Linked list problems addition in Algorithms.

[saiumasankar]

In the Linked-list MD file. The concept of linked list is explained but some problems need to be added. It helps in learning solving problems related to linked-list. I would like to add problems like :

• Fast and slow pointer approach (Also known as Tortoise-rabbit method) to detect loop in linked-list.
• Deletion of node consists of given value ( I explain the easy approach to solve this problem).
• Merging the two sorted linked lists into single linked list.

I will also mention the problem links from platforms like Leetcode. So it is useful to test their understanding by solving the problems. Please assign the issue to me.

[saiumasankar]

I am very sorry if I happen to cross any rules or regulations. Please give me the reason of why violation is tagged. I will make sure to not repeat it again.