#include "jumps.h"
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define f first
#define s second
using namespace std;
const int N = 2e5 + 10;
int bp[N][18];
int bp2[N][18];
int bp3[N][18];
int z[N], h[N];
int Le[N], Ri[N];
void init(int n, vector<int> H) {
for(int j = 1; j <= n; j++)
h[j] = H[j - 1];
stack<int> L, R;
for(int j = 1; j <= n; j++)
z[h[j]] = j;
for(int i = 1; i <= n; i++) {
while(L.size() && L.top() <= h[i])L.pop();
if(L.size())
Le[i] = L.top();
L.push(h[i]);
}
for(int i = n; i >= 1; i--) {
while(R.size() && R.top() <= h[i])R.pop();
if(R.size())
Ri[i] = R.top();
R.push(h[i]);
}
for(int j = n; j >= 1; j--) {
bp[z[j]][0] = (Le[z[j]] > Ri[z[j]] ? Le[z[j]] : Ri[z[j]]);
bp2[z[j]][0] = Ri[z[j]];
bp3[z[j]][0] = Le[z[j]];
for(int i = 1; i < 18; i++) {
bp[z[j]][i] = bp[z[bp[z[j]][i - 1]]][i - 1];
bp2[z[j]][i] = bp2[z[bp2[z[j]][i - 1]]][i - 1];
bp3[z[j]][i] = bp3[z[bp3[z[j]][i - 1]]][i - 1];
}
}
}
int minimum_jumps(int A, int B, int C, int D) {
A++, B++, C++, D++;
ll X = B;
for(int j = 17; j >= 0; j--) {
if(bp[X][j] == 0)continue;
if(z[bp2[X][j]] < C) {
X = z[bp2[X][j]];
}
}
X = bp2[X][0];
if(X > D)return -1;
for(int j = 17; j >= 0; j--) {
if(bp3[B][j] == 0)continue;
if(bp3[B][j] <= h[C] && z[bp3[B][j]] >= A) {
B = z[bp3[B][j]];
}
}
ll cnt = 0;
for(int j = 17; j >= 0; j--) {
if(bp[B][j] == 0)continue;
if(bp[B][j] <= h[C]) {
cnt += (1<<j);
B = z[bp[B][j]];
}
}
for(int j = 17; j >= 0; j--) {
if(bp2[B][j] == 0)continue;
if(bp2[B][j] <= h[C]) {
cnt += (1<<j);
B = z[bp2[B][j]];
}
}
if(B != C)return -1;
return cnt;
}
Compilation message
roads.cpp:1:10: fatal error: jumps.h: No such file or directory
1 | #include "jumps.h"
| ^~~~~~~~~
compilation terminated.
