Introduction A queue is a linear data structure that follows the First In, First Out (FIFO) principle. This means that the first element added to the queue will be the first one to be removed. A queue can be implemented using an array, where elements are added at the rear (end) of the array and …
Introduction A stack is a linear data structure that follows the Last In, First Out (LIFO) principle. In a stack implemented using a linked list, each node contains data and a pointer to the next node. The top of the stack is represented by the head of the linked list, and stack operations such as …
Introduction A stack is a linear data structure that follows the Last In, First Out (LIFO) principle. It means that the last element inserted into the stack will be the first one to be removed. The primary operations on a stack are push (to insert an element), pop (to remove an element), and peek or …
Introduction A loop in a linked list occurs when a node’s next pointer points to a previous node in the list, creating a cycle. Detecting a loop is crucial because it can cause an infinite loop during traversal and lead to program crashes. One common method to detect a loop is Floyd’s Cycle-Finding Algorithm, also …
Introduction Merging two linked lists involves combining the elements of both lists into a single linked list. The merge operation can be done in two ways: appending the second list to the end of the first list or merging the lists in a sorted manner if both lists are already sorted. Example: Input: Two linked …
Introduction Searching for an element in a linked list involves traversing the list from the head node to the end node and comparing each node’s data with the target value. If a match is found, the search is successful, and the position of the element (or its existence) is returned. If no match is found …
Introduction The length of a linked list refers to the number of nodes present in the list. To find the length, you need to traverse the entire list from the head to the last node, counting each node as you go. Example: Input: A linked list with nodes containing [10, 20, 30, 40]. Output: The …
Introduction Reversing a linked list involves changing the direction of the next pointers of the nodes so that they point to the previous node instead of the next one. This effectively reverses the order of the nodes in the list. The head of the list is updated to point to the last node, which becomes …
Introduction A linked list is a dynamic data structure where each element, called a node, contains a data part and a pointer to the next node. Deleting a node from a linked list involves finding the node, adjusting the pointers of the previous node (if any), and then freeing the memory allocated to the node …
Introduction A linked list is a dynamic data structure where each element, called a node, contains a data part and a pointer to the next node. To insert a node at the beginning of a linked list, you need to create a new node, set its next pointer to point to the current head of …
C Program to Insert a Node at the Beginning of a Linked List Read More »
Introduction A linked list is a dynamic data structure where each element, called a node, contains a data part and a pointer to the next node. To insert a node at the end of a linked list, you need to traverse the list to the last node and then update the last node’s pointer to …
C Program to Insert a Node at the End of a Linked List Read More »
Introduction A doubly linked list is a dynamic data structure where each element, called a node, contains a data part and two pointers: one pointing to the next node and another pointing to the previous node. The doubly linked list allows traversal in both directions (forward and backward), making it more flexible than a singly …
Introduction A singly linked list is a dynamic data structure where each element, called a node, contains a data part and a pointer to the next node in the list. The last node points to NULL, indicating the end of the list. Singly linked lists allow efficient insertion and deletion of elements at both ends …
Introduction Dynamic memory allocation in C allows you to allocate memory at runtime using functions like malloc(), calloc(), or realloc(). After you have finished using the allocated memory, it is crucial to free it using the free() function. Failing to free dynamically allocated memory can lead to memory leaks, which occur when a program consumes …
Introduction In C programming, dynamic memory allocation allows you to allocate memory at runtime. The realloc() function is used to resize the previously allocated memory block without losing the old data. This can be useful when you need to increase or decrease the size of an allocated memory block based on runtime requirements. Example: Input: …
Introduction In C programming, dynamic memory allocation allows you to allocate memory at runtime. The calloc() function is used to allocate memory for an array of elements and initializes all bytes to zero. Unlike malloc(), which allocates a single block of memory, calloc() allocates multiple blocks of memory, each of the same size. Example: Input: …
C Program to Allocate Memory for an Array Using calloc() Read More »
Introduction Dynamic memory allocation in C allows you to allocate memory at runtime using functions like malloc(). This is useful when you need to allocate memory whose size isn’t known until the program is running. The malloc() function allocates a specified number of bytes and returns a pointer to the first byte of the allocated …
C Program to Allocate Memory Dynamically Using malloc() Read More »
Introduction Merging two arrays involves combining the elements of two arrays into a single array. In C, you can use pointers to efficiently traverse the two arrays and copy their elements into a third array. This guide will show you how to write a C program to merge two arrays using pointers. Example: Input: Array …
Introduction Binary Search is an efficient algorithm for finding an item from a sorted list of items. It works by repeatedly dividing the search interval in half. If the value of the search key is less than the item in the middle of the interval, the search continues in the lower half, or if the …
C Program to Implement Binary Search Using Pointers Read More »
Introduction Insertion Sort is a simple and efficient sorting algorithm that builds the final sorted array one element at a time. It works similarly to how you might sort playing cards in your hands: taking one card at a time and placing it in the correct position among the cards already in your hand. In …
C Program to Implement Insertion Sort Using Pointers Read More »
Introduction Selection Sort is a simple sorting algorithm that works by repeatedly finding the minimum element from the unsorted part of the array and placing it at the beginning. This process continues until the entire array is sorted. In C, you can implement Selection Sort using pointers to directly manipulate the elements of the array. …
C Program to Implement Selection Sort Using Pointers Read More »
Introduction Bubble Sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order. The pass through the list is repeated until the list is sorted. In C, you can implement Bubble Sort using pointers to directly manipulate the elements of the …
C Program to Implement Bubble Sort Using Pointers Read More »
Introduction Finding the largest element in an array is a common problem in programming. In C, you can use pointers to traverse the array and determine the largest element by comparing each element in the array. This guide will show you how to write a C program to find the largest element in an array …
C Program to Find the Largest Element in an Array Using Pointers Read More »
Introduction In C programming, pointers provide a powerful way to directly access and manipulate the memory locations of variables, including elements within an array. This guide will show you how to write a C program to access and display elements of an array using pointers. Example: Input: Array [1, 2, 3, 4, 5] Output: Displaying …
C Program to Access Array Elements Using Pointers Read More »
Introduction Comparing two strings involves checking if they are identical or if one is lexicographically greater or smaller than the other. In C, you can compare two strings by using pointers to traverse each string character by character. This guide will show you how to write a C program to compare two strings using pointers. …