9. Palindrome Number
class Solution:
def isPalindrome(self, x: int) -> bool:
s = str(x)
l, r = 0, len(s)-1
while l < r:
if s[l] != s[r]:
return False
l += 1
r -= 1
return True- convert the number to a string and use a two-pointers approach from either end to check if the string is a palindrome.
Categories:: string, two-pointers