Problem Set 2

What to Do

1. Log into code.cs50.io using your GitHub account
2. Run update50 in your codespace’s terminal window to ensure your codespace is up-to-date and, when prompted, click Rebuild now
3. Submit Readability
4. Submit one of:
   • Caesar, if feeling less comfortable
   • Substitution, if feeling more comfortable

If you submit both Caesar and Substitution, 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 2’s examples.
• To see the manual pages for C functions, visit manual.cs50.io.
• 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 readability, and

  make readability
  

  is yielding errors, try running

  help50 make readability
  

  instead!