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.
Most nonzero elements in row
Find relatively common elements in matrix rows
Remove white space from the string
Replace Vector Elements
The sum of the numbers in the vector
Television Screen Dimensions
Make an N-dimensional Multiplication Table
N-Dimensional Array Slice
English to Pig Latin Translator
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