leetcode-go/leetcode/easy/9.go

package main

func isPalindrome(x int) bool {
	// -1 --> -1-, impossible
	if x < 0 {
		return false
	}
	// judge if reverse(x) == x
	res, y := 0, x
	for ; x != 0; x /= 10 {
		res = res*10 + x%10
	}
	return res == y
}