How do you find the middle value of a linked list?

Find the middle of a given linked list

1. Method 1: Traverse the whole linked list and count the no. of nodes. Now traverse the list again till count/2 and return the node at count/2.
2. Method 2: Traverse linked list using two pointers. Move one pointer by one and the other pointers by two.

How do you find the element of a linked list?

1. Add elements to a LinkedList. We can use the add() method to add an element (node) at the end of the LinkedList.
2. Access LinkedList elements. The get() method of the LinkedList class is used to access an element from the LinkedList.
3. Change Elements of a LinkedList.
4. Remove element from a LinkedList.

How do you check if an element is in a linked list in C?

Steps to find the element in a given linked list

1. Assign the address of the first node to a temporary node pointer (Tmp).
2. Traverse the linked list until node pointer (Tmp != NULL).
3. Check the element in every iteration of the linked-list, if the given element is matched with tmp->iData then return TRUE else return FALSE.

How do you find the middle element of a linked list in Python?

Traverse linked list using two pointers. Move one pointer by one and other pointer by two. When the fast pointer reaches end slow pointer will reach middle of the linked list.

How do you find the middle element of an array by value?

int mid = firstIndex + (lastIndex-firstIndex)/2 , will give you the mid of the array.

How do you find the midpoint of an array in C?

You need to:

1. Find the size n of the array. Usually done by sizeof array / sizeof array[0] .
2. Index array[n/2] to find midpoint.

How do you add an element to a linked list?

Insert Elements to a Linked List

1. Insert at the beginning. Allocate memory for new node. Store data.
2. Insert at the End. Allocate memory for new node. Store data.
3. Insert at the Middle. Allocate memory and store data for new node. Traverse to node just before the required position of new node.

What is the time required to search an element in a linked list N?

O(n)
The time required to search an element in a linked list of length n is O(n). In the worst case, the element to be searched has to be compared with all elements of linked list.

How do you traverse a linked list in Python?

Traversing a Linked List. Singly linked lists can be traversed in only forward direction starting form the first data element. We simply print the value of the next data element by assigning the pointer of the next node to the current data element.

How do you find the middle index of an array in C++?

The middle element has index (length – 1)/2 . Therefore, the lower index of the first element selected is (length – 1)/2 – (n – 1)/2 and the upper index of the last element selected is (length – 1)/2 + (n – 1)/2 . Consequently, the indices needed are (length – n)/2 – 1 to (length + n)/2 – 1 .