제출 #611408

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
611408		Shithila	커다란 상품 (IOI17_prize)	C++14	20 / 100	82 ms	296 KiB

prize

#include "prize.h"

int find_best(int n) {
	int start=0;
	int end=n-1;
	int found=false;
	while(found==false)
	{
		int check=start+end;
		check=check/2;
		std::vector<int> res = ask(check);
		if(res[0]==0 && res[1]==0)
		{
			return check;
			found==true;
		}
		else if(res[0]==1)
		{
			end=check;
		}
		else if(res[1]==1)
		{
			start=check;
		}
		if(start==end-1)
		{
			if(check==start)
			{
				return end;
				found==true;
			}
			else
			{
				return start;
				found==true;
			}
		}
	}
}

컴파일 시 표준 에러 (stderr) 메시지

prize.cpp: In function 'int find_best(int)':
prize.cpp:15:9: warning: statement has no effect [-Wunused-value]
   15 |    found==true;
      |    ~~~~~^~~~~~
prize.cpp:30:10: warning: statement has no effect [-Wunused-value]
   30 |     found==true;
      |     ~~~~~^~~~~~
prize.cpp:35:10: warning: statement has no effect [-Wunused-value]
   35 |     found==true;
      |     ~~~~~^~~~~~
prize.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
   39 | }
      | ^

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80