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CS50

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This is CS50's (and CS50x's) official Facebook group. All posts should be directly related to CS50. Off-topic posts may be deleted. ♥

CS50 is Harvard University's introduction to the intellectual enterprisesMehr of computer science and the art of programming. Anyone may take CS50, even if not a student at Harvard.

To teach or take CS50 for AP credit, see https://cs50.harvard.edu/ap.

To audit or pursue a Verified Certificate through edX, see https://cs50.edx.org/.

For (transferable) course credit from Harvard Extension School, see http://www.extension.harvard.edu/academics/courses/intensive-introduction-computer-science/24107.

For OpenCourseWare, see https://cs50.harvard.edu/x.

For YouTube, see http://www.youtube.com/cs50.

For cats, see https://www.google.com/search?q=cats&tbm=isch.

Ankündigungen

Doug Lloyd, profile picture
BE SURE TO READ THIS POST FULLY BEFORE COMMENTING
We've noticed a lot of people posting/attempting to post recently looking to form some study groups or find a study partner for CS50. A very good idea(!), but we'd prefer to keep the number of threads about this to a minimum so as to avoid cluttering everyone's feed, and instead centralize everythingMehr in one place.
If you are looking for a partner, please feel free to comment on this post or search back through previous comments to find someone who already did. If you posted before and no longer need a partner, just delete your comment from this thread. When you form a study group, be mindful of the course's policy on academic honesty.
DO NOT POST OR REQUEST PHONE NUMBERS (INCLUDING WHATSAPP) OR EMAIL ADDRESSES HERE IN THE GROUP. That is not allowed. You are allowed to include your preferred spoken language in your request though, if you want. Instead, take your conversation to a direct messaging thread for that exchange.
If you see a comment that contains or requests personal information, please immediately report it to the moderators.
Neueste Aktivität
Karen Stoodley, profile picture
Weitere Optionen

I've been working on the Credit assignment for a couple of weeks now. (I've completed and passed Cash, but want as full an education from this course as possible so have given Credit a go). My code compiles without error, but declares most (but not all) .card numbers as Invalid. Chat GPT - who is my personal tutor - can't identify the error, how do you go about combing through it all to find the place where it is going wrong. (I won't bother to include the code as it is more of a philosophical question)

Jonathan Garcia, profile picture
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I have a very general question rather than an issue. I have an odd conundrum. I am currently working on the "just setting up my twitter" assignment. I have created a program that technically meets the criteriaMehr of the assignment.
But there are no lists, loops, or dictionaries in my code, the very things we covered in the lecture. While I am a firm believer in "you are technically correct, the best kind of correct", this doesn't feel quite right. Am I over thinking this or should I just submit the program as is?

Any feedback is greatly appreciated.

May be an image of text that says 'YOU ARE TECHNICALLY CORRECT... ..THE BEST KIND OF CORRECT'
Jide Martin-Luther, profile picture
Weitere Optionen

In lab6, in the simulate_game( ) function, there is the following snippet of code:

def simulate_game(team1, team2):
"""Simulate a game. Return True if team1 wins, False otherwise."""
rating1 = team1["rating"]
rating2 = team2["rating"]

the parameters team1 and team2 appear to be referring to the list teams[ ] (with an "s"). However, I can'tMehr understand how python "knows" that team1 and team2 are referring to two consecutive teams' ratings in the dictionaries within the teams [ ] list. What gives those two, seemingly arbitrary parameter names the ability to do that?

I really hope my question is well understood..

Lyle Kelly, profile picture
Weitere Optionen

Edit: FIXED

Working on problem set 4 filter. Everything works fine except for grayscale, I keep getting these errors when I run check50.
I had a similar issue with sepia until I remembered to include round in the formula, but it didn't seem to fix my issue in grayscale and I can't figure out what's wrong.

Keine Fotobeschreibung verfügbar.
Ist möglicherweise ein Bild von Text „Cause expected "28 28 28n", not (grayscale correctly filters single pixel without whole number average 27 27n" Log egl(27,28,28) (27, 28, testing with pixel running ./testing 1... checking for output "28" 28 28n"...“
Ist möglicherweise ein Bild von Text „Cause expected "20 grayscale correctly filters more complex 3x3 image 20n50 5...' not "20 20n50 testing with sample 3x3 image first row: (10, 20, 30), (40, 60), (70, 80, 90) second row: (110, 130, 140), (120, 140, 150), (130, 150, 160) third row: (200, 210, 220), (220, 230, 240), (240, 250, 255) running ./testing checking for output 248 248n".. '20 20 20n50 50 50n80 Expected Output: 80n127 127 127n137 137 137n147 147 147n210 210 210n230 230 230n248 27 137 Actual Output: 20 147 210 210 230 230 248 248 248 126 136 210 210 230 230 248 248 248“
Keine Fotobeschreibung verfügbar.
Dawn Michelle Pegg Schwaderer, profile picture

How do grades show up in CS50.me? In Submissions I can see all my submissions, but it's been over 2 weeks on some and I see no change (I would like to know how I'm doing). Do they show up in Comments? Thanks!

GITHUB.COM

Build software better, together

GitHub is where people build software. More than 23 million people use GitHub to discover, fork, and contribute to over 64 million projects.
Gil da Silva, profile picture
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Hello everyone! Can someone help me about Problem set 2 - Readability?
After running check50 I'm getting only one error that has to do with handling one sentence with multiple words where the expected grade should be 7 but I get Grade 8. I've been debugging for 2 days and I don't seem to find the error...

Ist möglicherweise ein Twitter-Screenshot von Text „(handles single sentence with multiple words Cause expected Grade 7n", not Grade 8ln" Log running /readability... sending input younger and more vulnerable years my father gave checking for output Grade ån” Expected Output: some advice that 've been turning over in ny mind ever since.... Actual Output:“
Wojciech Grodzicki, profile picture
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With CS50X under my belt, it's time for CS50W 😄 This is my Project 0, Search: https://64397804d3e3b600089914ba--fastidious-licorice-7b9083.netlify.app/
Nothing fancy, but I'm very excited to learn more about web development!

YOUTUBE.COM

CS50W Project 0: "Search" (search engine front-end)

I'm Wojciech and this is my first project for the Harvard web programming course CS50W (2023)."Search" is a recreation of the Google search engine front-end....
David J. Malan, profile picture
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Live from Harvard University at 1:30pm EDT, a CS50 lecture via Zoom and YouTube on writing to databases, which includes inserting, updating, and deleting data with #SQL. Open to all at Mehrhttps://cs50.zoom.us/meeting/register/tJAof-Csrz8pHNEYufHWYgkf5VlGL-KLMfnI and https://youtube.com/live/Dhyz-UE3qqw.
Convert to your own time zone at https://time.cs50.io/20230414T1330-0400/PT2H.
#education #community

YOUTUBE.COM

CS50 SQL - Lecture 3 - Writing

A live lecture on writing to databases, which includes inserting, updating, and deleting data.***This is CS50, Harvard University's introduction to the intel...
Mariusz Formantowicz, profile picture
🥳🥳🥳
What a journey it was! Started in the mid of January, finished yesterday. I found the most joy in web development and therefore I am planning to take CS50W as well.
I would like to say big thank you to wholeMehr CS50 staff and all group members which kept me going with this course. You're the BEST!
I keep my fingers crossed for all who struggle with any assignments along the way! You can do it!
Ist möglicherweise ein Bild von Plakat und Text „CS50 Certificate CS50 congratulates Mariusz Formantowicz on completion of CS50x, including ten problem sets, nine labs, and one final project. Awarded from Cambridge, Massachusetts, in the year two thousand wenty-three. DavidJ. Malan Gordon McKay Professor the Practice of Computer Science Harvard University (“
Doug Lloyd, profile picture
BE SURE TO READ THIS POST FULLY BEFORE COMMENTING
We've noticed a lot of people posting/attempting to post recently looking to form some study groups or find a study partner for CS50. A very good idea(!), but we'd prefer to keep the number of threads about this to a minimum so as to avoid cluttering everyone's feed, and instead centralize everythingMehr in one place.
If you are looking for a partner, please feel free to comment on this post or search back through previous comments to find someone who already did. If you posted before and no longer need a partner, just delete your comment from this thread. When you form a study group, be mindful of the course's policy on academic honesty.
DO NOT POST OR REQUEST PHONE NUMBERS (INCLUDING WHATSAPP) OR EMAIL ADDRESSES HERE IN THE GROUP. That is not allowed. You are allowed to include your preferred spoken language in your request though, if you want. Instead, take your conversation to a direct messaging thread for that exchange.
If you see a comment that contains or requests personal information, please immediately report it to the moderators.
Raquel Liberato, profile picture
Weitere Optionen

Hello, I'm on PS1 (Mario) but I'm struggling with the dots. I was wondering if I have to define a dot variable with some formula like dot=8-n?? It doesn´t seems to work how I'm doing. It isn´t calculating the correct amount of dots needed.

Ist möglicherweise ein Twitter-Screenshot von ‎Text „‎EXPLORER 129998055 [CODESPACES] mario.c L pseudocode.txt hello hello. mario-less 27 printf(" for (height height n; height++) mario.c pseudocode.txt population 6 pset1 ا population � population.c (int column ፀ; column < height; column++) printf("#"); 35 pri("n"); 38 PROBLEMS OUTPUT DEBUGCONSOLE TERMINAL PORTS make mario ./mario COMMENTS Stored: 6 ### OUTLINE ##### mario-less/‎“‎