feat(content): function signatures + test cases

backend/data/questions/can-convert-string-in-k-moves.yaml

@@ -9,6 +9,30 @@ categories:
 patterns:
   - greedy
 
+function_signature: "def can_convert_string(s: str, t: str, k: int) -> bool:"
+
+test_cases:
+  visible:
+    - input: { s: "input", t: "ouput", k: 9 }
+      expected: true
+    - input: { s: "abc", t: "bcd", k: 10 }
+      expected: false
+    - input: { s: "aab", t: "bbb", k: 27 }
+      expected: true
+  hidden:
+    - input: { s: "a", t: "a", k: 0 }
+      expected: true
+    - input: { s: "a", t: "b", k: 0 }
+      expected: false
+    - input: { s: "a", t: "b", k: 1 }
+      expected: true
+    - input: { s: "ab", t: "ab", k: 100 }
+      expected: true
+    - input: { s: "aaa", t: "bbb", k: 53 }
+      expected: true
+    - input: { s: "abc", t: "abcd", k: 100 }
+      expected: false
+
 description: |
   Given two strings `s` and `t`, your goal is to convert `s` into `t` in `k` moves or less.