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fix bug in Levenshtein distance calculation

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Bug was discovered and discussed in #18395.
This commit is contained in:
schneems 2015-02-25 12:58:49 -06:00
parent 71fc789239
commit 6f0a69c589
1 changed files with 0 additions and 2 deletions
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2
guides/rails_guides/levenshtein.rb
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@ -7,11 +7,9 @@ module RailsGuides
t = str2
n = s.length
m = t.length
max = n/2
return m if (0 == n)
return n if (0 == m)
return n if (n - m).abs > max
d = (0..m).to_a
x = nil