division.rb

gistfile1.txt

# implement division without using multiplication or division operators.
# return the result and the remainder.

# this implementation uses addition for the sum
def divide(number, divisor)

    count = 0
    sum = 0

    while sum <= (number - divisor)
        sum += divisor
        count += 1
    end

    result = count
    remainder = number - sum

    return [result, remainder].inspect
end


# this implementation uses subtraction for the sum, is simpler
def divide(number, divisor)

    count = 0
    sum = number

    while sum >= divisor
        sum -= divisor
        count += 1
    end

    result = count
    remainder = sum

    return [result, remainder]
end



puts divide(10, 3)
puts divide(12, 3)
puts divide(20, 5)
puts divide(342534, 16)