I didn't realize you could use that function with non-digits in your string. Suddenly, this problem is a whole lot easier. :-)
Return the largest number that is adjacent to a zero
Reverse the Words (not letters) of a String
Determine if input is a Narcissistic number
Make a vector of prime numbers
Community Problem 500!
The Hills Are Alive...
With apologies to William Blake
Rolling maximums above a threshold
Unique dice configurations
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