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.
Remove the small words from a list of words.
Back to basics 4 - Search Path
Find best domino orientation
05 - Vector Equations 1
07 - Common functions and indexing 2
Roll the Dice!
Number of 1s in the Binary Representation of a Number
Give the Shortest Path Through The Maze
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