remove loop

day_01/2.rb

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 class Main
   def run
@@ -8,12 +9,12 @@ class Main
     $stdin.each_line do |line|
       direction, magnitude = line[0], line[1..].to_i
 
-      loop do
+      while magnitude > 0
         case direction
         when "R"
           current = (current + 1) % 100
         when "L"
-          current = (current - 1) % 100
+          current = (current - 1 + 100) % 100
         end
 
         if current == 0
@@ -21,7 +22,6 @@ class Main
         end
 
         magnitude -= 1
-        break if magnitude == 0
       end
     end