a computer science portal for geeks. it contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview questions.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

tutorials point is an online learning platform providing free tutorials, paid premium courses, and ebooks. learn the latest technologies and programming languages sql, mysql, python, c, c++, java, python, php, machine learning, data science, ai, prompt engineering and more.

learn to code in python, c/c++, java, and other popular programming languages with our easy to follow tutorials, examples, online compiler and references.

well organized and easy to understand web building tutorials with lots of examples of how to use html, css, javascript, sql, python, php, bootstrap, java, xml and more.

the best site for c and c++ programming. popular, beginner-friendly c and c++ tutorials to help you become an expert!

compiler explorer is an interactive online compiler which shows the assembly output of compiled c++, rust, go (and many more) code.