X639: refernceValueNode

Consider the following class definition:
   class Link{
      Object data;
      Link next;
   }
List L has a reference p to the first node. Write code that returns a reference to the first node in the list containing data that equals to a passed parameter (otherwise return null) . Make sure to account for edge cases!

Initial Setup Final Configuration

Examples:

refernceValueNode(Link.CreateList(1,2,3,4),3) -> Link.CreateList(3,4)

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