304 North Cardinal St.
Dorchester Center, MA 02124

# Palindrome Number LeetCode Solution

## Problem – Palindrome Number LeetCode Solution

Given an integer `x`, return `true` if `x` is palindrome integer.

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

• For example, `121` is a palindrome while `123` is not.

Example 1:

``````Input: x = 121
Output: true
Explanation: 121 reads as 121 from left to right and from right to left.``````

Example 2:

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

Constraints:

• `-231 <= x <= 231 - 1`

Follow up: Could you solve it without converting the integer to a string?

## Palindrome Number LeetCode Solution in Java

``````public boolean isPalindrome(int x) {
if (x<0 || (x!=0 && x%10==0)) return false;
int rev = 0;
while (x>rev){
rev = rev*10 + x%10;
x = x/10;
}
return (x==rev || x==rev/10);
}
``````

## Palindrome Number LeetCode Solution in C++

``````class Solution {
public:
bool isPalindrome(int x) {
if(x<0|| (x!=0 &&x%10==0)) return false;
int sum=0;
while(x>sum)
{
sum = sum*10+x%10;
x = x/10;
}
return (x==sum)||(x==sum/10);
}
};
``````

## Palindrome Number LeetCode Solution in Python

``````class Solution:
# @param x, an integer
# @return a boolean
def isPalindrome(self, x):
if x < 0:
return False

ranger = 1
while x / ranger >= 10:
ranger *= 10

while x:
left = x / ranger
right = x % 10
if left != right:
return False

x = (x % ranger) / 10
ranger /= 100

return True
``````
##### Palindrome Number LeetCode Solution Review:

In our experience, we suggest you solve this Palindrome Number LeetCode Solution and gain some new skills from Professionals completely free and we assure you will be worth it.

If you are stuck anywhere between any coding problem, just visit Queslers to get the Palindrome Number LeetCode Solution

Find on Leetcode

##### Conclusion:

I hope this Palindrome Number LeetCode Solution would be useful for you to learn something new from this problem. If it helped you then don’t forget to bookmark our site for more Coding Solutions.

This Problem is intended for audiences of all experiences who are interested in learning about Data Science in a business context; there are no prerequisites.

Keep Learning!

More Coding Solutions >>

LeetCode Solutions

Hacker Rank Solutions

CodeChef Solutions