Is sololearn app is reliable for learning c++ and html??

Answer 1

yes but why learn html and c++ at the same time when they are used in completely different fields?
learn only web languages (html css js php sql) or only general purpose languages (c++ java c# ...)

Answer 2

Yes, but only does basics of C++ because it is a massive language. After finishing C++ here, try cplusplus.com and also books for everything in the standard namespace.

Answer 3

Sololearn is good, but it is not good if you only use Sololearn, and not code.