FilesExpand file tree

 master

/

Solution.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

40 lines (38 loc) · 1.04 KB

 master

/

Solution.java

Copy path

Top

File metadata and controls

• Code
• Blame

40 lines (38 loc) · 1.04 KB

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

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

package leetcode._86_;

import leetcode.common.ListNode;

/**

* Definition for singly-linked list.

* public class ListNode {

* int val;

* ListNode next;

* ListNode(int x) { val = x; }

* }

*/

class Solution {

public ListNode partition(ListNode head, int x) {

if (head == null || head.next == null) {

return head;

}

ListNode fakeHeader = new ListNode(0);

fakeHeader.next = head;

ListNode curr = fakeHeader;

ListNode cutPoint = null;

while (curr.next != null) {

if (curr.next.val >= x) {

if (cutPoint == null) {

cutPoint = curr;

}

curr = curr.next;

} else if (cutPoint != null) {

ListNode node = curr.next;

curr.next = node.next;

node.next = cutPoint.next;

cutPoint.next = node;

cutPoint = node;

} else {

curr = curr.next;

}

}

return fakeHeader.next;

}

}