feat(content): hidden test cases

backend/data/questions/check-if-a-string-can-break-another-string.yaml

@@ -9,6 +9,30 @@ categories:
 patterns:
   - greedy
 
+function_signature: "def check_if_can_break(s1: str, s2: str) -> bool:"
+
+test_cases:
+  visible:
+    - input: { s1: "abc", s2: "xya" }
+      expected: true
+    - input: { s1: "abe", s2: "acd" }
+      expected: false
+    - input: { s1: "leetcodee", s2: "interview" }
+      expected: true
+  hidden:
+    - input: { s1: "aaa", s2: "aaa" }
+      expected: true
+    - input: { s1: "a", s2: "z" }
+      expected: true
+    - input: { s1: "zzz", s2: "aaa" }
+      expected: true
+    - input: { s1: "ab", s2: "ba" }
+      expected: true
+    - input: { s1: "acb", s2: "bca" }
+      expected: true
+    - input: { s1: "xyz", s2: "abc" }
+      expected: true
+
 description: |
   Given two strings: `s1` and `s2` with the same size, check if some permutation of string `s1` can break some permutation of string `s2` or vice-versa. In other words `s2` can break `s1` or vice-versa.