Wouldn't it be easy to just randomly choose a prefix from a cache ?
Putting the probabilities aside, it's easy to deterministically generate all possible prefixes, and to classify them into weight categories.
With all prefixes separated by weight it's also easy to randomly choose one, given a weight.
Yes, but the issue is that I will pass in a weight range for an object, not a prefix. the total of prefix, all prefix2, plus and suffix is the weight of the object. and that needs to be in the given range
"Worry is like a rocking chair. It gives you something to do, but it doesn't get you anywhere."
sorry, now reading my reply again made me realize I used 'prefix' to describe 2 different things.
I meant generate all possible combinations, classify those combinations by weight and, given a weight range, randomly choose from this 'combination pool'