[2024][ruby][17.2] refactored

2024/ruby/day_17.rb

@@ -96,21 +96,21 @@ end
 
 pp run(27334280).to_a.join(?,)
 
-TARGET = "2412750317415530".chars.map(&:to_i)
+def solve(a, target)
-def solve(a)
   return [a] if a.size == 16
 
   (0..7)
     .map { a + [_1] }
     .select {|a|
-      TARGET.reverse[0,a.size].zip(
+      target.reverse[0,a.size].zip(
         run(a.join.ljust(14, ?0).to_i(8)).to_a.reverse
       ).all? { _1 == _2 }
-    }.flat_map { solve(_1) }
+    }.flat_map { solve(_1, target) }
 end
 
-pp solve([]).map(&:join).map { _1.to_i(8) }.min
+a = solve([], program).map(&:join).map { _1.to_i(8) }.min
-pp run(190615597431823).to_a == program
+pp a
+pp run(a).to_a == program
 
 __END__
 Register A: 27334280