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Understand Logic, Not Just Syntax
Free tutorials that teach you why code works. Perfect for beginners and those refreshing their skills.
Everything you need to go from beginner to confident C programmer
5580+ questions to test and reinforce your knowledge
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Quick reference cards for syntax and concepts
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Start with these highly-rated tutorials
Discover why C is still one of the most important programming languages after 50+ years. Learn its history, where it's used today, and why learning C gives you an edge in your programming career.
Understand what programming really is before writing any code. Learn why we program, types of programming languages, and key concepts every beginner should know.
Learn what algorithms are and how to write step-by-step solutions to problems. Understand the building blocks of all computer programs.
Learn to draw flowcharts - visual diagrams that represent algorithms. Master the standard symbols for start, process, decision, and input/output.
Your first step into C programming! Learn how to install a compiler, set up your computer, and write your very first "Hello World" program. No prior experience needed.
Learn the fundamental building blocks of C programs. Understand the main() function, how to write comments, and why proper formatting makes code readable.
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