It's all about functionality.
Cheating is allowed but not required
Return a list sorted by number of occurrences
random picture with random colours
Construct a string from letters and counts
Back to basics 22 - Rotate a matrix
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Back to the future II
Obtain the Bitcoin address associated to a given private key
Back to the future
Now! (Anticheating version 1)
Become the leader
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