box-o-sand/sorting.rb

13 lines
196 B
Ruby

def insertion_sort(a)
(0..(a.length - 1)).each do |j|
key = a[j]
i = j - 1
while (i >= 0) && (a[i] > key)
a[i + 1] = a[i]
i = i - 1
end
a[i + 1] = key
end
end