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.
Back to basics 21 - Matrix replicating
Compute a dot product of two vectors x and y
Find Index of maximum Value and maximum Value of a vector
The Bomb Problem
Return the Nth Output from an Input Command
Test if a Number is a Palindrome without using any String Operations
Generalized N-Cards Problem
Project Euler: Problem 16, Sums of Digits of Powers of Two
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