Problem Set 1

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.

For this problem set, you’ll use CS50 IDE, a cloud-based programming environment.

What to Do

Are you an edX student? Don’t attempt to follow these instructions! Head over to cs50.edx.org or cs50.harvard.edu/x, and use the instructions there instead! These instructions are only for the on-campus course!

Log into Ed and then reply to this thread to say hello (and, if you’d like, a little about yourself!) to other students and staff. If you don’t yet have an account, you should first sign up for Ed.
Go to ide.cs50.io and click “Sign in with GitHub” to access your CS50 IDE.
Submit Hello
Submit one of:
- this version of Mario if feeling less comfortable
- this version of Mario if feeling more comfortable
Submit one of:
- Cash if feeling less comfortable
- Credit if feeling more comfortable
Submit this form.

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

When to Do It

By .

Advice

Try out any of David’s programs from class via Week 1’s source code.
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!