산타는 없다

문제 원문 Given a 32-bit signed integer, reverse digits of an integer. Note:Assume we are dealing with an environment that could only store integers within the 32-bit signed integer range: [-2³¹, 2³¹ − 1]. For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows. Example 1: Input: x = 123 Output: 321 Example 2: Input: x = -123 Output: -321 Example 3: I..