Raimonds Simanovskis rsim
rsim
/ ranking.rb
Created
March 14, 2010 13:36
— forked from mattetti/ranking.rb
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| def rank(arr) | |
| count = {} | |
| arr.each{|item| count[item] = (count[item]||0) + 1} | |
| rank = 1 # initial ranking | |
| ranking = {} | |
| count.keys.sort.reverse.each{|item| ranking[item] = rank; rank += count[item]} | |
| arr.map{|item| ranking[item]} | |
| end | |