Day 2

2023/day2/p1.rb

@@ -0,0 +1,34 @@
+MAX_COLOURS = {
+  "red" => 12,
+  "green" => 13,
+  "blue" => 14
+}
+
+res = 0
+File.foreach("./2023/day2/data") do |line|
+  data = line.split(" ")
+  game_num = data[1][0..data[1].length-2].to_i
+  full_game_arr = line.split(":")[1].split(";")
+
+  is_valid_game = true
+  full_game_arr.each do |game|
+    count = {
+      "red" => 0,
+      "green" => 0,
+      "blue" => 0
+    }
+
+    game_round_arr = game.split(",")
+    game_round_arr.each do |el|
+      inner_color_dat = el.split(" ")
+      count[inner_color_dat[1].gsub(",", "")] += inner_color_dat[0].to_i
+    end
+    if count["red"] > MAX_COLOURS["red"] or count["green"] > MAX_COLOURS["green"] or count["blue"] > MAX_COLOURS["blue"]
+      is_valid_game = false
+    end
+  end
+  if is_valid_game
+    res += game_num
+  end
+end
+puts res