LeetCode--Reverse Integer

Reverse Integer## [更多技术博客 http://vilins.top/](http://vilins.top/)题目Given a 32-bit signed integer, reverse digits of an integer.Example 1:Input: 123 Output: 321Example 2:Input: -123 Output: -321Example 3:Input: 120 Output: 21Note:Assume we are dealing with an environment which 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.分析这里主要掌握判断32bits溢出的方法。源码class Solution { public: int reverse(int x) { long long result 0; while(x ! 0) { int n x%10; x x/10; result 10*result n; //cout n endl; } return (result INT_MIN || result INT_MAX) ? 0 : result; } };## [更多技术博客 http://vilins.top/](http://vilins.top/)