#include "obstacles.h" #include <bits/stdc++.h> using namespace std; vector<int> v; void initialize(vector<int> T, vector<int> H) { v.clear(); for (int i = 0; i < H.size(); i++) { if (T[0] <= H[i]) v.push_back(i); } return; } bool can_reach(int L, int R, int S, int D) { auto it = lower_bound(v.begin(), v.end(), min(S, D)); if (it != v.end() && *it < max(S, D)) { return false; } return true; }