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Grokking the Coding Interview Patterns

Intersection of Two Linked Lists

Explore how to identify if two singly linked lists intersect and return their intersection node using the two pointers method. Understand the problem constraints and implement an efficient solution through hands-on practice.

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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 ...