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glguy · Dec 19, 2023 · eb0d5ab · eb0d5ab
1 parent 56c2640
commit eb0d5ab
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/solutions/src/2023/19.hs b/solutions/src/2023/19.hs
@@ -41,11 +41,12 @@ import Data.Map qualified as Map
 
 -- | A part is a quadruple of parameters indexed by 'V'
 data Part a = Part a a a a
-  deriving (Functor, Foldable, Traversable)
+  deriving (Functor, Foldable, Traversable, Show)
 
 -- | 'V' is an index into a field of a 'Part'
 data V = Vx | Vm | Va | Vs
 
+-- | Less-than and greater-than comparison operators for the workflow rules.
 data O = O_LT | O_GT
 
 -- | 'Ints' is a range of 'Int' with an inclusive lower bound and exclusive upper bound.