Add second solution for 9. Palindrome Number. (Tahanima#98)

Author: jabertuhin

Algorithms/Easy/9_PalindromeNumber/SolutionOne.py

@@ -0,0 +1,14 @@
+class Solution:
+    def isPalindrome(self, x: int) -> bool:
+        x_str = str(x)
+        left_idx = 0        
+        right_idx = len(x_str) - 1
+        
+        while left_idx < right_idx:
+            if x_str[left_idx] != x_str[right_idx]:
+                return False
+            
+            left_idx += 1
+            right_idx -= 1
+            
+        return True