이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb push_back
const int MAX_N = 50000, BAND_LIM = 23, DECOMP_LIM = 23;
int n, to[BAND_LIM][DECOMP_LIM][MAX_N + 1];
ll wei[BAND_LIM][DECOMP_LIM][MAX_N + 1], lim[BAND_LIM][DECOMP_LIM][MAX_N + 1];
vector<int> s, p, w, l;
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;
s.pb(0);
p.pb(0);
w.pb(n);
l.pb(n);
for (int b = 0; b < BAND_LIM; b++) {
int lb = (1 << b), rb = (1 << (b + 1)) - 1;
for (int i = 0; i <= n; i++) {
if (s[i] < lb) { // instant-win
to[b][0][i] = w[i];
wei[b][0][i] = s[i];
lim[b][0][i] = (ll)1e16;
} else if (s[i] > rb) { // instant-lose
to[b][0][i] = l[i];
wei[b][0][i] = p[i];
lim[b][0][i] = (ll)1e16;
} else {
to[b][0][i] = l[i];
wei[b][0][i] = p[i];
lim[b][0][i] = s[i];
}
}
for (int k = 1; k < DECOMP_LIM; k++) {
for (int i = 0; i <= n; i++) {
to[b][k][i] = to[b][k - 1][to[b][k - 1][i]];
wei[b][k][i] = wei[b][k - 1][i] + wei[b][k - 1][to[b][k - 1][i]];
lim[b][k][i] = min(lim[b][k - 1][i], lim[b][k - 1][to[b][k - 1][i]] - wei[b][k - 1][i]);
}
}
}
}
ll simulate(int x, int z) {
for (int b = 0; b < BAND_LIM; b++) {
int rb = (1 << (b + 1)) - 1;
if (z > rb) { // past this band
continue;
}
for (int k = DECOMP_LIM - 1; k >= 0; k--) {
if (lim[b][k][x] <= z || z + wei[b][k][x] > rb) {
continue;
}
z += wei[b][k][x];
x = to[b][k][x];
}
for (int iter = 0; iter < 2; iter++) {
if (z >= s[x]) {
z += s[x];
x = w[x];
} else {
z += p[x];
x = l[x];
}
if (x == n) {
return z;
}
}
}
assert(0);
}
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