Additional test cases have been added.
I like this solution ! Simple and easy to read.
it took me quite a while to figure this one out.your coding thought keep stunning me.amazing idea!
Using forward&backward compare,don't see that before,awesome.
Prime factor digits
Factorize THIS, buddy
Back to basics 23 - Triangular matrix
Make a Star Pyramid
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
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