제출 #126484

#제출 시각아이디문제언어결과실행 시간메모리
126484chubyxdxd커다란 상품 (IOI17_prize)C++11
20 / 100
89 ms380 KiB
#include "prize.h" #include <bits/stdc++.h> using namespace std; int find_best(int n) { vector<int> v; int i=1; int low=0,hi=n,mid; int j=(hi+low)/2; while(i<=500){ low=0; hi=n; while(hi-low>1) { v.clear(); mid=j; v=ask(mid); if(v[0]==0 and v[1]==0){ return mid; break; } if(v[0]<v[1]){ low=mid; } else{ hi=mid; //j=low+hi/2; } j=(low+hi)/2; } i++; v=ask(j); if(v[0]==0 and v[1]==0){ return j; } v.clear(); } return mid; }

컴파일 시 표준 에러 (stderr) 메시지

prize.cpp: In function 'int find_best(int)':
prize.cpp:8:17: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int low=0,hi=n,mid;
                 ^~~
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