[2023][ruby][15.1]

2023/ruby/day_15.rb

@@ -0,0 +1,12 @@
+input = ARGF.read.strip.split(?,).map(&:chars)
+
+# part one
+p input.sum {|str|
+  current = 0
+  str.each do |c|
+    current += c.ord
+    current *= 17
+    current %= 256
+  end
+  current
+}