Question | Answer |
Odd Even Linked List Even nodes at the end Odd nodes at the beginning | public ListNode oddEvenList(ListNode head) { if (head != null) { ListNode odd = head, even = head.next, evenHead = even; while (even != null && even.next != null) { odd.next = odd.next.next; even.next = even.next.next; odd = odd.next; even = even.next; } odd.next = evenHead; } return head; |
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