Fix defaultdict typehint and use default func args

1 files changed, 7 insertions, 7 deletions

diff --git a/2021/12/puzzles.py b/2021/12/puzzles.py
index 8cfc506..2194c49 100644
--- a/2021/12/puzzles.py
+++ b/2021/12/puzzles.py
@@ -3,24 +3,24 @@
 from collections import defaultdict
 
 
-def solve(paths: defaultdict[list[str]], path: str) -> int:
+def solve(paths: defaultdict[list[str]], path: str, flag: bool = False) -> int:
 	acc = 0
-	tokens = path[0].split(",")
+	tokens = path.split(",")
 
 	for dest in paths[tokens[-1]]:
 		if dest == "end":
 			acc += 1
 		# START PART 1
 		elif not (dest.islower() and dest in tokens):
-			acc += solve(paths, (f"{path[0]},{dest}", False))
+			acc += solve(paths, f"{path},{dest}")
 		# END PART 1 START PART 2
 		elif dest != "start":
 			if dest.islower() and dest in tokens:
-				if path[1]:
+				if flag:
 					continue
-				acc += solve(paths, (f"{path[0]},{dest}", True))
+				acc += solve(paths, f"{path},{dest}", True)
 			else:
-				acc += solve(paths, (f"{path[0]},{dest}", path[1]))
+				acc += solve(paths, f"{path},{dest}", flag)
 		# END PART 2
 
 	return acc
@@ -34,7 +34,7 @@ def main() -> None:
 			paths[x].append(y)
 			paths[y].append(x)
 
-	print(solve(paths, ("start", False)))
+	print(solve(paths, "start", False))
 
 
 if __name__ == "__main__":