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Reverse a Linked List

EasyP1Coding

Given the head of a singly linked list, reverse the list and return the new head.

A list node has val and next. The classes ListNode (JavaScript, TypeScript, Python) are already defined for you.

Example 1

Input
head = [1,2,3,4,5]
Output
[5,4,3,2,1]

Example 2

Input
head = [1,2]
Output
[2,1]

Example 3

Input
head = []
Output
[]

Constraints

  • The number of nodes is in the range [0, 5000].
  • -5000 <= Node.val <= 5000

Hints

Run checks the 3 visible tests, Submit all 6.