feat(content): function signatures + test cases

backend/data/questions/average-salary-excluding-minimum-and-maximum.yaml

@@ -9,6 +9,26 @@ categories:
 patterns:
   - greedy
 
+function_signature: "def average(salary: list[int]) -> float:"
+
+test_cases:
+  visible:
+    - input: { salary: [4000, 3000, 1000, 2000] }
+      expected: 2500.0
+    - input: { salary: [1000, 2000, 3000] }
+      expected: 2000.0
+  hidden:
+    - input: { salary: [6000, 5000, 4000, 3000, 2000, 1000] }
+      expected: 3500.0
+    - input: { salary: [8000, 9000, 2000, 3000, 6000, 1000] }
+      expected: 4750.0
+    - input: { salary: [48000, 59000, 99000, 13000, 78000, 45000, 31000, 17000, 39000, 37000, 93000, 77000, 33000, 28000, 4000, 54000, 67000, 6000, 1000, 11000] }
+      expected: 41111.11111111111
+    - input: { salary: [1000, 1001, 1002] }
+      expected: 1001.0
+    - input: { salary: [100000, 200000, 300000] }
+      expected: 200000.0
+
 description: |
   You are given an array of **unique** integers `salary` where `salary[i]` is the salary of the i<sup>th</sup> employee.