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.
Summing Digits within Text
Make one big string out of two smaller strings
Make an awesome ramp for a tiny motorcycle stuntman
Find Index of maximum Value and maximum Value of a vector
Test if two numbers have the same digits
Return the 'Size' of a String of Code
Great Circle Distance
Multiples of a Number in a Given Range
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