Create is valid parentheses

is-valid-parentheses.py

@@ -0,0 +1,45 @@
+"""
+Of course! Here's another coding exercise for you:
+
+Problem: Valid Parentheses
+
+Given a string containing only the characters '(', ')', '{', '}', '[' and ']',
+determine if the input string is valid. An input string is valid if:
+
+Open brackets are closed by the same type of brackets.
+Open brackets are closed in the correct order.
+Note:
+
+An empty string is also considered valid.
+Write a function called is_valid_parentheses that takes a string s as input and returns True if the input string is valid,
+and False otherwise.
+"""
+
+VALID_VALUES = [
+    "()",
+    "{}",
+    "[]"
+]
+
+def is_valid_parentheses(s: str) -> bool:
+    result = None
+
+    while result == None:
+        if len(s) == 0:
+            result = True
+            break
+        if not any(substr in s for substr in VALID_VALUES):
+            result = False
+            break
+
+        for substr in VALID_VALUES:
+            s = s.replace(substr, "")
+
+    return result
+
+print(is_valid_parentheses("()"))  # Output: True
+print(is_valid_parentheses("()[]{}"))  # Output: True
+print(is_valid_parentheses("{[()]}"))  # Output: True
+print(is_valid_parentheses("([)]"))  # Output: False
+print(is_valid_parentheses("{{{{"))  # Output: False
+print(is_valid_parentheses(""))  # Output: True