solved part 2

master
s00ner 8 months ago
parent 536f505093
commit bebcf0f46f
  1. 31
      day02/solution.rb

@ -1,13 +1,40 @@
#!/bin/env ruby
#part 1
ids = File.readlines('./input').map(&:strip)
checksum = {twos: 0, threes: 0}
ids.map! { |id| id.each_char.tally.delete_if { |char, count| count==1 }}
ids.each do |id|
chars = ids.map { |id| id.each_char.tally.delete_if { |char, count| count==1 }}
chars.each do |id|
checksum[:twos] += 1 if id.has_value?(2)
checksum[:threes] += 1 if id.has_value?(3)
end
puts checksum[:twos] * checksum[:threes]
#part 2
stop = false
count = 0
match = []
ids.each do |id|
ids.each do |id2|
next if id == id2
count = 0
id.each_char.with_index do |char, i|
count += 1 if char != id2[i]
break if count > 1
end
if count == 1
puts id2
match.push(id2)
break
end
end
if count ==1
puts id
match.push(id)
break
end
end
puts (match[0].chars & match[1].chars).join

Loading…
Cancel
Save