Problem Statement

Given the head of a singly linked list and two positive integers left and right where left <= right, reverse all the nodes from the left to the right position, and return the updated list.

Examples

Example 1:

• Input: [7, 8, 9, 10, 11], left = 2, right = 4
• Expected Output: [7, 10, 9, 8, 11]
• Justification: The nodes from position 2 to 4 (8, 9, 10) are reversed to become 10, 9, 8.

Example 2:

• Input: [1, 2, 3, 4, 5, 6], left = 2, right = 5
• Expected Output: [1, 5, 4, 3, 2, 6]