LeetCode Reverse Integer
2016-04-06 10:07
330 查看
Reverse digits of an integer.
Example1: x = 123, return 321
Example2: x = -123, return -321
Example1: x = 123, return 321
Example2: x = -123, return -321
/**
* 翻转整数,注意溢出.
* Created by ustc-lezg on 16/4/6.
*/
public class Solution {
public static void main(String[] args) {
System.out.println(reverse(1534236469));
}
public static int reverse(int x) {
long res = 0;
while (x != 0) {
res = res * 10 + x % 10;
if (res > Integer.MAX_VALUE || res < Integer.MIN_VALUE) {
return 0;
}
x /= 10;
}
return (int)res;
}
}
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