Are there free C++ Resources other than sololearn?

Answer 1

Top 15 apps for learning coding

https://code.sololearn.com/W8Lx47msLgTJ/?ref=app

❄ Top 25 Websites to learn Coding
⚡https://www.codecademy.com/
⚡https://www.udemy.com/
⚡https://www.edx.org/
⚡https://www.coursera.org/
⚡https://www.codewars.com/
⚡https://www.freecodecamp.com/
⚡https://github.com/
⚡https://www.theodinproject.com/
⚡https://www.khanacademy.org/
⚡https://ocw.mit.edu/index.htm
⚡https://www.udacity.com/
⚡https://www.codeavengers.com/
⚡https://davidwalsh.name/
⚡https://tutsplus.com/
⚡https://www.sitepoint.com/
⚡https://www.html5rocks.com/en/
⚡https://hackpledge.org/
⚡http://blog.agupieware.com/2014/05/online-learning-bachelors-level.html
⚡http://www.crunchzilla.com/
⚡https://dash.generalassemb.ly/
⚡https://www.codeschool.com/
⚡https://teamtreehouse.com/
⚡https://www.udemy.com/user/infiniteskills/
⚡https://www.lynda.com/
⚡https://codehs.com/

Answer 2

Many many many