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Swap Nodes in Pairs

Description

Flashcards on Swap Nodes in Pairs, created by Suhas S on 17/02/2018.

Flashcards by Suhas S, updated more than 1 year ago

	Created by Suhas S almost 8 years ago

Resource summary

Question	Answer
Swap Nodes in Pairs	public ListNode swapPairs(ListNode head) { if(head == null \|\| head.next == null) return head; ListNode n = head.next; head.next = swapPairs(head.next.next); n.next = head; return n; }

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