CPP-Library

250+ posts

Last Updated: 09 October 2023

Prerequisite: Vector in C++Vectors are the same as dynamic arrays with the ability to resize themselves automatically when an element is ins ...read more

STL

CPP-Library

cpp-vector

cpp-advanced

C++

snprintf() in C library

Last Updated: 12 April 2022

The snprintf() function is defined in the stdio.h header file and is used to store the specified string till a specified length in the speci ...read more

vector::push_back() and vector::pop_back() in C++ STL

Last Updated: 16 February 2023

Vectors are same as dynamic arrays with the ability to resize itself automatically when an element is inserted or deleted, with their storag ...read more

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Substring in C++

Last Updated: 16 November 2023

The substring function is used for handling string operations like strcat(), append(), etc. It generates a new string with its value initial ...read more

Power Function in C/C++

Last Updated: 31 October 2023

Given two numbers base and exponent, the C++ or C pow() function finds x raised to the power of y i.e. x y. Basically in C/C++, the exponent ...read more

rand() and srand() in C++

Last Updated: 07 May 2023

rand() function is an inbuilt function in C++ STL, which is defined in header file cstdlib. rand() is used to generate a series of random nu...read more

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Socket Programming in C/C++

Last Updated: 19 October 2023

What is socket programming?Socket programming is a way of connecting two nodes on a network to communicate with each other. One socket(node)...read more

CPP-Library

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<bits/stdc++.h> in C++

Last Updated: 13 June 2022

It is basically a header file that includes every standard library. In programming contests, using this file is a good idea, when you want t ...read more

Last Updated: 10 January 2023

Prerequisite : Introduction to IteratorsIterators are used to point at the memory addresses of STL containers. They are primarily used in se ...read more

Converting Number to String in C++

Last Updated: 18 May 2023

In C++, converting integers to strings or converting numbers to strings or vice-versa is actually a big paradigm shift in itself. In general ...read more

Sort Vector of Pairs in ascending order in C++

Last Updated: 27 January 2023

What is Vector of Pairs?A pair is a container which stores two values mapped to each other, and a vector containing multiple number of such ...read more

Convert String to int in C++

Last Updated: 21 September 2023

Converting a string to int is one of the most frequently encountered tasks in C++. As both string and int are not in the same object hierarc...read more

std::sort() in C++ STL

Last Updated: 23 September 2023

We have discussed qsort() in C. C++ STL provides a similar function sort that sorts a vector or array (items with random access)It generally ...read more

cpp-algorithm-library

unordered_map in C++ STL

Last Updated: 10 January 2023

unordered_map is an associated container that stores elements formed by the combination of a key value and a mapped value. The key value is ...read more

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cpp-containers-library

cpp-unordered_map

cpp-unordered_map-functions

How to split a string in C/C++, Python and Java?

Last Updated: 18 April 2023

Splitting a string by some delimiter is a very common task. For example, we have a comma-separated list of items from a file and we want ind ...read more

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