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Delete multiple occurrences of key in Linked list using double pointer

Last Updated: 10 January 2024

Given a singly linked list, delete all occurrences of a given key in it. For example, consider the following list.Input: 2 - 2 - 4 - 3 - 2 Key to delete = 2Output: ...read more

Data Structures

cpp-double-pointer

What is a Pointer to a Null pointer

Last Updated: 16 June 2022

NULL pointer in C At the very high level, we can think of NULL as a null pointer which is used in C for various purposes. Some of the most common use cases for NULL areTo ...read more

C-Advanced Pointer

Advanced Pointer

C-Pointer Basics

cpp-double-pointer

How many levels of pointers can we have in C/C++

Last Updated: 18 January 2022

Prerequisite: Pointer in C and C++, Double Pointer (Pointer to Pointer) in CA pointer is used to point to a memory location of a variable. A pointer stores the address of ...read more

C-Advanced Pointer

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cpp-double-pointer

How to write C functions that modify head pointer of a Linked List?

Last Updated: 10 January 2023

Consider simple representation (without any dummy node) of Linked List. Functions that operate on such Linked lists can be divided into two categories:1) Functions that do...read more

cpp-double-pointer

Difference Between *& and **& in C++

Last Updated: 28 May 2024

In C++, the*(pointer to reference) and**(pointer to pointer reference)symbols are used in the context of pointers and references for manipulating memory addresses and deal...read more

cpp-double-pointer

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