Problem Set 1

What to Do

1. Log into code.cs50.io using your GitHub account and follow the on-screen instructions to set up your very own “codespace” for Visual Studio Code
2. Once your codespace has loaded, close any Welcome tabs that might have opened by default
3. Log into submit.cs50.io using your GitHub account and click Authorize cs50 to activate check50
4. Run update50 in your codespace’s terminal window to ensure your codespace is up-to-date and, if prompted, click Rebuild now
5. Submit Hello
6. Submit one of:
   • this version of Mario if feeling less comfortable
   • this version of Mario if feeling more comfortable
7. Submit one of:
   • Cash if feeling less comfortable
   • Credit if feeling more comfortable

If you submit both versions of Mario, we’ll record the higher of your two scores. If you submit both Cash and Credit, we’ll record the higher of your two scores.

When to Do It

By the College Board’s AP deadlines for the 2022–2023 academic year.

Advice

• Try out any of David’s programs from class via Week 1’s source code.
• See CS50’s style guide for C for tips on how to improve your code’s style.
• If you see any errors when compiling your code with make, focus first on fixing the very first error you see, scrolling up as needed. If unsure what it means, try asking help50 for help. For instance, if trying to compile hello, and

  make hello
  

  is yielding errors, try running

  help50 make hello
  

  instead!