Nice problem! Per Solution 1536525 I think you can safely increase the number of iterations in the Test Suite to 1000 or 2000. You could also add a second case, identical to the first except choosing L randomly. —DIV
Tip. This is called Game of Nim. https://en.wikipedia.org/wiki/Nim
How to find the position of an element in a vector without using the find function
Back to basics 9 - Indexed References
Make a random, non-repeating vector.
Golomb's self-describing sequence (based on Euler 341)
Numbers on 7-segment
Calculate mean value of any pair in a vector.
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