Implemented the elbow method in C++ to estimate the number of clusters for k-means and verified its behavior.

Implemented k-means++, an improved version of the k-means algorithm, in C++ and verified its behavior.

Explored the behavior of k-means, perhaps the most well-known clustering algorithm, by implementing it in C++.

#pragma once is non-standard, but it has an advantage. It’s OK to use this.

In programming, it is often necessary to control some form of state. This article summarizes several patterns for managing states.