제출 #867344

#제출 시각아이디문제언어결과실행 시간메모리
867344lalig777Finding Routers (IOI20_routers)C++14
컴파일 에러
0 ms0 KiB
/****************************************************************************** Online C++ Compiler. Code, Compile, Run and Debug C++ program online. Write your code in this editor and press "Run" button to compile and execute it. *******************************************************************************/ #include <bits/stdc++.h> #include <iostream> #include <vector> #include <algorithm> using namespace std; vector<int> find_routers(int l, int n, int q){ vector<int>ans(n); ans[0]=0; if (l%2!=0) l--; vector<pair<int,int>>memoria(n, make_pair(0, 1e9)); for (int i=1; i<n; i++){ int right=min(l-2*(n-i-1), 2*memoria[i].second-ans[i-1]-2); int left=max(ans[i-1]+2, 2*memoria[i-1].first-ans[i-1]); int m; bool tipo=false; while (left!=right){ m=(right-left)/2+left; if (m%2!=0) m++; if (left+2==right){ int m3=(left-ans[i-1])/2+ans[i-1]; if (m3%2==0) m3+=2; else m3++; if (use_detector(m3)==i) right-=2; else left+=2; } else if (tipo==false){ if (use_detector(m)==i+1){ memoria[i+1].second=min(memoria[i+1].second, m); right=m-2; }else{ memoria[i].first=max(memoria[i].first, m); tipo=true; } }else{ int m2=(right-m)/2+m; if (m2%2!=0) m2++; if (use_detector(m2)==i+1){ memoria[i+1].second=min(memoria[i+1].second, m2); right=m-2; tipo=false; }else memoria[i].first=max(memoria[i].first, m2); } }ans[i]=left; }return ans; }

컴파일 시 표준 에러 (stderr) 메시지

routers.cpp: In function 'std::vector<int> find_routers(int, int, int)':
routers.cpp:31:21: error: 'use_detector' was not declared in this scope
   31 |                 if (use_detector(m3)==i) right-=2;
      |                     ^~~~~~~~~~~~
routers.cpp:35:21: error: 'use_detector' was not declared in this scope
   35 |                 if (use_detector(m)==i+1){
      |                     ^~~~~~~~~~~~
routers.cpp:45:21: error: 'use_detector' was not declared in this scope
   45 |                 if (use_detector(m2)==i+1){
      |                     ^~~~~~~~~~~~