palindrome-linked-list
Submit solution
Points:
1
Time limit:
30.0s
Memory limit:
250M
Problem type
Allowed languages
Python
Given the head of a singly linked list, return true if it is a palindrome or false otherwise.
Example 1:
Input: head = [1,2,2,1] Output: true
Example 2:
Input: head = [1,2] Output: false
Constraints:
The number of nodes in the list is in the range [1, 10⁵].
0 <= Node.val <= 9Follow up: Could you do it in O(n) time and O(1) space?
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