feat(content): hidden test cases

backend/data/questions/reorganize-string.yaml

@@ -11,6 +11,26 @@ patterns:
   - greedy
   - heap
 
+function_signature: "def reorganize_string(s: str) -> str:"
+
+test_cases:
+  visible:
+    - input: { s: "aab" }
+      expected: "aba"
+    - input: { s: "aaab" }
+      expected: ""
+  hidden:
+    - input: { s: "a" }
+      expected: "a"
+    - input: { s: "aa" }
+      expected: ""
+    - input: { s: "ab" }
+      expected: "ab"
+    - input: { s: "aabb" }
+      expected: "abab"
+    - input: { s: "aaabb" }
+      expected: "ababa"
+
 description: |
   Given a string `s`, rearrange the characters of `s` so that any two adjacent characters are not the same.