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- This is CS50x, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming for majors and non-majors alike, with or without prior programming experience. An entry-level course taught by David J. Malan, CS50x teaches students how to think algorithmically and solve problems efficiently.
www.edx.org › learn › computer-science
People also ask
What is CS50 EDX?
Does CS50x use EDX's gradebook?
What is CS50x & how does it work?
What is a CS50 certificate?
The on-campus version of CS50x , CS50, is Harvard's largest course. Students who earn a satisfactory score on 9 problem sets (i.e., programming assignments) and a final project are eligible for a certificate. This is a self-paced course–you may take CS50x on your own schedule.
This is CS50x 2024. 🎉 Curious how your 2023 work counts toward the 2024 course? See our FAQs if you started in 2023 or earlier. Interested in a verified certificate, a professional certificate, or transfer credit and accreditation?
Thru edx, you can submit your assignments to be graded (by a program that checks if it gives the right output). Otherwise it's just a wrapper around the harvard website. When you finish the course on the Harvard website you get a free certificate from the harvard website.
- Assessments
- Certificates
- Deadlines
- Eligibility
- Grades
- Support
Does CS50x have a test or quiz?
Nope! CS50 at Harvard does have a test and quiz, but CS50x does not.
What’s the difference between “less comfortable” and “more comfortable” problems? Do I have to do both?
In some earlier problem sets, you’ll have a choice between a “less comfortable” and a “more comfortable” problem. The “less comfortable” are what you might consider the “standard” version of the problem, designed for students who have little or no prior experience. The “more comfortable” are the “challenge” version, designed for students who consider themselves more comfortable due to prior study/experience before this class. As such, they may require more concepts than have been covered in t...
If I submitted a problem and did not reach the 70% passing grade, can I resubmit?
Yes! You may resubmit; we will only count your most recent submission towards your progress.
I completed CS50x in 2021 (or prior). Why does my Gradebook no longer show me as having completed the course?
CS50x is a course that spans multiple years, but has a content refresh on 1 January each year. Your gradebook will only ever reflect your completion status of the current version of the course (which is now CS50x 2022), even if you have completed the course in a prior year. If you wish to get the green banner back, you can complete whatever assessments are missing for the current version of the course, but your free CS50 Certificate is still available at certificates.cs50.io, and eligibility...
Do I have to pay for verification before starting the course?
Nope! If you would like a verified certificate from edX, you can pay for verification at any point, even after completing all of the coursework. Though we do recommend, to avoid any logistical issues that can delay certificate issuance, that you verify before finishing the course. Otherwise, the 30-day wait we reference belowonly starts once you have had your identity verified by edX.
If I paid for a verified certificate before 2022, do I need to pay again?
No, your verification should be good for an entire year, but if it has expired, you should be able to re-verify yourself via edX’s dashboard.
If I don’t finish the course before 31 December 2022, what will happen?
On 1 January 2023, the course will be updated to a 2023 version. Your progress from 2022 will be carried forward to the 2023 version (see below). After 31 December 2022, you may only submit the 2023 version’s problem sets and will need to satisfy whatever requirements are in place for CS50x 2023. Your carryover progress (as described below) from 2021 or prior will notcarry forward into 2023, however.
If I started CS50x before 2022, can I resume?
Yes, any progress you made on past years’ problem sets has been carried forward to your CS50x 2022 gradebook. Note that individual problem scores from past years are not shown, but if the corresponding problem setand lab was completed, you’ll see it marked with a green circle and included in your progress bar at the top. Moving forward, though, you must submit CS50x 2022’s problem sets and labs. Here is how you should transition from the 2021 course to the 2022 course:
When are deadlines?
CS50x does not have individual deadlines for assignments. You are welcome to work on and submit at your own pace. The overall deadline for the course is end of day, Eastern time, on 31 December 2022 (Saturday, December 31, 2022, 11:59 PM EST). For your convenience, we will often on this website render this time in your local timezone (2022-12-31T23:59:00-05:00). If all required work is turned in before the above time, and ultimately receives a satisfactory grade (whether before or shortly aft...
Is my child too young to take CS50x?
CS50x is perhaps best suited for ages 13 and up. Some of the software tools that the course uses require a minimum age of 13 to sign up. Therefore, younger students might need a hand from a parent in getting set up.
If my style score is not as expected, why might that be?
Your style grade will be based on the style50 results for every source code file in your submission. When you run submit50, be sure that your folder includes only those files that are necessary for the problem set. If you have any extra test files in there, those will be counted towards your grade. Remove the extra files from the folder and resubmit to get an updated Style score.
Why does edX think my grade is 0%?
CS50x doesn’t use edX’s built-in gradebook, so all students’ scores appear (in edX’s gradebook) as 0%, always. Not to worry, see cs50.me/cs50xfor your actual scores. (Note that if you have carryover credit, as described in a question above, you will not see the individual scores for those weeks.)
Does CS50x have office hours?
Not regularly! Afraid CS50x is too large, but you can still ask questions in any of CS50’s communities!
Does CS50x have sections?
Afraid not! CS50x is too large, but you can still ask questions in any of CS50’s communities!
4 days ago · We offer many courses. For each, we offer verified certificates for a fee and a free certificate. Verified certificates involve a verification process through edX and, therefore, may be regarded by others as more authentic. Free certificates are issued using a unique URL.
How do I get my edX Verified Certificate? What’s the difference between a verified certificate and a CS50 Certificate? When are deadlines? My Style grade is not what I expected. Why might that be? Why does edX think my grade 0%? Does CS50x have a test or quiz? Nope!
