This Blog's Concept
In programming, the solution is not always unique for something you want to achieve.
I usually try multiple implementations when I find them.
In competitive programming such as Codeforces and AtCoder, I think that submitting many solutions is one of the ways to enjoy.
If you have experienced many types of patterns in practical tasks, you can think of 3 or more solutions for a frequent problem.
So in this blog, I will show multiple solutions for the target problem, and also implement primitive functions.
