Hard Accuracy: 49.92%
Submissions: 35330 Points: 8
Given a singly linked list: A0→A1→…→An-1→An, reorder it to: A0→An→A1→An-1→A2→An-2→… For example: Given 1->2->3->4->5 its reorder is 1->5->2->4->3.
Note: It is recommended do this in-place without altering the nodes' values.
Example 1:
Input:
LinkedList: 1->2->3
Output: 1 3 2
Example 2:
Input:
LinkedList: 1->7->3->4
Output: 1 4 7 3.
Your Task:
The task is to complete the function reorderList() which should reorder the list as required. The reorder list is automatically printed by the driver's code.
Note: Try to solve without using any auxilliary space.
Expected Time Complexity: O(N) Expected Auxiliary Space: O(1)
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Avoid using static/global variables in your code as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases does not guarantee the correctness of code.
On submission, your code is tested against multiple test cases consisting of all
possible corner cases and stress constraints.
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
POTD
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