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Create 876. Middle of the Linked List.java

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	`1`	`+//fast and slow pointer`
	`2`	`+classSolution {`
	`3`	`+publicListNodemiddleNode(ListNodehead) {`
	`4`	`+ListNodeslow =head;`
	`5`	`+ListNodefast =head;`
	`6`	`+while (fast!=null &&fast.next!=null) {`
	`7`	`+fast =fast.next.next;`
	`8`	`+slow =slow.next;`
	`9`	`+ }`
	`10`	`+returnslow;`
	`11`	`+ }`
	`12`	`+}`

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