[leetcode-in-go] 0009-Palindrome Number

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

Example 1:

Input: 121
Output: true

Example 2:

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

Follow up:

Coud you solve it without converting the integer to a string?

参考实现（不转换为字符串）

func isPalindrome(x int) bool {
	if x < 0 {
		return false
	}
	origin := x
	revert := 0
	for x != 0 {
		revert = revert*10 + x%10
		x = x / 10
	}
	return revert == origin
}