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Kelly Souza Whiteboard2 #21

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Kelly Souza Whiteboard2 #21

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31 changes: 31 additions & 0 deletions whiteboard2.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
def mirror(arr)
i = arr.length
arr.length.times do
arr << arr[i-1]
i -= 1
end
print arr
end

mirror([1,2,3])
mirror([1,2,3,4])
mirror([-1, -2, 3, -4])
mirror([0])


def switchPairs(array)
i = 0
(array.length)/2.times do
one = array[i]
two = array[i+1]
array[i] = two
array[i+1] = one
i += 2
end
puts array
end


switchPairs(["four", "score", "and", "seven", "years", "ago"])
puts "===================="
switchPairs(["four", "score", "and", "seven", "years", "ago", "lincoln"])