Posts from C++

How to validate Roman Numerals using Regular Expression in C++

By Om Avhad

Hello friends, today we’ll be learning to validate Roman numerals using regular expressions. Firstly, the user will enter a string which and we will validate. Finally, we wil.... Read More

Get the last element from a vector in C++

By Mahak Chawla

In this tutorial, we will learn how to access the last element from a vector in C++. In C++, we can get the last element of the vector by using the following two methods: Using siz.... Read More

Get random n rows from a 2D array in C++

By Aakanksha Thakar

This tutorial will show you how to get the random n number of rows from a 2D array in C++. The 2D array is nothing but a matrix which have rows and columns. We will generate n rand.... Read More

Extract negative numbers from array in C++

By Mahak Chawla

In this tutorial, we will learn how to extract negative numbers from an array. An array can consist of positive as well as negative numbers. We will use the if-else statement to co.... Read More

Difference between std::array and std::vector in C++

By HARI HARAN B

The std::vector is a container that implements a dynamic array and the std::array implements the static array. In this article, we shall learn the difference between std::array and.... Read More

Pushback and print elements in a float vector in C++

By HARI HARAN B

A vector is an STL container and I’m sure many of you are already familiar with the usability of the vector with any datatype. In this article, we will look at the different ways.... Read More

Vector insert function in C++

By Harsh Singh

Here we will learn about the insert() function present in C++ STL. insert() function is used to insert a new element in a vector. By taking two arguments: The iterator of the posit.... Read More

How to Multiply two matrices using operator overloading in C++

By Paras Bhargava

Here in this tutorial, we will multiply two matrices using operator overlaoding in C++. C++ does not allow the use of operators on user-defined data types. Hence, we can use operat.... Read More

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