migrate 392 questions to pattern format

2025-09-10 18:05:55 +01:00
parent 91e48f5239
commit 0ee388c420
402 changed files with 1383 additions and 545 deletions
--- a/backend/data/questions/construct-binary-tree-from-preorder-and-inorder-traversal.yaml
+++ b/backend/data/questions/construct-binary-tree-from-preorder-and-inorder-traversal.yaml
@@ -8,8 +8,10 @@ categories:
  - arrays
  - hash-tables
 patterns:
-  - dfs
-  - tree-traversal
+  - slug: dfs
+    is_optimal: true
+  - slug: tree-traversal
+    is_optimal: false

 function_signature: "def build_tree(preorder: list[int], inorder: list[int]) -> TreeNode | None:"