feat(content): function signatures + test cases

backend/data/questions/bag-of-tokens.yaml

@@ -11,6 +11,28 @@ patterns:
   - two-pointers
   - greedy
 
+function_signature: "def bag_of_tokens_score(tokens: list[int], power: int) -> int:"
+
+test_cases:
+  visible:
+    - input: { tokens: [100], power: 50 }
+      expected: 0
+    - input: { tokens: [200, 100], power: 150 }
+      expected: 1
+    - input: { tokens: [100, 200, 300, 400], power: 200 }
+      expected: 2
+  hidden:
+    - input: { tokens: [], power: 100 }
+      expected: 0
+    - input: { tokens: [100], power: 100 }
+      expected: 1
+    - input: { tokens: [100, 100, 100], power: 200 }
+      expected: 2
+    - input: { tokens: [71, 55, 82], power: 54 }
+      expected: 0
+    - input: { tokens: [26, 33, 59], power: 45 }
+      expected: 1
+
 description: |
   You start with an initial **power** of `power`, an initial **score** of `0`, and a bag of tokens given as an integer array `tokens`, where each `tokens[i]` denotes the value of the i<sup>th</sup> token.