C Programming

Every lesson runs in your browser — write real code, press Run, and the tasks check themselves. Free, no account needed, with translated notes paired with English.

Start the course

Lessons in this course

No lessons match. Clear the search or choose another filter.

1. history A short history of C Reading and resources
2. usage What C is used for Reading and resources
3. resources Where to learn more Reading and resources
4. setup Set up your computer Reading and resources
5. C basics: main, printf, and functions 01 · 3 required tasks Video
6. Variables, types, and arithmetic 02 · 3 required tasks Video
7. Booleans and selection: if, else, switch 03 · 3 required tasks Video
8. Loops: while, for, and accumulation 04 · 3 required tasks Video
9. Functions, parameters, and return values 05 · 3 required tasks Video
10. Nested loops and patterns 06 · 3 required tasks Video
11. 1-D arrays: store, index, and traverse 07 · 3 required tasks Video
12. Pointers: &, *, and pass-by-pointer 08 · 3 required tasks Video
13. Strings: char arrays and the null terminator 09 · 3 required tasks Video
14. Array algorithms: max, count, search, average 10 · 4 required tasks Video
15. 2-D arrays: working with a grid 11 · 3 required tasks Video
16. Searching: linear and binary 12 · 3 required tasks Video
17. Sorting: bubble, selection, and insertion 13 · 3 required tasks Video
18. Recursion: base case and recursive case 14 · 3 required tasks Video
19. Structs and typedef: . vs -> 15 · 3 required tasks Video
20. Dynamic memory: malloc, free, and realloc 16 · 3 required tasks Video
21. Linked lists 17 · 3 required tasks Video
22. Stacks and queues (array-backed) 18 · 3 required tasks Video
23. Text files: write then read 19 · 2 required tasks Video
24. Error handling with return codes 20 · 3 required tasks Video
25. Bits, binary, and bitwise operators 21 · 3 required tasks Video
26. Run-length encoding (compression) 22 · 2 required tasks Video
27. Preprocessor, const, static, and enum 23 · 3 required tasks Video

Language reference

/know/reference/c