[2024][ruby][7.2]

5 days ago · cd7ed1621b
parent 485fe6be3b
commit cd7ed1621b
1 changed files with 5 additions and 3 deletions
--- a/2024/ruby/day_07.rb
+++ b/2024/ruby/day_07.rb
@ -6,9 +6,11 @@ input = DATA.readlines
 pp input.filter_map {|val, vars|
  vals = vars.inject {|n,x|
-    %i[ + * ].flat_map {|op|
+    Array(n).flat_map {[
-      Array(n).map { _1.send(op, x) }
+      _1 + x,
-    }
+      _1 * x,
      "#{_1}#{x}".to_i,
    ]}
  }
  vals.include?(val) && val
 }.sum