Return the largest int from an array of numerical strings

largest

#! /usr/bin/env ruby

# Author: Yoochan Seo
# Email: [email protected]
# If you want this program executable,
# `chmod 755 largest`

=begin
  ./largest 99, 997, 101, 2, 33 # execute this program and pass your value
  
  Your input... ["99,", "997,", "101,", "2,", "33"]
  Max array... [99997, 997101, 2101, 332]
  The largest is 997101
=end

require "rubygems"
require "thor"

class Largest < Thor

  desc "parse", "Make the largest int from the input"

  def self.parse(input)
    puts "Your input... #{input}"
    calculate
  end

  def self.calculate
    str_set = ARGV
    int_set = str_set
    int_set.map!(&:to_i)
    max_sort = []

    int_set.each_with_index do |v, i|
      num1 = v
      num2 = int_set[i+1]
      if num2
        maybe_max1 = "#{num1}#{num2}".to_i
        maybe_max2 = "#{num2}#{num1}".to_i
        if maybe_max1 > maybe_max2
          max_sort << maybe_max1
        elsif maybe_max1 == maybe_max2
          max_sort << maybe_max1
        else
          max_sort << maybe_max2
        end
      end
    end

    puts "Max array... #{max_sort}"
    max = max_sort.max
    puts "The largest is #{max}"
    max

  end

  default_task :parse
end

Largest.parse(ARGV)

install ruby and thor gem to run this program as cli