Problem Set 2

Collaboration on problem sets is not permitted except to the extent that you may ask classmates and others for help so long as that help does not reduce to another doing your work for you, per the course’s policy on academic honesty.

What to Do

Log into code.cs50.io using your GitHub account
Run update50 in your codespace’s terminal window to ensure your codespace is up-to-date and, when prompted, click Rebuild now
Submit Readability
Getting Started

Start by clicking inside your terminal window, then execute cd by itself. You should find that its “prompt” resembles the below.
```
$
```
Click inside of that terminal window and then execute
```
wget https://cdn.cs50.net/2022/fall/psets/2/readability.zip
```
followed by Enter in order to download a ZIP called readability.zip in your codespace. Take care not to overlook the space between wget and the following URL, or any other character for that matter!

Now execute
```
unzip readability.zip
```
to create a folder called readability. You no longer need the ZIP file, so you can execute
```
rm readability.zip
```
and respond with “y” followed by Enter at the prompt to remove the ZIP file you downloaded. Finally, right-click or control-click on the readability folder and click “Open in CS50 Lab”. You should see the specification for this problem on the left-hand side and its distribution code on the right-hand side.
Submit one of:
- Bulbs, if feeling less comfortable
  Getting Started
  
  Start by clicking inside your terminal window, then execute cd by itself. You should find that its “prompt” resembles the below.
```
$
```
  Click inside of that terminal window and then execute
```
wget https://cdn.cs50.net/2022/fall/psets/2/bulbs.zip
```
  followed by Enter in order to download a ZIP called bulbs.zip in your codespace. Take care not to overlook the space between wget and the following URL, or any other character for that matter!
  
  Now execute
```
unzip bulbs.zip
```
  to create a folder called bulbs. You no longer need the ZIP file, so you can execute
```
rm bulbs.zip
```
  and respond with “y” followed by Enter at the prompt to remove the ZIP file you downloaded. Finally, right-click or control-click on the bulbs folder and click “Open in CS50 Lab”. You should see the specification for this problem on the left-hand side and its distribution code on the right-hand side.
- Caesar, if feeling less comfortable
  Getting Started
  
  Start by clicking inside your terminal window, then execute cd by itself. You should find that its “prompt” resembles the below.
```
$
```
  Click inside of that terminal window and then execute
```
wget https://cdn.cs50.net/2022/fall/psets/2/caesar.zip
```
  followed by Enter in order to download a ZIP called caesar.zip in your codespace. Take care not to overlook the space between wget and the following URL, or any other character for that matter!
  
  Now execute
```
unzip caesar.zip
```
  to create a folder called caesar. You no longer need the ZIP file, so you can execute
```
rm caesar.zip
```
  and respond with “y” followed by Enter at the prompt to remove the ZIP file you downloaded. Finally, right-click or control-click on the caesar folder and click “Open in CS50 Lab”. You should see the specification for this problem on the left-hand side and its distribution code on the right-hand side.
- Substitution, if feeling more comfortable
  Getting Started
  
  Start by clicking inside your terminal window, then execute cd by itself. You should find that its “prompt” resembles the below.
```
$
```
  Click inside of that terminal window and then execute
```
wget https://cdn.cs50.net/2022/fall/psets/2/substitution.zip
```
  followed by Enter in order to download a ZIP called substitution.zip in your codespace. Take care not to overlook the space between wget and the following URL, or any other character for that matter!
  
  Now execute
```
unzip substitution.zip
```
  to create a folder called substitution. You no longer need the ZIP file, so you can execute
```
rm substitution.zip
```
  and respond with “y” followed by Enter at the prompt to remove the ZIP file you downloaded. Finally, right-click or control-click on the substitution folder and click “Open in CS50 Lab”. You should see the specification for this problem on the left-hand side and its distribution code on the right-hand side.
- Wordle50 if feeling more comfortable
  Getting Started
  
  Start by clicking inside your terminal window, then execute cd by itself. You should find that its “prompt” resembles the below.
```
$
```
  Click inside of that terminal window and then execute
```
wget https://cdn.cs50.net/2022/fall/psets/2/wordle.zip
```
  followed by Enter in order to download a ZIP called wordle.zip in your codespace. Take care not to overlook the space between wget and the following URL, or any other character for that matter!
  
  Now execute
```
unzip wordle.zip
```
  to create a folder called wordle. You no longer need the ZIP file, so you can execute
```
rm wordle.zip
```
  and respond with “y” followed by Enter at the prompt to remove the ZIP file you downloaded. Finally, right-click or control-click on the wordle folder and click “Open in CS50 Lab”. You should see the specification for this problem on the left-hand side and its distribution code on the right-hand side.
Submit this form

You may submit more than one of Bulbs, Caesar, Substitution, or Wordle50. We’ll record the single highest of your scores among those problems.

When to Do It

By 2022-09-18T23:59:00-04:00.

How to Get Help

Browse or search for answers on Ed!
Verbalize your logic to a rubber duck (whether actual or virtual!) and see if you hear any illogic in your own words!
Sign up for a tutorial!
Attend office hours!

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!