Use APKPure App
Get Learn C++ By Examples old version APK for Android
A handy reference app for various C++ example codes.
Learn C++ programming by following examples in this app.
You can browse and find any example easily by searching its title.
All the examples are for command line C++ program. So you can type the codes in your desktop IDE, then build and run it in command line program.
Most examples are the basic C++ program that every beginner C++ programmer should know.