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Grokking the Coding Interview Patterns in C#

Intersection of Two Linked Lists

Explore how to identify the intersection node of two singly linked lists by applying the two-pointer technique. Understand the problem constraints and implement an efficient solution to solve common linked list problems in coding interviews.

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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 ...