a(1) = 0
a(2) = 1
a(2*N) = sqrt(a(2*N-1)*a(2*N+1))
a(2*N+1) = (a(2*N)+a(2*N+2))/2
given n return a(n)
The two recursion equations are mixed up.
Back and Forth Rows
Replicate elements in vectors
Center of mass
Negation the hard way
Too Many Zeros, Dump Them!
Calculate the Damerau-Levenshtein distance between two strings.
Pernicious Anniversary Problem
Which permutation is it?
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