C

Join the C Track
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.
Join the C Track
Track mentors

14 Mentors

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

2,967 Students

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

57 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!

Join the C track

Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

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 Bob Forgey

Bob Forgey https://github.com/sesamemucho

I've been using C for a long time, mostly doing embedded systems development. I still enjoy programming in C. I value clarity over cleverness.
Avatar of Giacomo Guiulfo

Giacomo Guiulfo https://github.com/giacomoguiulfo

C is my favorite programming language because of the simplicity it offers and the fact that you can really be in 'total' control of programs written with it. I've programmed in C professionally, at school and for many personal projects.
Avatar of Karthik Deepak Natraj

Karthik Deepak Natraj https://github.com/karbfg10k

I love Rust and C and use them at my day job in automotive. I work with Embedded software but I'm also reasonably familiar with systems programming as well
Avatar of Alexis Lu

Alexis Lu https://github.com/luyiranl2010

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 Lorraine Lee

Lorraine Lee There is no enemy anywhere.

Just an enthusiast programmer
Fun. Challenging. Interesting

Community-sourced C exercises

These are a few of the 57 exercises on the C track. You can see all the exercises here.

Isogram
easy
arrays
control flow if else statements
control flow loops
strings
ETL
easy
pointers
structs
Beer Song
easy
control flow if else statements
control flow loops
strings
Difference Of Squares
easy
control flow loops
math
Hamming
easy
arrays
control flow loops
strings
Gigasecond
easy
dates

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

Join the C Track