How to determine the number of palindromes in Python

How Python determines the palindrome number: First convert the array into a string; then set two pointers, one to traverse the string from left to right, and one to traverse from right to left. If you encounter two different pointers, In the case of equality, it is not a palindrome number until the two pointers are equal.

The operating environment of this tutorial: Windows 7 system, python version 3.9, DELL G3 computer.

How to determine the number of palindromes in python:

It’s very simple to solve using python

Two pointers, one traverses the string from left to right, One traverses from right to left. If two unequal situations are encountered, it will not be a palindrome until the two pointers are equal

Code implementation

class Solution:
    def isPalindrome(self, x: int) -> bool:
        s=str(x)
        l,r=0,s.__len__()-1
        while(l<=r):
            if s[l]==s[r]:
                l+=1
                r-=1
            else:return False
        return True

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