Great work getting through these first exercises! Let’s review what was covered:

  • C has been around for a while but is still very popular
  • Code syntax is a set of rules that are followed when writing code so the program is able to compile
  • Errors occur when the syntax is incorrect
  • Error messages make a best effort to describe the error and where it occurred
  • Use printf() to output text to the console
  • Comments are used to include text in code that the compiler will ignore
  • Line comments start with // and block comments are surrounded by /* */
  • The gcc application, or GNU Compiler Collection is a compiler used to compile C programs


The Hello World code is once again in the workspace. Feel free to modify it in any way to get new behavior; even if you’re hunting for a new error!

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