Stop using C-style casts (like (int) and (float)) in C++ code. Use fabs when you need a floating point absolute function. Break complex formulas down into many steps, you don't gain any efficiency by doing it all on one line.
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.