clanker: test-veet (run)

problems/medium/valid-parentheses/solution.py

@@ -0,0 +1,37 @@
+"""
+Valid Parentheses
+
+You're building a syntax checker for a code editor. Before running
+any code, the editor needs to verify that all brackets are properly
+matched and nested. Given a string containing only parentheses,
+square brackets, and curly braces, determine if the input is valid.
+
+A string is valid if:
+    - Open brackets are closed by the same type of bracket
+    - Open brackets are closed in the correct order
+    - Every close bracket has a corresponding open bracket
+
+Example 1:
+    Input: s = "([]){}"
+    Output: True
+    Explanation: All brackets are properly matched and nested
+
+Example 2:
+    Input: s = "([)]"
+    Output: False
+    Explanation: The square bracket closes before the parenthesis
+
+Example 3:
+    Input: s = "{{"
+    Output: False
+    Explanation: Opening braces are never closed
+
+Constraints:
+    - 0 <= len(s) <= 10^4
+    - s consists only of characters '(){}[]'
+"""
+
+
+def is_valid(s: str) -> bool:
+    """Return True if the bracket string is valid, False otherwise."""
+    pass  # Your implementation here