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C Tutorial

Learn C from the ground up. Every code example on every lesson is real and runnable — the output shown was captured from an actual execution on this site's own compiler, not typed by hand — and you can try each one yourself with one click.

1. 1Introduction to C
2. 2Your First C Program
3. 3Variables and Types
4. 4Operators and Control Flow
5. 5Functions
6. 6Arrays
7. 7Pointers
8. 8Pointers and Arrays
9. 9Strings
10. 10Structs
11. 11Dynamic Memory
12. 12Structs and Pointers
13. 13Function Pointers
14. 14The Preprocessor
15. 15Bitwise Operators
16. 16Enums and typedef
17. 17const and static
18. 18Error Handling in C

More lessons are added regularly. Want to practice outside the tutorial? Open the C compiler. Prefer C++? Read the C++ tutorial. Prefer Java? Read the Java tutorial. Prefer Rust? Read the Rust tutorial. Prefer Go? Read the Go tutorial. Prefer TypeScript? Read the TypeScript tutorial. Prefer JavaScript? Read the JavaScript tutorial. Prefer Python? Read the Python tutorial. Prefer Hindi? Hindi mein padhein. Prefer Urdu? Roman Urdu mein parhein. ¿Prefieres español? Leer en español. Prefere português? Ler em português.