It involves deleting the last node of the list. It just need a few adjustments in the node pointers. This is the simplest operation among all. It involves deletion of a node from the beginning of the list. Based on the position of the node being deleted, the operation is categorized into the following categories. The Deletion of a node from a singly linked list can be performed at different positions. We need to skip the desired number of nodes in order to reach the node after which the new node will be inserted. It involves insertion after the specified node of the linked list. Different logics are implemented in each scenario. The new node can be inserted as the only node in the list or it can be inserted as the last one. It involves insertion at the last of the linked list. We just need to a few link adjustments to make the new node as the head of the list. It involves inserting any element at the front of the list. Based on the position of the new node being inserted, the insertion is categorized into the following categories. The insertion into a singly linked list can be performed at different positions. Ptr = (struct node *)malloc(sizeof(struct node *)) A list of all such operations is given below. There are various operations which can be performed on singly linked list. We can have as many elements we require, in the data part of the list. The last node in the list is identified by the null pointer which is present in the address part of the last node. The data part of every node contains the marks obtained by the student in the different subject. In the above figure, the arrow represents the links. In other words, we can say that each node contains only next pointer, therefore we can not traverse the list in the reverse direction.Ĭonsider an example where the marks obtained by the student in three subjects are stored in a linked list as shown in the figure. One way chain or singly linked list can be traversed only in one direction. Data part of the node stores actual information that is to be represented by the node while the link part of the node stores the address of its immediate successor. A node in the singly linked list consist of two parts: data part and link part. The number of elements may vary according to need of the program. Singly linked list can be defined as the collection of ordered set of elements. List grows as per the program's demand and limited to the available memory space. Sizing is no longer a problem since we do not need to define its size at the time of declaration.All the nodes of linked list are non-contiguously stored in the memory and linked together with the help of pointers. Linked list is the data structure which can overcome all the limitations of an array. Inserting any element in the array needs shifting of all its predecessors. All the elements in the array need to be contiguously stored in the memory.It is almost impossible to expand the size of the array at run time. Increasing size of the array is a time taking process.The size of array must be known in advance before using it in the program.However, Array has several advantages and disadvantages which must be known in order to decide the data structure which will be used throughout the program. Till now, we were using array data structure to organize the group of elements that are to be stored individually in the memory. We can store values of primitive types or objects in the singly linked list.Empty node can not be present in the linked list.
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