Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in JavaScript

Solution: Intersection of Two Linked Lists

Understand how to find the intersection node of two singly linked lists by using the two pointers approach. This lesson teaches you to traverse both lists efficiently, align pointers without knowing the lengths, and identify the shared node or return null if no intersection exists.

We'll cover the following...

Statement

You are given the heads of two singly linked lists, headA and headB, to determine whether the two lists intersect. If they intersect, return the node where the intersection begins. Otherwise, return NULL.

Note: Linked lists intersect if they share a common node in memory, not just a node with the same value.

Constraints:

  • 1≤1 ≤ node.val ≤105≤ 10^5

  • The number of nodes of listAlistA is in the mm ...