# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
782340 | caganyanmaz | Dungeons Game (IOI21_dungeons) | C++17 | 0 ms | 0 KiB |
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 <bits/stdc++.h>
#define __DEBUG__
#define pb push_back
using namespace std;
constexpr static int SIZE = 400001;
constexpr static int LOG_SIZE = 40;
int win_next[SIZE][LOG_SIZE];
int64_t win_gain[SIZE][LOG_SIZE];
int64_t win_max[SIZE][LOG_SIZE];
int lose_next[SIZE][LOG_SIZE];
int64_t lose_gain[SIZE][LOG_SIZE];
int64_t lose_min[SIZE][LOG_SIZE];
int n;
void init(int nn, vector<int> s, vector<int> p, vector<int> w, vector<int> l)
{
n = nn;
l.pb(n);
w.pb(n);
s.pb(0);
p.pb(0);
for (int i = 0; i <= n; i++)
{
win_next[i][0] = w[i];
win_max[i][0] = s[i];
win_gain[i][0] = s[i];
lose_next[i][0] = l[i];
lose_min[i][0] = s[i];
lose_gain[i][0] = p[i];
}
for (int i = 1; i < LOG_SIZE; i++)
{
for (int j = 0; j <= n; j++)
{
win_next[j][i] = win_next[win_next[j][i-1]][i-1];
win_gain[j][i] = win_gain[j][i-1] + win_gain[win_next[j][i-1]][i-1];
win_max[j][i] = max(win_max[j][i-1], win_max[win_next[j][i-1]][i-1] - win_gain[j][i-1]);
lose_next[j][i] = lose_next[lose_next[j][i-1]][i-1];
lose_gain[j][i] = lose_gain[j][i-1] + lose_gain[lose_next[j][i-1]][i-1];
lose_min[j][i] = min(lose_min[j][i-1], lose_min[lose_next[j][i-1]][i-1] - lose_gain[j][i-1]);
}
}
}
int64_t simulate(int x, int zz)
{
int64_t z = zz;
while (x != n)
{
int _next = LOG_SIZE-1;
for (int _next = LOG_SIZE-1; _next >= 0; _next--)
{
if (win_max[x][_next] <= z)
{
z += win_gain[x][_next];
x = win_next[x][_next];
}
}
for (int _next = LOG_SIZE-1; _next >= 0; _next--)
{
if (lose_min[x][_next] > z)
{
z += lose_gain[x][_next];
x = lose_next[x][_next];
}
}
}
return z;
}
#ifdef __DEBUG__
int main()
{
int n;
cin >> n;
vector<int> ss(n), pp(n), ww(n), ll(n);
for (int i = 0; i < n; i++)
cin >> ss[i] >> pp[i] >> ww[i] >> ll[i];
init(n, ss, pp, ww, ll);
int q;
cin >> q;
while (q--)
{
int x, z;
cin >> x >> z;
cout << simulate(x, z) <<"\n";
}
}
#