palindrome-number
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Points:
1
Time limit:
30.0s
Memory limit:
250M
Problem type
Allowed languages
Python
Given an integer x, return true if x is a palindrome, and false otherwise.
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?
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