maybe there's more than one task, but the task i took appeared to be completely specified (the one where you find a balance point - i may have remembered the name wrong - for an array, so that the sum of elements to either side is equal).

it wasn't obvious to me what to do on first read, but when i paid a little more attention, everything was there (including edge cases, as far as i could see). in particular, they gave a formal numerical expression that was unambiguous (and which didn't seem to contradict the text).