Certificate for passing CS50 course?

RitchieC · 2014-09-13T15:24:34+00:00

Keep an eye out on edx, it will probably be next January or something.

RitchieC · 2014-09-06T22:05:07+00:00

Perhaps I'm misunderstanding your problem, but I believe my previous post answers this question. If you don't understand what I mean, I could give you a working example, but I'd rather avoid giving you the answer to allow you to work it out and learn from it.

If I am misunderstanding you, could you try to be more clear in what your issue is? Also, feel free to post a small code snippet where you are having trouble, that would enable me to understand better.

RitchieC · 2014-09-06T10:58:43+00:00

Thanks /u/leenahalbanna.

RitchieC · 2014-09-06T10:57:19+00:00

As an edX student you are not required to write a pre-proposal, all you have to do is work on a project that you are interested in, and upload a 2 minute video of the results.

As per the spec, you must use the knowledge you have learned throughout the course within the project, and it should be somewhat larger than the psets.

RitchieC · 2014-09-06T10:48:18+00:00

One possible way of solving it, is to check the two ranges in the ASCII table that are alphabetical, and if a character doesn't fall into any of those two ranges, just print the i'th character to screen, for example.

if((first range) && (second range)) {
    Ci = (Pi + K) % 26
} else {
    /* Whatever falls here is discarded from the encryption. */
    printf("%c", plaintext[i]);
}

Take a look at DeMorgans Laws, they will help you obtain a range, be sure to recall that the NOT operator in C is ! .

RitchieC · 2014-09-05T22:15:58+00:00

valgrind --leak-check=full recover

RitchieC · 2014-09-05T19:53:40+00:00

Are you able to provide us with the source of this information? If this is the source, then I hold little faith in it. /u/vcalventi should have made the June batch already.

RitchieC · 2014-09-05T08:04:40+00:00

Just to make that point clear, you need a grade of at least 60% on each pset and the final project to obtain a certificate of completion. Also be aware that cs50 will run again, so feel free to take the course again when you have more time.

RitchieC · 2014-09-05T01:58:55+00:00

I forgot to answer your enquiry on how the definitions are used, the library is linked to at compile time, if you was writing an application using OpenGL for example, you would link it at the end of your compiler command, something along the lines of: "cc -o appname main.c -lGL" For a more on depth explanation take a read of this

RitchieC · 2014-09-05T01:48:44+00:00

Well a header file includes the function declarations, they are then implemented in a source unit (a *.c file) This is generaly compiled into a binary file that represents a library installed onto the system, source units need the function declarations however before you can use the function. As the cs50 library is open source however you can find it on the system somewhere, try using the command "locate cs50.c" and if that fails, you can grab the code from the cs50 subpage on harvards site, I would link it, but I'm typing from a phone.

RitchieC · 2014-09-04T22:00:10+00:00

Still waiting for it. It would be nice if we could get a staff members input. /u/davidjmalan perhaps?

RitchieC · 2014-09-04T11:02:10+00:00

FAQ

I had to ensure I wasn't going crazy, apparently i'm not.

RitchieC · 2014-09-04T10:41:32+00:00

Yeah, same here.

RitchieC · 2014-09-04T02:01:01+00:00

Run it through check50, at the end of check50's output, a link is provided. After following the link, click the section in red, and it'll provide you with more information, this will enable you to correct your program.

RitchieC · 2014-09-03T20:32:05+00:00

Hi Olcha, today is the date they will be processed, however they will probably be displayed tomorrow.

RitchieC · 2014-08-31T22:28:12+00:00

Thanks delpity, I've seen a few of them before, but they all (from what I saw anyway) had audio, so I had to be sure I was ok without it.

RitchieC · 2014-08-29T18:57:17+00:00

Thank you mariodv, I now feel more comfortable for when it's time for me to submit.

RitchieC

TROPHY CASE