Solution for Day 02

day_02/first.rb

@@ -0,0 +1,8 @@
+input = File.readlines('./input')
+
+a = input.map do |pwl|
+  matches = pwl.match /(?<start>\d+)-(?<end>\d+) (?<char>\w): (?<pw>\w+)/
+  matches[:pw].count(matches[:char]).between? matches[:start].to_i, matches[:end].to_i
+end
+puts a.count(true)
+