ZZULIOJ 1076:三位数求解

# include <iostream>
# include <iomanip>
using namespace std;
int main()
{
	int x, y, z, n, f = 0;
	cin>>n;
	for(x = 1; x <= 9 ; x++)
	{
		for(y = 1; y <= 9; y++)
		{
			for(z = 0; z <= 9; z++)
			{
				if((x*100+y*10+z) + (y*100+z*10+z) == n)
				{
					f = 1;
					cout<<setw(4)<<x<<setw(4)<<y<<setw(4)<<z;
				}
			}
		}
	}
	if(f == 0)
	{
		cout<<"No Answer";
	}
	return 0;
}