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mattmanning/interview.rb

Created August 2, 2012 00:14
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interview.rb
class Array
def inc(val)
map {|e| e + val}
end
end
def add1(arr, val, n)
case n <=> 0
when 0
arr.inc(val)
when 1
arr[0..(n-1)].inc(val) + arr[n..-1]
when -1
arr[0..(n-1)] + arr[(n)..-1].inc(val)
end
end
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