Time: 68 ms (55.44%), Space: 14.4 MB (57.15%) - LeetHub

Author: vinija

125-valid-palindrome/125-valid-palindrome.py

@@ -0,0 +1,11 @@
+class Solution:
+    def isPalindrome(self, s: str) -> bool:
+        if not s:
+            return False
+        s = s.replace(" ", "")
+        s = s.lower()
+        r = ""
+        for x in s:
+            if x.isalnum():
+                r += x
+        return r == r[::-1]