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:
node.val
The number of nodes of
The number of nodes of
The main idea of the algorithm is to equalize the traversal paths of both lists without calculating their lengths. The intersection of two linked lists occurs at a node that is identical in memory for both lists, meaning all subsequent nodes from that point onward are shared. Because both lists share the same tail segment but may differ in their prefix lengths, the optimal ...
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:
node.val
The number of nodes of
The number of nodes of
The main idea of the algorithm is to equalize the traversal paths of both lists without calculating their lengths. The intersection of two linked lists occurs at a node that is identical in memory for both lists, meaning all subsequent nodes from that point onward are shared. Because both lists share the same tail segment but may differ in their prefix lengths, the optimal ...