Beginner Programming Challenge #9

[CuracaoThe]

Written in Ruby

def read_from_file(path)
  lines = IO.readlines(path) {|l| l.chomp}
end

lines = read_from_file("collector.txt")
numbers_sum = 0
letters = {}

lines.each do |line|
  if line =~ /^[a-z]$/
    key = line.chomp.to_sym
    letters[key] = 0 unless letters.keys.include?(key)
    letters[key] += 1
  end
  numbers_sum += line.to_i
end

puts "Sum = #{numbers_sum}"
letters.each do |k, v|
  puts "#{k} = #{v}"
end 

Source file:

~% cat collector.txt 
a
a
a
c
b
b
3
5
0
d
a
c
d
1
1
0
0
d
c 

Result of executing:

~% ruby collector.rb
Sum = 10
a = 4
c = 3
b = 2
d = 3