ruby - Map a ranking over an array of positive scores -


i have list of positive scores:

[98.5, 85, 50, 50, 23, 0, 0, 0]

i assign ranks these scores:

[1, 2, 3, 3, 4, 5, 5, 5]

when 2 consecutive scores have same value, same rank. idea how solve in functional fashion?

(posted in haskell , ruby because think both solutions feasible , can ported)

in ruby:

a = [98.5, 85, 50, 50, 23, 0, 0, 0] sorted = a.sort.uniq.reverse a.map{|e| sorted.index(e) + 1} # => [1, 2, 3, 3, 4, 5, 5, 5]

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