Unanswered Questions
2,085 questions with no upvoted or accepted answers
5
votes
1answer
2k views
How to install and compile the Stanford Portable Library on windows?
Self-explonatory title, I can't install the appliance for some reasons - Google just left me pretty confused - I would like to use the Stanford Portable Libray in a windows enviroment.
I am using ...
4
votes
2answers
869 views
CS50 Finance/pset8 2019 /check
I am trying to write the script for a form such that if a username is taken, the user is alerted that it is taken, and submission of the form is blocked. If the username then types in the correct ...
4
votes
0answers
658 views
cs50w project1 - AttributeError: 'NoneType' object has no attribute '_instantiate_plugins'
I am trying to import the books.csv file into the online PostgreSQL database via Python code, as shown in the lectures and I get this error message when sqlalchemy is attempting to create the engine. ...
3
votes
1answer
214 views
Whodunit No Files
I'm about to start pset3, but the terminal keeps disconnecting, and so I refresh the page. When it opens again, the CS50 Lab no longer has any of the files, and I can't see what the copy.c files does ...
3
votes
1answer
733 views
PSET 2 - Can Crack be implemented for 5 characters in a more efficient way?
Okay, so I've finished the crack problem, and it runs, but since the pset2 now tells us the passwords can be upto 5 characters long, it takes about 48 minutes to get the password match for "zzzzz".
...
3
votes
0answers
57 views
Google Earth frame is displayed in front of javascript alerts
When I click start engine in the right rail of the application, an alert is displayed behind the Google Earth frame of the Harvard Yard.
I cannot click on any items that are displayed on this alert, ...
3
votes
0answers
159 views
Functions returning a value?
I'm trying to implement multi-dimensional arrays in Scratch, for an implementation of maze generation.
To simplify, I'd like to implement a couple of custom blocks which return a value, e.g. ...
2
votes
1answer
103 views
Compiler Can't locate CS50 library locally
I'm trying to work on my C psets on my local machine in vscode. I've installed the cs50 library locally but am having trouble compiling. OS is osx 10.14.3
The error I'm receiving when compiling with ...
2
votes
1answer
73 views
Why do cs50/2018/x/speller, cs50/2018/x/mashup show looks good but give 4 / 5 for style?
I have run update50 and I'm still not seeing any style errors but I'm still getting 95% and 4/5 for style?
2
votes
1answer
339 views
CS50's Web Programming with Python and JavaScript on edx project submission
On the following course on edx:
CS50's Mobile App Development with React Native
CS50's Web Programming with Python and JavaScript
I have been trying to submit the project work but it is "Coming Soon!" ...
2
votes
1answer
187 views
CS50.io - python 3.6 breaks submit50
I just ran update50 before trying to submit my final project but after doing that and trying to run submit50 the new version of python seems to have broken from what I have seen researching the error ...
2
votes
0answers
717 views
How to call the usd function in the jinja template of quoted.html?
I want to display the cost of the share in Quote tab using the "usd" function defined in helpers.py.
I've tried adding app.jinja_env.globals.update(usd=usd)in application.py and then calling the ...
2
votes
1answer
93 views
Who I can connect if my problem set 0 haven't been graded?
I have submitted 6 problem set from 0-5, but only the problem set 0 haven't been graded. Who should I contact to inform the ungraded problem set?
2
votes
2answers
83 views
Difficulty submitting PSET7 to be graded
My pset7 zip file is about 700kb, i click in "Add files..." button and select pset7.zip, next i click the "Start upload" button, the uploader appears to fill pretty fast as normal but it doesn't ...
2
votes
1answer
104 views
Problem with the cs50 ofline ide text editor
the cs50 offline ide shows some loading window with the scratch pieces at left panel when trying to save a C file and keeps on loading.
i had restarted my laptop and again reopened the ide in google ...
