leetcode-go/easy/3.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
}