Arrays Linked Lists Questions Medium
To find the intersection of two sorted linked lists, we can use a two-pointer approach.
First, we initialize two pointers, one for each linked list, pointing to their respective heads.
Then, we iterate through both linked lists simultaneously, comparing the values at the current positions of the pointers.
If the values are equal, it means we have found an intersection. We can store this value in a separate result linked list or array.
If the value in the first linked list is smaller, we move the pointer of the first linked list to the next node.
If the value in the second linked list is smaller, we move the pointer of the second linked list to the next node.
We continue this process until we reach the end of either linked list or until we have found all the intersections.
Finally, we return the result linked list or array containing the intersection elements.
This approach has a time complexity of O(m + n), where m and n are the lengths of the two linked lists, as we iterate through both lists only once.