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LC-Palindrome Number
Palindrome Number
Question
Given an integer x, return true if x is a palindrome, and false otherwise.
Input: x = 121
Output: true
Explanation: 121 reads as 121 from left to right and from right to left.
class Solution {
public boolean isPalindrome(int x) {
if(x<0) return false;
if(x%10==0&& x!=0) return false;
int res=0;
while(x>res){
res=res*10+x%10;
x/=10;
}
return res/10==x||res==x;
}
}