feat(content): function signatures + test cases

backend/data/questions/angle-between-hands-of-a-clock.yaml

@@ -8,6 +8,28 @@ categories:
 patterns:
   - greedy
 
+function_signature: "def angle_clock(hour: int, minutes: int) -> float:"
+
+test_cases:
+  visible:
+    - input: { hour: 12, minutes: 30 }
+      expected: 165.0
+    - input: { hour: 3, minutes: 30 }
+      expected: 75.0
+    - input: { hour: 3, minutes: 15 }
+      expected: 7.5
+  hidden:
+    - input: { hour: 12, minutes: 0 }
+      expected: 0.0
+    - input: { hour: 6, minutes: 0 }
+      expected: 180.0
+    - input: { hour: 1, minutes: 57 }
+      expected: 76.5
+    - input: { hour: 4, minutes: 50 }
+      expected: 155.0
+    - input: { hour: 9, minutes: 0 }
+      expected: 90.0
+
 description: |
   Given two numbers, `hour` and `minutes`, return *the smaller angle (in degrees) formed between the hour and the minute hand*.