leetcode/src/featuredTop/LeetCode7.java at master · codinglin/leetcode · GitHub

21 lines (20 loc) · 565 Bytes

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

package featuredTop;

public class LeetCode7 {

public int reverse(int x) {

int res = 0;

while (x != 0){

int temp = x % 10;

//判断是否大于最大32位整数

if (res>214748364 || (res==214748364 && temp>7)) {

return 0;

}

//判断是否小于最小32位整数

if (res<-214748364 || (res==-214748364 && temp<-8)) {

return 0;

}

res = res * 10 + temp;

x = x / 10;

}

return res;

}

}