Use string interpolation in 2024 day 19 part 1

$ needed to be escaped.
sim642 · Dec 19, 2024 · 48436d1 · 48436d1
1 parent 0e4fe48
commit 48436d1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/scala/eu/sim642/adventofcode2024/Day19.scala b/src/main/scala/eu/sim642/adventofcode2024/Day19.scala
@@ -11,7 +11,7 @@ object Day19 {
 
   def patternsRegex(patterns: Seq[Towel]): Regex = {
     val one = patterns.mkString("|")
-    ("^(" + one + ")*$").r // TODO: why s"..." doesn't work?
+    s"^($one)*$$".r
   }
 
   def countPossibleDesigns(input: Input): Int = {