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

PalindromeNumber.cs

public class Solution {
    public bool IsPalindrome(int x) {
        
        if(x<0){
            return false;
        }
        int rev = 0;
        int temp = x;
        while(temp>0){
            
            rev = rev*10 + temp%10;
            temp = temp/10;
            
        }
        
        if(x == rev){
            return true;
        }
        return false;
        
    }
}