Sorting algorithms/Counting sort: Difference between revisions

=={{header|Ruby}}==

<lang ruby>class Array

def countingsort!

do_countingsort!(min, max)

end

protected

def do_countingsort!(min, max)

count = Array.new(max - min + 1, 0)

each {|number| count[number - min] += 1}

z = 0

min.upto(max) do |i|

while count[i - min] > 0

self[z] = i

z += 1

count[i - min] -= 1

end

end

self

end

end

ary = [9,7,10,2,9,7,4,3,10,2,7,10,2,1,3,8,7,3,9,5,8,5,1,6,3,7,5,4,6,9,9,6,6,10,2,4,5,2,8,2,2,5,2,9,3,3,5,7,8,4]

ary.countingsort!.join(",")

# => "1,1,2,2,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,5,5,5,5,5,5,6,6,6,6,7,7,7,7,7,7,8,8,8,8,9,9,9,9,9,9,10,10,10,10"</lang>