Category: c / c++

In C++, both push_back and emplace_back are methods of the std::vector class used to add elements to the end of the vector, but they have some differences in how …

Note: I have been asked this question by a Google Recruiter in the early stage of Interview Process e.g. Screening. In C++, when you access a non-existent key in …

In C++, both list and vector are container classes provided by the Standard Template Library (STL). However, they differ in several key aspects, such as their underlying data structures, …

A simple yet effective hash function for strings is the well-known “djb2” algorithm by Daniel J. Bernstein. It is simple to implement and has good performance characteristics for many …

A set in C++ (aka std::set) is a ordered set (based on a Red-Black tree) while the unordered_set is based on a Hash Map. Implement a K-eth element for …