Problem: A A class octopus has a dummy head which has four pointers left, right, top and bottom. You have to build link list in these 4 directions depending on the input commands. There will be four types of commands -L, R, T and B. Their specifications are given below: L x: insert x in the left link list Rx: insert x in the right link list Tx: insert x in the top link list Bx: insert x in the bottom link list // Where x is an integer number. Input: Test case will start with a number n indicating the number of lines following it. Output: you have to give output that which link list (Left, Right, Top and Bottom) has maximum sum of values. See the sample input and output.
Types of Linked List
A sequence of data elements connected through links is called a linked list (LL). The elements of a linked list are nodes containing data and a reference to the next node in the list. In a linked list, the elements are stored in a non-contiguous manner and the linear order in maintained by means of a pointer associated with each node in the list which is used to point to the subsequent node in the list.
Linked List
When a set of items is organized sequentially, it is termed as list. Linked list is a list whose order is given by links from one item to the next. It contains a link to the structure containing the next item so we can say that it is a completely different way to represent a list. In linked list, each structure of the list is known as node and it consists of two fields (one for containing the item and other one is for containing the next item address).
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