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So specifically, what Wolfram technology do you use that make this footer show up?
It's an interesting algorithm problem, but I cannot understand your example :( Would you mind providing more sample cases?
Just FYI, you can choose "Wolfram | Alpha" in your groups
I believe the best way to learn any programming language is learning by practice. The first step is to read the elementary of wolfram language with the help of following book: ...
Wolfram language developed by Stephen Wolfram. You can use some Mathematica API in some other languages, like Java Anyway, you can enjoy Wolfram language by programming on the cloud platform: https://www.wolframcloud.com/ Hello World
So you are asking why is a superclass necessary in general? Briefly, it is related to the design pattern and to make the design looks clear and logical.
Congratulations!
What about adding **-std=c++11** into the command?