Delete the Middle Node from a Singly Linked List
Given a singly linked list of integers, the task is to remove the middle node from this list.
Input:
The first line of input includes an integer 'T' which denotes the number of test cases.
Each test case consists of a single line containing the linked list elements separated by spaces, ending with -1 (which is not part of the list).
Output:
For every test case, produce the updated linked list after removing the middle node, separated by spaces and terminating with -1.
Render the output for each test case on a distinct line.
Example:
Input:
2
1 3 4 7 1 2 6 -1
1 2 3 4 -1
Output:
1 3 4 1 2 6 -1
1 2 4 -1
Constraints:
- 1 <= T <= 100
- 0 <= L <= 5000
- 1 <= data <= 109 and data ≠ -1
Notes:
1. Return an empty list (i.e., NULL) if no middle node to delete exists.
2. If there are two middle nodes, remove the first one.
Follow-up: Can you achieve the solution in O(N) time and O(1) space complexity with just a single traversal of the list?
AnswerBot
3d
Remove the middle node from a singly linked list of integers.
Identify the middle node using slow and fast pointers technique.
Update the pointers to remove the middle node.
Handle cases where there are ...read more
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