This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = pair<int, int>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
const int MAXN = 400005;
int n;
vector<int> s, p, w, l;
int nxt[8][25][MAXN];
int cost[8][25][MAXN];
int value[8][25][MAXN];
lint dp[MAXN];
void init(int _n, std::vector<int> _s, std::vector<int> _p, std::vector<int> _w, std::vector<int> _l) {
tie(n, s, p, w, l) = make_tuple(_n, _s, _p, _w, _l);
s.resize(n + 1);
for(int i = n - 1; i >= 0; i--) dp[i] = dp[w[i]] + s[i];
for(int i = 0; i < 8; i++){
int L = (1 << (3*i));
for(int j = 0; j < n; j++){
if(s[j] < L){
nxt[i][0][j] = w[j];
cost[i][0][j] = s[j];
value[i][0][j] = 1e9;
}
else{
nxt[i][0][j] = l[j];
cost[i][0][j] = p[j];
value[i][0][j] = s[j];
}
}
nxt[i][0][n] = n;
cost[i][0][n] = 1e8;
value[i][0][n] = 1e9;
for(int j = 1; j < 25; j++){
for(int k = 0; k <= n; k++){
nxt[i][j][k] = nxt[i][j-1][nxt[i][j-1][k]];
cost[i][j][k] = cost[i][j-1][k] + cost[i][j-1][nxt[i][j-1][k]];
cost[i][j][k] = min(cost[i][j][k], int(1e9));
value[i][j][k] = min(value[i][j-1][k], value[i][j-1][nxt[i][j-1][k]] - cost[i][j-1][k]);
value[i][j][k] = max(value[i][j][k], 0);
}
}
}
return;
}
long long simulate(int x, int zz) {
lint z = zz;
for(int i = 0; i < 8; i++){
while(z < (1 << (3*i+3))){
for(int j = 24; j >= 0; j--){
if(nxt[i][j][x] != n && z + cost[i][j][x] < (1<<(3*i+3)) && value[i][j][x] > z){
z += cost[i][j][x];
x = nxt[i][j][x];
}
}
if(x != n && z < (1 << (3*i+3))){
z += cost[i][0][x];
x = nxt[i][0][x];
}
if(x == n) break;
}
}
return z + dp[x];
}
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