Swap Nodes in Pairs
Explore how to swap every two adjacent nodes in a singly linked list by modifying node links without altering node values. Understand the in-place technique that achieves this with linear time and constant space. This lesson helps you master efficient linked list manipulations applicable in coding interviews.
We'll cover the following...
We'll cover the following...
Statement
Given a singly linked list, swap every two adjacent nodes of the linked list. After the swap, return the head of the linked list.
Note: Solve the problem without modifying the values in the list’s ...