migrate 392 questions to pattern format

2025-09-10 18:05:55 +01:00
parent fe59de3392
commit 0c43a4a95d
402 changed files with 1383 additions and 545 deletions
--- a/backend/data/questions/binary-tree-preorder-traversal.yaml
+++ b/backend/data/questions/binary-tree-preorder-traversal.yaml
@@ -8,8 +8,10 @@ categories:
  - stack
  - recursion
 patterns:
-  - tree-traversal
-  - dfs
+  - slug: tree-traversal
+    is_optimal: true
+  - slug: dfs
+    is_optimal: false

 function_signature: "def preorder_traversal(root: TreeNode) -> list[int]:"