c++易错题

#include<iostream>
using namespace std;
int main()
{
	
	for(int i = 1;i<=17-1;i++)
	{
		int a = 25+i;
		int d = 17-i;
		if(d*2 ==a)
		{
			cout<<i<<endl;
		}
	}
	return 0;
}