feat(content): function signatures + test cases

backend/data/questions/24-game.yaml

@@ -10,6 +10,28 @@ categories:
 patterns:
   - backtracking
 
+function_signature: "def judge_point24(cards: list[int]) -> bool:"
+
+test_cases:
+  visible:
+    - input: { cards: [4, 1, 8, 7] }
+      expected: true
+    - input: { cards: [1, 2, 1, 2] }
+      expected: false
+  hidden:
+    - input: { cards: [8, 3, 8, 3] }
+      expected: true
+    - input: { cards: [1, 1, 1, 1] }
+      expected: false
+    - input: { cards: [1, 5, 5, 5] }
+      expected: true
+    - input: { cards: [3, 3, 8, 8] }
+      expected: true
+    - input: { cards: [1, 9, 1, 2] }
+      expected: true
+    - input: { cards: [1, 1, 7, 7] }
+      expected: false
+
 description: |
   You are given an integer array `cards` of length `4`. You have four cards, each containing a number in the range `[1, 9]`. You should arrange the numbers on these cards in a mathematical expression using the operators `['+', '-', '*', '/']` and the parentheses `'('` and `')'` to get the value 24.