Palindrome Number C语言

Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward.

Example 1:

Input: 121
Output: true

Example 2:

Input: -121
Output: false
Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.

Example 3:

Input: 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.

Follow up:

Coud you solve it without converting the integer to a string

代码： bool isPalindrome(int x) {     int sum=0,k=x;     if(x<0)         return false;     else     {         while(x!=0)         {            sum=sum*10+x%10;              x=x/10;         }     }     if(k==sum)         return true;     else         return false; }