제출 #1300759

#제출 시각아이디문제언어결과실행 시간메모리
1300759nataliaa장애물 (IOI25_obstacles)C++20
10 / 100
67 ms8192 KiB
#include "obstacles.h" #include<bits/stdc++.h> using namespace std; int f[200005]; int l[200005]; int n, m; void initialize(vector<int> T, vector<int> H){ n = T.size(), m = H.size(); for(int i = 0; i <m; i++){ if(T[0]<=H[i]) f[i+1]++; if(T[n-1]<=H[i]) l[i+1]++; } for(int i = 1; i < m; i++){ f[i+1]+=f[i]; l[i+1]+=l[i]; } } bool can_reach(int l, int r, int s, int d){ if(s==d) return true; if(s>d) swap(s,d); if(f[d]-f[s]==0) return true; return false; }
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