = ww[x];
}
else {
z += pp[x];
x = ll[x];
}
if (xx == NN) return z;
}
return 0;
}
