What am I allowed to pass into this function? a hash? a list? To me, player position by names sounds like a hash of name:position. Your code assumes the inp

What am I allowed to pass into this function? a hash? a list? To me, player position by names sounds like a hash of name:position. Your code assumes the input is in bat order, but doesn't say that anywhere (and how does that work with a hash?). This is why you need comments.