How does sizeof work? How can I write my own?

You haven't provided any meaningful details about what it is you want to do, so it is hard to figure out what you need.

Sizeof is a compiler built-in operator. It is evaluated at compile-time by the compiler, and there is no runtime code behind it. You cannot write your own.

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.