FilesExpand file tree

 master

/

Solution.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

17 lines (15 loc) · 485 Bytes

 master

/

Solution.java

Copy path

Top

File metadata and controls

• Code
• Blame

17 lines (15 loc) · 485 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

package leetcode._89_;

import java.util.ArrayList;

import java.util.List;

class Solution {

public List<Integer> grayCode(int n) {

List<Integer> result = new ArrayList<>();

result.add(0);

for (int i = 0; i < n; i++) {

for (int j = result.size() - 1; j >= 0; j--) { // 从尾部开始，用于保持连续（即每次只差一个bit位）

result.add(result.get(j) | 1 << i);

}

}

return result;

}

}