gistfile1.rb

def mode(array)
  #Hash.new is good here because the 0 is default for blank values
  hash = Hash.new(0)
  #Just use an array literal
  max = []

  array.each {|x| hash[x] += 1 }
  
  
  hash.select do |key, value| 
    #i wouldn't name block local variables the same as other locals it can get confusing
    hash[key].to_i == array[x].to_i
    hash.values
  end
end

def mode(array)
  hash = Hash.new(0)
  grouped_hash = array.
    reduce(hash) do |hash, value| 
      hash[value] += 1
      hash
    end
  max_occurence = grouped_hash.values.max
  grouped_hash.select{ |k, v| v == max_occurence }.keys
end