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Reverse digits of an integer.
Example1: x = 123, return 321
Example2: x = -123, return -321
题意:将数字反转
思路:注意要判断溢出就是了
class Solution {
public:
int reverse(int x) {
long long ans = 0;
while (x) {
ans = ans * 10 + (x % 10);
x /= 10;
}
if (ans > INT_MAX)
ans = 0;
if (ans < INT_MIN)
ans = 0;
return ans;
}
};
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原文地址:http://blog.csdn.net/u011345136/article/details/42487337