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LeetCode: Reverse Integer 解题报告

2014-12-14 08:25 323 查看
Reverse Integer

Reverse digits of an integer.

Example1: x = 123, return 321
Example2: x = -123, return -321

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public class Solution {
public int reverse(int x) {
long ret = 0;

while (x != 0) {
ret = ret * 10 + x % 10;
x /= 10;
}

if (ret > Integer.MAX_VALUE || ret < Integer.MIN_VALUE) {
return 0;
}

return (int)ret;
}
}


View Code

[b]GITHUB

https://github.com/yuzhangcmu/LeetCode_algorithm/blob/master/math/Reverse.java
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