Fix demo function by adding missing arguments and correcting syntax errors in test cases

Author: ianlintner

src/interview_workbook/leetcode/sliding_window/subarray_product_less_than_k.py

@@ -28,7 +28,7 @@ def solve(self, *args):
 
 def demo():
     """Run a simple demonstration for Subarray Product Less Than K."""
-    nums =
+    nums = [10, 5, 2, 6]
     k = 100
     result = Solution().solve(nums, k)
     return f"Input: nums={nums}, k={k} -> Count of subarrays: {result}"

tests/test_leetcode_car_fleet.py

@@ -10,16 +10,16 @@ class TestSolution:
     def test_example_cases(self):
         """Test with provided examples."""
         solution = Solution()
-        assert solution.solve(12,,) == 3
-        assert solution.solve(10,,) == 1
-        assert solution.solve(100,,) == 1
+        assert solution.solve(12, [10, 8, 0, 5, 3], [2, 4, 1, 1, 3]) == 3
+        assert solution.solve(10, [3], [3]) == 1
+        assert solution.solve(100, [0, 2, 4], [4, 2, 1]) == 1
 
     def test_edge_cases(self):
         """Test edge cases."""
         solution = Solution()
         assert solution.solve(10, [], []) == 0
-        assert solution.solve(20,,) == 3
-        assert solution.solve(10,,) == 1
+        assert solution.solve(20, [6, 2, 12], [3, 1, 3]) == 3
+        assert solution.solve(10, [6, 8], [3, 2]) == 1
 
     def test_large_input(self):
         """Test with larger inputs."""