Time: 127 ms (8.51%), Space: 45.7 MB (13.23%) - LeetHub

Author: chau-nm

0125-valid-palindrome/0125-valid-palindrome.java

@@ -0,0 +1,19 @@
+class Solution {
+    public boolean isPalindrome(String s) {
+        String check = "";
+        for(int i = 0; i<s.length();i++){
+            if(Character.isLetterOrDigit(s.charAt(i))){
+                check += s.charAt(i);
+            }
+        }
+        check = check.toLowerCase();
+        int x = check.length()-1;
+        for(int i = 0; i<x; i++){
+            if(check.charAt(i)!=check.charAt(x)){
+                return false;
+            }
+            x--;
+        }
+        return true;
+    }
+}