本蒻的代码:

#include<iostream>
using namespace std;
int main()
{
	int res,times=1,left=1,right=1000000000,mid=(left+right)/2;
	do
	{
		printf("%d",mid);
		scanf("%d",res);
		if(res==0)
		{
			return 0;
		}
		else if(res==1)
		{
			right=mid-1;
		}
		else if(res==-1)
		{
			left=mid+1;
		}
		fflush(stdout);
		mid=(left+right)>>1;
		times++;
	}while(left<=right);
	return 0;
}

莫名其妙拿了TLE...

哪位大佬能帮一下忙?