Technical interview for a backend developer

archdaily-ruby-test.rb

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# Excercise 1: Words Count
Phrase.new("one fish two fish red fish blue fish").count
# => {"one"=>1, "fish"=>4, "two"=>1, "red"=>1, "blue"=>1}

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# Excercise 2: Acronyms
Acronym.call("hello, how are you?")
# => "H.H.A.Y"

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# Excercise 3: School grades
# Given students' names along with the grade that they are in, create a roster for the school.
# In the end, you should be able to:
# - Add a student's name to the roster for a grade
#   - "Add Jim to grade 2."
# - Get a list of all students enrolled in a grade
#   - "Which students are in grade 2?"
# - Get a sorted list of all students in all grades. Grades should sort as 1, 2, 3, etc., and students within a grade should be sorted alphabetically by name.
#   - "Who all is enrolled in school right now?"
#     - "Grade 1: Anna, Barb, and Charlie."
#     - "Grade 2: Alex, Peter, and Zoe."
#     - ...


class School
  def initialize
    @grades = {}
  end

  def add(name, grade_num)
  
  end

  def students(grade_num)
    
  end

  def students_by_grade
    
  end
end