It seems a little unfair to just jump to the conclusion that the problem is C, with basically no evidence of that. The multitude of "do" states did look confusi

It seems a little unfair to just jump to the conclusion that the problem is C, with basically no evidence of that. The multitude of "do" states did look confusing to me too, but without reading the code I can't say for sure that it's actually bad, and I definitely can not say why it became bad.