Given a number, return the number of closed 'circles' in the base 10 numerical representation.
Note: the number 4 has no circles
8819 -> 5
Interpolating on a string (the ASCII values) is an interesting idea even though the long interpolation string could be reduced by subtracting '0', but at the expense of a "longer" solution.
Calculate the Levenshtein distance between two strings
Back to basics 21 - Matrix replicating
Set some matrix elements to zero
Create a Multiplication table matrix...
Generate pi using logarithm
The Dark Side of the Die
N-Dimensional Array Slice
Test if two numbers have the same digits
Guess the Coefficients!
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