import java.util.*;
/*
* public class ListNode {
* int val;
* ListNode next = null;
* public ListNode(int val) {
* this.val = val;
* }
* }
*/
public class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
* @param head ListNode类
* @return ListNode类
*/
public ListNode oddEvenList (ListNode head) {
if(head == null){
return null;
}
ListNode temp = head;
ListNode a = head.next;
ListNode next = head.next;
while(temp != null && next != null){
temp.next = next.next;
if(temp.next != null){
temp = temp.next;
}
if(temp != null){
next.next = temp.next;
}
next = next.next;
// write code here
}
temp.next = a;
return head;
}}
/*
* public class ListNode {
* int val;
* ListNode next = null;
* public ListNode(int val) {
* this.val = val;
* }
* }
*/
public class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
* @param head ListNode类
* @return ListNode类
*/
public ListNode oddEvenList (ListNode head) {
if(head == null){
return null;
}
ListNode temp = head;
ListNode a = head.next;
ListNode next = head.next;
while(temp != null && next != null){
temp.next = next.next;
if(temp.next != null){
temp = temp.next;
}
if(temp != null){
next.next = temp.next;
}
next = next.next;
// write code here
}
temp.next = a;
return head;
}}