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cpp-vector

375+ posts

Last Updated: 21 November 2024

In C++, the vector back() is a built-in function used to retrieve the last element of the vector. It provides a reference to the last element which allows us to read or mo...read more

C++

STL

cpp-vector

cpp-containers-library

Vector clear() in C++ STL

Last Updated: 09 April 2025

In C++, vector clear() is a built-in method used to remove all elements from a vector, making it empty. In this article, we will learn about the vector clear() method in C...read more

C++

STL

cpp-vector

cpp-containers-library

CPP Examples

How to Initialize 2D Vector in C++?

Last Updated: 22 November 2024

Initializing a 2D vector refers to the process of assigning initial values to the elements of a 2D vector. In this article, we will learn different methods to initialize a...read more

How to Insert Elements into 2D Vector in C++?

Last Updated: 22 November 2024

In C++, 2D vectors provide several built-in methods to insert elements. The efficiency of the insertion depends on where the insertion occurs. In this article, we will exp...read more

How to Iterate 2D Vector in C++?

Last Updated: 27 May 2025

Iterating or traversing a 2D vector means accessing each element of the 2D vector sequentially. In this article, we will explore different methods to iterate over a 2D vec...read more

Vector Operator = in C++ STL

Last Updated: 25 November 2024

In C++, the vector operator = is used to assign the contents of one vector to another. It allows you to copy elements from one vector to another or initialize a vector wit...read more

C++

STL

cpp-vector

cpp-containers-library

How to Find Duplicates in a Vector in C++?

Last Updated: 26 November 2024

In this article, we will learn how to find the duplicate elements in a vector in C++.The easiest way to find the duplicate elements from the vector is by using sort() func...read more

Right Rotation of Vectors in C++

Last Updated: 05 December 2024

Right rotation of a vector involves shifting all elements to the right by a specified number of positions. The elements shifted out from the right end are wrapped around t...read more

Vector pop_back() in C++ STL

Last Updated: 26 November 2024

In C++, the vector pop_back() is a built-in method used to remove the last element from a vector. It reduces the size of the vector by one, but the capacity remains unchan...read more

cpp-containers-library

Vector begin() in C++ STL

Last Updated: 26 November 2024

In C++, the vector begin() is a built-in method used to obtain an iterator pointing to the start of the vector. This iterator is used to traverse the vector or perform ope...read more

C++

STL

cpp-vector

cpp-containers-library

How to Initialize a Vector with Zero in C++?

Last Updated: 03 December 2024

Initializing a vector with value zero means assigning the initial value 0 to all elements of vector. In this article, we will learn the different methods to initialize the...read more

How to Remove Elements from a Vector while Iterating in C++?

Last Updated: 03 December 2024

Erasing elements from a vector while iterating can be challenging because removing an element may invalidate iterators or change the size of the vector. In this article, w...read more

Initialize a Vector with Hardcoded Elements

Last Updated: 05 December 2024

C++ allows us to initialize the vector with hardcoded (predefined) elements. In this article, we will learn how to initialize the vector with predefined elements.The simpl...read more

Vector crbegin() in C++ STL

Last Updated: 28 November 2024

In C++, the vector crbegin() is a built-in method used to obtain a constant reverse iterator pointing to the last element of the vector. It is used to mark the starting po...read more

C++

STL

cpp-vector

cpp-containers-library

How to Insert an Element in a Sorted Vector in C++?

Last Updated: 06 December 2024

In C++, inserting element in a sorted vector should be done such that it preserves the order of elements. In this article, we will learn different methods to insert an ele...read more

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