Palindrome Number

Easy

Given an integer x, return true if x is a palindrome, and false otherwise.

Example 1

Input

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

Output

false

Explanation

Reads 01 from right to left. Therefore it is not a palindrome.

Constraints

-231 <= x <= 231 - 1

Hints:

Hint 1

Start with the straightforward approach, then optimize time or space if needed.

Author & Technical Reviewer

Technically reviewed by: ExamAdda Technical Review Team

Technical Reviewers, ExamAdda

Software engineers at ExamAdda who check every article's definitions, complexity claims and code examples before and after publishing.

Published

Jul 17, 2026

Last updated

Jul 20, 2026

Content Verification Methodology

Definitions and complexity claims were checked against authoritative computer-science references. Code examples were compiled and tested with standard, boundary and edge-case inputs.

Report a correction:editorial@examadda.org

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Input

Expected Output