title: 'Swift LeetCode 系列之 7: Reverse Integer'date: 2017-07-21 10:31:48tags:
class Solution {
func reverse(_ x: Int) -> Int {
var result = 0
var remain = x
if x == 0 {
return 0
}
while(remain != 0){
result = remain % 10 + 10 * result
remain = remain / 10
if (result < Int32.min || result > Int32.max) {
return 0
}
}
return result
}
}