missing_numbers.rb

#First submission
def missingNumbersOne(arr, brr)
    # Complete this function
    result = []
    arr.each do |x|
        brr.delete_at(brr.find_index(x))
    end
    brr.sort.uniq
end

#Second submission
def missingNumbersTwo(arr, brr)
    sums = Array.new(100, 0)
    min = brr.min
    arr.each do |x|
        sums[x-min] -= 1
    end
    brr.each do |x|
        sums[x-min] += 1
    end
    results =[]
    sums.each_with_index do | x, i |
         results << i+min if x > 0
    end
    results
end