feat(content): function signatures + test cases

backend/data/questions/check-if-numbers-are-ascending-in-a-sentence.yaml

@@ -8,6 +8,26 @@ categories:
 patterns:
   - two-pointers
 
+function_signature: "def are_numbers_ascending(s: str) -> bool:"
+
+test_cases:
+  visible:
+    - input: { s: "1 box has 3 blue 4 red 6 green and 12 yellow marbles" }
+      expected: true
+    - input: { s: "hello world 5 x 5" }
+      expected: false
+    - input: { s: "sunset is at 7 51 pm overnight lows will be in the low 50 and 60 s" }
+      expected: false
+  hidden:
+    - input: { s: "a 1 b 2 c 3" }
+      expected: true
+    - input: { s: "1 2 3 4 5" }
+      expected: true
+    - input: { s: "5 4 3 2 1" }
+      expected: false
+    - input: { s: "a 10 b 20" }
+      expected: true
+
 description: |
   A sentence is a list of **tokens** separated by a **single** space with no leading or trailing spaces. Every token is either a **positive number** consisting of digits `0-9` with no leading zeros, or a **word** consisting of lowercase English letters.