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problem:
Reverse digits of an integer.
Example1: x = 123, return 321
Example2: x = -123, return -321
solution:逐个取数字; 处理溢出问题 (INT_MIN INT_MAX)
class Solution {
public:
int reverse(int x) {
long result=0;
while(x)
{
result=result*10+x%10;
if(result<INT_MIN||result>INT_MAX)
return 0;
x=x/10;
}
return result;
}
};
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原文地址:http://www.cnblogs.com/xiaoying1245970347/p/4581572.html