learn-c.org is a free interactive c tutorial for people who want to learn c, fast.

free source code and tutorials for software developers and architects.; updated: 28 mar 2024

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

bytes.com is a community for software developers and programmers. get programming and software development help from 469,156 other developers.

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.

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.