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Create 0143-reorder-list.swift

Solved leetcode 143. Reorder List for Swift

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	`1`	`+import DequeModule`
	`2`	`+`
	`3`	`+classSolution{`
	`4`	`+func reorderList(_ head:ListNode?){`
	`5`	`+varqueue=Deque<ListNode>()`
	`6`	`+varcurr= head`
	`7`	`+while curr!=nil{`
	`8`	`+ queue.append(curr!)`
	`9`	`+ curr= curr!.next`
	`10`	`+}`
	`11`	`+varlastNode:ListNode?`
	`12`	`+while !queue.isEmpty{`
	`13`	`+letleftNode= queue.popFirst()`
	`14`	`+letrightNode= queue.popLast()`
	`15`	`+ rightNode?.next=nil`
	`16`	`+ leftNode?.next= rightNode`
	`17`	`+ lastNode?.next= leftNode`
	`18`	`+ lastNode= rightNode`
	`19`	`+}`
	`20`	`+}`
	`21`	`+}`

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