Problem Set 2: Crypto

Per Week 2’s lecture:

Alright, here we go again!

Log into cs50.io and execute

within a terminal window to make sure your workspace is up-to-date. If you somehow closed your terminal window (and can’t find it!), make sure that Console is checked under the View menu, then click the green, circled plus (+) in CS50 IDE’s bottom half, then select New Terminal.

Next, execute

at your prompt in order to make a directory called pset2 in your workspace directory. Take care not to overlook the space between mkdir and ~/workspace/pset2/ or any other character for that matter! Keep in mind that ~ denotes your home directory, ~/workspace/ denotes a directory called workspace therein, and ~/workspace/pset2/ denotes a directory called pset2 within ~/workspace/.

Now execute

to move yourself into (i.e., open) that directory. Your prompt should now resemble the below.

If not, retrace your steps and see if you can determine where you went wrong. You can actually execute

at the prompt to see your last several commands in chronological order if you’d like to do some sleuthing. You can also scroll through the same one line at a time by hitting your keyboard’s up and down arrows; hit Enter to re-execute any command that you’d like.

Implement any two (2) of:

You’re welcome but not expected to implement all three; if you submit all three, we’ll grade your two best.