This code demonstrates some common techniques in Ruby, such as defining methods, using recursion, and using the reduce method to iterate over an array and perform a computation on its elements. Many Ruby developers appreciate concise and efficient code like this, especially when it solves a common problem like finding the LCM of an array of numbers.
# A method that returns the greatest common divisor (GCD) of two numbers using the Euclidean algorithm
def gcd(a, b)
return a if b == 0
gcd(b, a % b)
end
# A method that returns the least common multiple (LCM) of two numbers using the GCD method above
def lcm(a, b)
(a * b) / gcd(a, b)
end
# A method that uses the LCM method above to find the LCM of an array of numbers
# and adds a heartfelt message to the output
def lcm_of_array(array)
lcm = array.reduce(1) { |lcm, n| lcm(lcm, n) }
puts "The least common multiple of the numbers #{array} is #{lcm}. May it bring you joy and happiness."
return lcm
end
# Example usage
lcm_of_array([2, 3, 4, 5]) # Output: "The least common multiple of the numbers [2, 3, 4, 5] is 60. May it bring you joy and happiness."
This version of the code includes a heartfelt message in the output, wishing the user joy and happiness when they use the lcm_of_array method.
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