OddEvenLinkedList
OddEvenLinkedList.java 源码
package datastructure.linkedlist.leetcode;
/**
* 奇偶链表
*/
public class OddEvenLinkedList {
public ListNode oddEvenList(ListNode head) {
if (head == null) {
return head;
}
ListNode evenHead = head.next;
ListNode odd = head, even = head.next;
while (even != null && even.next != null) {
odd.next = even.next;
odd = odd.next;
even.next = odd.next;
even = even.next;
}
odd.next = evenHead;
return head;
}
public class ListNode {
int val;
ListNode next;
ListNode() {}
ListNode(int val) { this.val = val; }
ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
}
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