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TEST_S = <<-TEST
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TEST
def elves_food(input_str)
return input_str.split(/^$/).map do
|elf_rations|
elf_rations.strip.split("\n").map(&:to_i)
end
end
def calories_by_elf(input_str)
elves_food(input_str).map(&:sum)
end
def max_calories(input_str)
calories_by_elf(input_str).max
end
def top_3_calories(input_str)
calories_by_elf(input_str).sort.reverse.take(3).sum
end
def day1
File.open('day1.txt') do |f|
input_str = f.read
puts "part1: #{max_calories(input_str)}"
puts "part2: #{top_3_calories(input_str)}"
end
end
day1()
#puts elves_food(TEST_S)
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