- Linked List: 23 → 89 → 10 → 5 → 67 → 39 → 70 → 28 → null
n = 40
Updated Linked List:
Exception in thread “main” java.lang.NullPointerException
at RemoveNthNode.removeNthLastNode(main.java:10)
at RemoveNthNode.main(main.java:46)
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Hello @Rishabh_Purwar,
The compiler is throwing a null pointer exception because there doesn’t exist any node at n = 40. The total number of nodes in the given linked list is 8. It’s worth noting that the test case violates a problem constraint, as it is specifically mentioned that the total number of nodes in the list is k, and k is always greater or equal to n which is the nth node that we want to remove from the linked list.
To resolve this issue, you should adjust the value of n to fall within the valid range of nodes in the linked list, which is from 1 to 8.
I hope this clarifies the concern you raised about the problem. If you have any suggestions or feedback, please feel free to share. We are here to assist you.
Happy learning!