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Deleting node with single pointer Linked List


In this post, we will discuss a simple method to delete a node when we have only the pointer of the node to be deleted and no link to the head or tail node.
Deleting node with the only pointer to that node is one of the famous and very easy interview questions and is asked a lot.
The method we use can be used for both simple or doubly linked list. To delete the given node, we can use the following method

Algorithm:
  1. Let the node to be deleted be called as the current node.
  2. Create a temp node to point to the next node.
  3. Now copy the contents of the temp node to the current node.
  4. copy the link field of the temp node to the link field of the current node.
  5. delete or free the memory pointer by the temp node.
delete a node from the Linked List image


C++ Program

Sample input and output to check the program


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