I'm a newb to c++ and I don't want to start off with bad practices (I came from vb). Heres a little temp. conversion program I made. Tell me what you think.

Code:
#include <iostream>

int selection;
int number;

int ftoc(int number)
{
	return((number-32)*(1.8));
}

int ctof(int number)
{
	return((1.8*number)+32);
}
int main()
{
	std::cout << "Welcome to the Fahrenheit/Celsius Conversion Utility! \n";
	std::cout << "Please choose a number: \n";
	std::cout << "	[1] Fahrenheit to Celsius\n";
	std::cout << "	[2] Celsius to Fahrenheit\n";
	std::cin >> selection;
	std::cout << "Please enter the number to be converted: \n";
	std::cin >> number;
	switch(selection)
	{
		case 1:
			std::cout << "Result: " << ftoc(number) << "\n";
			break;
		case 2:
			std::cout << "Result: " << ctof(number) << "\n";
			break;
		default:
			std::cout << "Please choose either 1 or 2.\n";
			break;
	}
	return 0;
}
Anything look bad here? I know about the truncated integer variable. I figure this is for temperature conversion so I don't need the precision. I also received this warning from the compiler:
"warning: no new line at end of file"
Any idea what this means?

Thanks.