My go-to for learning new programming languages is project E. The problems progress very nicely, from simple loops to combinatorial search and beyond. But my fa

My go-to for learning new programming languages is project E. The problems progress very nicely, from simple loops to combinatorial search and beyond. But my favorite thing about it is it's all math. I can't really be bothered to solve someone's train routing problem, but you don't have to ask me twice to sum the factors of a 150 digit number.