feat(content): function signatures + test cases

backend/data/questions/last-stone-weight-ii.yaml

@@ -9,6 +9,30 @@ categories:
 patterns:
   - dynamic-programming
 
+function_signature: "def last_stone_weight_ii(stones: list[int]) -> int:"
+
+test_cases:
+  visible:
+    - input: { stones: [2, 7, 4, 1, 8, 1] }
+      expected: 1
+    - input: { stones: [31, 26, 33, 21, 40] }
+      expected: 5
+  hidden:
+    - input: { stones: [1] }
+      expected: 1
+    - input: { stones: [1, 1] }
+      expected: 0
+    - input: { stones: [1, 2] }
+      expected: 1
+    - input: { stones: [1, 2, 3] }
+      expected: 0
+    - input: { stones: [100, 100, 100] }
+      expected: 100
+    - input: { stones: [1, 1, 1, 1, 1] }
+      expected: 1
+    - input: { stones: [10, 20, 30, 40] }
+      expected: 0
+
 description: |
   You are given an array of integers `stones` where `stones[i]` is the weight of the i<sup>th</sup> stone.