Daily Coding Email Challenge 2

dcp1.rb

puts 'Daily Coding Challenge 1'
puts 'Given a list of numbers and a number k, return whether any two numbers from the list add up to k.'

input = [10, 15, 3, 7]
k = 17

puts "input = #{input.to_s}"
puts "k = #{k}"

input.each_with_index do |num, i|
    # remainder is the number we want to find exists in the array
    remainder = k - num

    if input.include?(remainder) and input.index(remainder) != i 
        puts 'Found Answer: '
        puts "#{num} (index #{i}) + #{remainder} (index #{input.index(remainder)}) == #{k}"
    end

end