Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand
Nice trick with the 222.2 - very clever!
Return the 3n+1 sequence for n
Calculate the Levenshtein distance between two strings
Determine if a Given Number is a Triangle Number
Replace multiples of 5 with NaN
Given a 4x4 matrix, swap the two middle columns
Project Euler: Problem 16, Sums of Digits of Powers of Two
Read a Soroban Abacus
N-Dimensional Array Slice
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