Include .h or .cpp file?

You need to compile both main. Cpp and foo. Cpp and link the 2 resulting object files together.

You are failing to compile and/or link the Foo. Cpp file when you do your linking step. I'm not familiar with Code::Blocks though, so I can't tell you how to fix it.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.