[detect cycle && remove nth && reverse list recursive]

[takchiks]

No description provided.

[super30admin]

Your recursive solution for reversing the linked list is correct and well-implemented. The time complexity is optimal, and the code is readable. However, there are a few points to consider:

• The space complexity of the recursive solution is O(n) due to the recursion stack, which is higher than the iterative approach (O(1)). For the problem, both approaches are acceptable, but you should be aware of the trade-offs. For large lists, the recursive solution might risk stack overflow.

• You can simplify the code by eliminating the helper function. The main method reverseList can directly handle the recursion. For example:

  public ListNode reverseList(ListNode head) {
      if (head == null || head.next == null) return head;
      ListNode newHead = reverseList(head.next);
      head.next.next = head;
      head.next = null;
      return newHead;
  }

• The problem also encourages implementing both iterative and recursive solutions. Your solution only provides the recursive one. It would be beneficial to include the iterative solution as well to demonstrate both methods.

• The submission includes unrelated files (LinkedListCycle.java and RemoveNth.java). When solving a problem, ensure that you only submit the solution for the requested problem. This might cause confusion in an automated grading system.

Overall, your solution is correct for the recursive approach, but to fully meet the problem requirements, you should consider adding the iterative solution and ensure that only the relevant code is submitted.