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Rohit Topi

4 posts •
Algorithms

Linked List with no NULLs

A Linked list is a dynamic data structure which can grow or shrink on demand. It is usually implemented using NULLs, we will consider an alternative no NULL approach and use placeholder nodes.

Rohit Topi
Algorithms

Designing a Binary Search Tree with no NULLs

A Binary Search Tree (BST) is usually implemented using NULLs in C or C++. This article explores an alternative approach of using placeholder nodes. Here the Binary Search Tree will be implemented in C++.

Rohit Topi
Software Engineering

nullptr (null pointer) in C++

A null pointer (nullptr) is a pointer that does not point to any memory location. nullptr is a keyword that was introduced in C++11 standard to denote a null pointer. This standard also introduced a nullptr_t type.

Rohit Topi
Software Engineering

Capitalize letters in Python

In this article, we have covered how to capitalize the first letter using capitalize() in Python, convert the entire string to upper-case, convert the entire string to lower-case and capitalize first letter of each word.

Rohit Topi
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