Improvement: Reuse result of binomial coefficients call #192
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This is a minor improvement for three tests ("offline sampling", "online sampling" and "random subset"). Although it doesn't make a big difference, one could reuse the already calculated value
totalPossibleOutcomes. This avoids one unnecessary function call and improves slightly the readability of the code.Context: while working on https://github.com/stefantds/go-epi-judge I got to look at some Java test code a bit closer. I've found some small potential improvements. I am opening a separate PR for each. Please have a look if there is something that can be improved.