#include "obstacles.h" #include <bits/stdc++.h> using namespace std; set<int> walls; void initialize(std::vector<int> T, std::vector<int> H) { int maxT = 0; for (int i = 0; i < T.size(); ++i) { maxT = max(maxT, T[i]); } for (int i = 0; i < H.size(); ++i) { if (H[i] >= maxT) { walls.insert(i); } } } bool can_reach(int L, int R, int S, int D) { return walls.lower_bound(S) == walls.upper_bound(D); }