Solution for Day 02

day_02/second.rb

@@ -0,0 +1,9 @@
+input = File.readlines('./input')
+
+a = input.map do |pwl|
+  matches = pwl.match /(?<start>\d+)-(?<end>\d+) (?<char>\w): (?<pw>\w+)/
+  matches[:pw].chars.values_at(matches[:start].to_i-1, matches[:end].to_i-1).count(matches[:char])
+end
+puts a.inspect
+puts a.count(1)
+