Additional test cases have been added.
liuliu:you "regexp" everything,everywhere? LOL
Is it a number?
Flip the bit
Determine if input is a perfect number
Successive zeros (harder)
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Project Euler: Problem 14 Longest Collatz sequence(harder version)
Determine if input is a Narcissistic number
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