feat(content): hidden test cases

backend/data/questions/bricks-falling-when-hit.yaml

@@ -10,6 +10,24 @@ patterns:
   - union-find
   - matrix-traversal
 
+function_signature: "def hit_bricks(grid: list[list[int]], hits: list[list[int]]) -> list[int]:"
+
+test_cases:
+  visible:
+    - input: { grid: [[1, 0, 0, 0], [1, 1, 1, 0]], hits: [[1, 0]] }
+      expected: [2]
+    - input: { grid: [[1, 0, 0, 0], [1, 1, 0, 0]], hits: [[1, 1], [1, 0]] }
+      expected: [0, 0]
+  hidden:
+    - input: { grid: [[1]], hits: [[0, 0]] }
+      expected: [0]
+    - input: { grid: [[1, 1, 1], [0, 1, 0], [0, 0, 0]], hits: [[0, 1]] }
+      expected: [1]
+    - input: { grid: [[1, 0, 1], [1, 1, 1]], hits: [[0, 0], [1, 1]] }
+      expected: [0, 3]
+    - input: { grid: [[1, 1], [1, 1]], hits: [[0, 0]] }
+      expected: [0]
+
 description: |
   You are given an `m x n` binary `grid`, where each `1` represents a brick and `0` represents an empty space. A brick is **stable** if: