How do you find the intersection of two linked lists in Java?

How do you find the intersection of two linked lists in Java?

Take two linked lists with data and pointer to the next node. A function commonPoint(listnode*headA, listnode*headB) takes two pointers of linked list respectively and returns the value of the common or intersection point of the linked list.

How do you intersect two linked lists?

Have a visited flag with each node. Traverse the first linked list and keep marking visited nodes. Now traverse the second linked list, If you see a visited node again then there is an intersection point, return the intersecting node.

What is intersection of linked lists?

A simple solution is to consider each node of the first list and check if it can be reached from the second list. The first node in the first list that is reachable from the second list is the intersection point.

Is it a possible to produce union of two linked lists?

Union of two linked lists can be found by using merging the lists in a sorted manner. The intersection of the two lists can be found by only taking common elements while merging the two lists.

How do you find the common element in two linked lists?

Find the common nodes in two singly linked list

1. Examples:
2. Naive Approach: Compare every node of list A with every node of list B. If the node is a match then increment the count and return count after all the nodes get compared.

How would you traverse a linked list in O n1 2?

Algorithm

1. STEP 1: SET PTR = HEAD.
2. STEP 2: IF PTR = NULL.
3. STEP 4: REPEAT STEP 5 AND 6 UNTIL PTR != NULL.
4. STEP 5: PRINT PTR→ DATA.
5. STEP 6: PTR = PTR → NEXT.
6. STEP 7: EXIT.

How do you find the sum of two linked lists using stack in Java?

Algorithm: The formal steps of this algorithm are as following:

1. Create stack ‘s1’ by pushing all node values of the first linked list to a stack.
2. Create stack ‘s2’ by pushing all node values of the second linked list to a stack.
3. Create an empty stack ‘s3’ to store the result of addition.
4. Initialize sum and carry to 0.

Why is linked list used?

Linked lists are linear data structures that hold data in individual objects called nodes. Linked lists are often used because of their efficient insertion and deletion. They can be used to implement stacks, queues, and other abstract data types.

What is the disadvantage of singly linked list?

1) It requires more space as pointers are also stored with information. 2) Different amount of time is required to access each element. 3) If we have to go to a particular element then we have to go through all those elements that come before that element. 4) we can not traverse it from last & only from the beginning.

Is it possible to find a loop in a linked list?

A loop exists in a LinkedList when no NULL is reached as we traverse throughout the LinkedList. So in order to detect whether a LinkedList has a loop or not, we can traverse through the LinkedList and add each Node to the HashSet of visited notes if it’s been visited for the first item.

Which sorting algorithm is easily adaptable to singly linked lists?

Merge sort is often preferred for sorting a linked list. The slow random-access performance of a linked list makes some other algorithms (such as quicksort) perform poorly, and others (such as heapsort) completely impossible.