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Palindrome Number

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Palindrome Number

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

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

Examples

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-.

Example 3:

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

제약 조건

-2^31 <= x <= 2^31 - 1
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