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C

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C is a small, general-purpose, imperative programming language with a static type system, scopes, and structures. It's typically used as an alternative to assembly programming, such as in operating systems.
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Track mentors

24 Mentors

Our mentors are friendly, experienced C developers who will help teach you new techniques and tricks.
Track students

18,685 Students

Join thousands of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

70 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About C

#include <stdio.h>

int main(int argc, char* argv[]) {
	printf("Hello, World!\n");
}

C is a general purpose language, used for a wide range of applications, from embedded computers to high-performance computing clusters.

C is commonly found in low level applications as it's a good alternative to harder-to-read assembly languages. It can be compiled to assembly to keep the same level of performance, while increasing readability, and providing a small level of safety with static types!

C was created by Dennis Ritchie at Bell Labs, and used to re-implement the Unix operating system. Now, it's one of the most used programming languages, with many compilers supporting providing support for most available hardware and platforms - there's plenty of resources and support available to help you get started!

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A tremendous learning opportunity to explore the depth of your own knowledge

Exercism is fantastic in learning new languages but that is not the extent of it. If you are a "more experienced" programmer you may have encountered impostor syndrome: the idea you don't really know what you think you know. Exercism lets you solve problems and put them in the space of open feedback which is a tremendous learning opportunity to explore the depth of your own knowledge. Even if you have been programming in a language for awhile it is worth checking into Exercism to see where you stand with current implementation practices.

Relaxed. Encouraging. Supportive.

Meet the C Track mentors

Once you join the C language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Sherwood Nelson

Sherwood Nelson https://github.com/setn4me

I am very interested in the theory of OS. Most OS kernels were written in C, for example, the Linux kernel. I would like to teach beginners programming in C, because C uses a large number of low-level concepts that every programmer should know.
Avatar of Chirag Mittal

Chirag Mittal http://chiragmittal.tech

I love to spread my knowledge. I'm using C and C++ from past 4 years. I love them because of their simplicity and friendliness.
Avatar of Alexis Lu

Alexis Lu

I am using C and C++ for some years. C is more friendly when compile to assembly.
Avatar of Naris Rangsiyawaranon

Naris Rangsiyawaranon https://github.com/KittenHero

I'll take C over assembly any day.
Avatar of Daniel Heater

Daniel Heater http://www.heatertech.com

I've been writing code for 35+ years and I continue to learn things when I read another person's code
Avatar of Subhanshu Goel

Subhanshu Goel https://github.com/hundredeir

Loves systems, language, and teaching. Always tries to dive beneath surface layer knowledge. C, C++, Python, Rust, and Scheme. Next will be Idris
Fun. Challenging. Interesting

Community-sourced C exercises

These are a few of the 70 exercises on the C track. You can see all the exercises here.

Robot Simulator
easy
control flow if statements
pointers
strings
structs
variable argument lists
Crypto Square
medium
algorithms
control flow if statements
strings
Pascal's Triangle
easy
control flow if else statements
memory management
math
Grains
easy
bitwise operations
control flow loops
performance optimizations
Acronym
easy
control flow loops
memory management
strings
Complex Numbers
easy
performance optimizations
structs
math
Passionate. Knowledgeable. Creative.

Meet the C Track maintainers

The C Maintainers are the brains behind the C Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Ryan Hartlage

Ryan Hartlage

This maintainer has not added their bio yet.
Avatar of wolf99

wolf99 My GitHub Profile

This maintainer has not added their bio yet.
Avatar of Barrett

Barrett

This maintainer has not added their bio yet.

Get started with the C track. As with everything on Exercism, it's 100% free!

Join the C Track