Oracle Interview Question for Software Engineer / Developers


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Interview Type: In-Person




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1
of 1 vote

By knowing that the node to be removed is in the middle of the linked list we can deduce that there is another node after the current node (which we want to remove). So instead of removing the current node, we'll just set its data to the data of the next node and remove the next node (by setting the next of the current node to the next of the next node).

public static <T> void removeMiddleNode(ListNode<T> node){
		if ((node==null) || (node.next()==null)){return;}
		
		ListNode<T> nextNode = node.next();
		node.setData(nextNode.data());
		node.setNext(nextNode.next());
	}

Complexity: O(1) run-time.

- IvgenyNovo January 28, 2014 | Flag Reply
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0
of 0 votes

Agree with you. but in your code you forgot to remove the next node.

- .·´¯`·.´¯`·.¸¸.·´¯`·.¸><(((º> January 28, 2014 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

The garbage collector will remove the next node.

- IvgenyNovo January 28, 2014 | Flag
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0
of 0 vote

public static void deleteMe(LNode me){
        	if(me.next == null) return; // If it is the last element of the list, this cannot be deleted
        	if(me.next.next == null){
        		me.value = me.next.value;
        		me.next = null;
        	}else{
			 while(me.next.next != null){
			 	me.value = me.next.value;
			 	me = me.next;
			 }
			 me.next = null;
		}
        }

- .·´¯`·.´¯`·.¸¸.·´¯`·.¸><(((º> January 28, 2014 | Flag Reply


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