Shuffle an Array

• For the first num and the last num in the array, do they have the same "chance" to be switched?

• @MindGeek I'm not super sure that I understand your question. However, if you can convince yourself that the brute force analysis is correct, it might help to think about how Fisher-Yates is actually almost identical to it. Essentially, after the ith iteration of the swapping loop, `array[:i]` (inclusive) is the result (so far) of the algorithm, while `array[i+1:]` is the "hat", or `aux` from the brute force solution.

• I have a question about "we generate a random integer between the current index and the last index of the array" . Can we use a random integer within the range of 0 and the current index+1. i.e. rand.nextInt(i+1) in the shuffle method?? @emptyset Is there any advantage of using current index and the last index of the array? Like mathematicaly?

• @PremiumLab_ There is no mathematical difference. It is possible that one method is superior by a constant factor due to some low-level CPU reason, but certainly not significantly.

• In the second solution for reset, shouldn't we return array instead of original? We did that in the first solution, but why differently in second solution?

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