标签:style blog color io sp div on log ef
1、在进入while之前,保证x是非负的;
2、符号还是专门用flag保存
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3、另一思路:将integer转换成string,然后首位swap,直至中间;
1 class Solution: 2 # @return an integer 3 def reverse(self, x): 4 ret = 0 5 flag = 1 6 if x < 0: 7 flag = -1 8 x *= -1 9 while(x!=0): 10 ret = ret*10+x%10 11 x = x/10 12 return ret*flag
leetcode:Reverse Integer【Python版】
标签:style blog color io sp div on log ef
原文地址:http://www.cnblogs.com/CheeseZH/p/4033801.html