Cassido's interview question for week of 5/26/19 - Implement integer division

division.rb

=begin
Integer dvision for a / b
@param a first number
@param b second number
@return a / b
=end
def divide(a, b)
    sign = (a < 0) ^ (b < 0) ? -1 : 1
    a = a.abs
    b = b.abs
    count = 0
    while a >= b
        a -= b
        count += 1
    end
    return count * sign
end
p divide(-15, -15)
p divide(5, 10)
p divide(10, 2)