solved day5 and rubocopd

day05/input.sample

@@ -0,0 +1,28 @@
+47|53
+97|13
+97|61
+97|47
+75|29
+61|13
+75|53
+29|13
+97|29
+53|29
+61|53
+97|53
+61|29
+47|13
+75|47
+97|75
+47|61
+75|61
+47|29
+75|13
+53|13
+
+75,47,61,53,29
+97,61,53,29,13
+75,29,13
+75,97,47,61,53
+61,13,29
+97,13,75,29,47

day05/solution1.rb

@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'pry'
+
+# ifile = 'input.sample'
+ifile = 'input'
+input = File.readlines(ifile).map(&:strip).reject(&:empty?)
+
+updates, rules = input.partition { _1.match?(',') }
+rules.map! { _1.split('|').map(&:to_i) }
+updates.map! { _1.split(',').map(&:to_i) }
+
+updates.select! do |update|
+  update.combination(2).map do |pair|
+    rule = rules.select { _1.include?(pair[0]) and _1.include?(pair[1]) }.flatten
+    next if rule.empty?
+
+    rule == pair
+  end.all?
+end
+solution = updates.map { |update| update[update.size / 2] }.sum
+# binding.pry
+puts solution

day05/solution2.rb

@@ -0,0 +1,44 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'pry'
+
+def bubble_sort(array, rules)
+  return array if array.size <= 1
+
+  swap = true
+  while swap
+    swap = false
+    (array.length - 1).times do |x|
+      rule = rules.select { _1.include?(array[x]) and _1.include?(array[x + 1]) }.flatten
+      if rule != [array[x], array[x + 1]]
+        array[x], array[x + 1] = array[x + 1], array[x]
+        swap = true
+      end
+    end
+  end
+  array
+end
+
+# ifile = 'input.sample'
+ifile = 'input'
+input = File.readlines(ifile).map(&:strip).reject(&:empty?)
+
+updates, rules = input.partition { _1.match?(',') }
+rules.map! { _1.split('|').map(&:to_i) }
+updates.map! { _1.split(',').map(&:to_i) }
+
+updates.reject! do |update|
+  update.combination(2).map do |pair|
+    rule = rules.select { _1.include?(pair[0]) and _1.include?(pair[1]) }.flatten
+    next if rule.empty?
+
+    rule == pair
+  end.all?
+end
+
+updates.map! { |update| bubble_sort(update, rules) }
+
+solution = updates.map { |update| update[update.size / 2] }.sum
+# binding.pry
+puts solution