제출 #209431

#제출 시각아이디문제언어결과실행 시간메모리
209431TAISA_커다란 상품 (IOI17_prize)C++14
컴파일 에러
0 ms0 KiB
#include "prize.h" #include <bits/stdc++.h> using namespace std; using P=pair<int,int>; /*vector<int> s; vector<int> ask(int id){ cout<<id<<endl; int a,b;cin>>a>>b; vector<int> res{a,b}; return res; }*/ int find_best(int n) { vector<int> a; vector<P> v(n,P(-1,-1)); int en=n; int cnt=0; int ma=0; for(int i=0;i<min(n,450);i++){ a=ask(i); ma=max(ma,a[0]+a[1]); v[i]=P(a[0],a[1]); if(a[0]+a[1]==0)return i; } while(1){ int ok=0,ng=en; while(ng-ok>1){ int mid=(ok+ng)/2; if(v[mid].first==-1){ a=ask(mid); v[mid]=P(a[0],a[1]); if(a[0]+a[1]==0)return i; } if(v[mid].second==cnt){ if(v[mid].second+v[mid].first==ma){ ng=mid; }else{ ok=mid; } }else{ ok=mid; } } en=ok; cnt++; } return 0; } /*int main(){ int n;cin>>n; s.resize(n); for(int i=0;i<n;i++){ cin>>s[i]; } cout<<find_best(n)<<endl; }*/

컴파일 시 표준 에러 (stderr) 메시지

prize.cpp: In function 'int find_best(int)':
prize.cpp:31:28: error: 'i' was not declared in this scope
     if(a[0]+a[1]==0)return i;
                            ^