In problem 102 (Ecological Bin Packing), however, things are clear as it states that:

I'm now up to question 103 (Stacking Boxes) and yet no bound is given on the size of the measurements. From glancing at the posts pertaining to this problem it looks safe to assume that the inputs will fit into a 32-bit int, but this is not stated in the problem. If we assume arbitrarily large inputs then the problem seems to get much more complicated.The total number of bottles will never exceed 2^31.

So what I'm getting at is if no bounds are given for a particular problem how are we supposed to handle the input? Do we assume that numbers will fit into 32-bit integers unless otherwise stated?