Questions tagged [cs50x2017]
The cs50x2017 tag has no usage guidance.
24
questions with no upvoted or accepted answers
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CS50 Final Project: Unique URL for each user of my flask app (2 of 2)
I have a pending question here: CS50 Final Project: Unique URL for each user of my flask app (posted two days ago) regarding the implementation of unique URLs. This unanswered question was in fact ...
- 121
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37
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Map not appearing
I implemented the configure() function. It worked for a few days but after that the map did not appear. There is only the search textbox which also doesn't work now. When I check the javascript ...
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1
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330
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IDE is not letting me hash the password. Should I change th hashing algorithm as it tells me to?
I implemented the register function for pset7. It went to the register page that I had implemented. I gave the required credentials and clicked Register. But instead of registering with the ...
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53
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Submissions from previous courses
I finished cs50x a few days ago and I would like to get a certificate at edX. However, cs50x2018 has started and my scores from 2017 have disappeared at cs50.me. Is there any way to recover them?
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Can I complete CS50 for a verified certificate after 31 Dec via Edx?
I don't know if I can make the CS50 course by 31 Dec. I planned to get a certificate. What would happen if I upgrade the course to get a verified certificate and then not finish it this year, but some ...
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CS50 Pset3 "Fifteen" Works but doesn't pass Check50
My code for pset3 "fifteen" works perfectly when I play it—board sizes fit, goes in descending order, blank space prints as a 0 etc. etc. but for some reason, it won't pass any check50 checks past "...
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290
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How are script.js and application.py linked?
Question
Why am I able to pipe variables from my database into my script.js file? I was able to pipe in "{{place_name}}, {{admin_name1}}, {{postal_code}}".
script.js
// configure typeahead
$("#...
- 31
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Enjoying CS50, asked a question on SO (before I knew about this) and some of the comments have me concerned about CS50 now
Check out the comments in this answer to my question:
https://stackoverflow.com/a/46768605/8561378
What's going on here? How can the reputation of CS50 be bad, or the "first chapters" definitely be ...
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27
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Can someone help with what is wrong with this code? Seems something is being overwritten
Firstly, I am getting some valgrind errors. Secondly when I debug the code it seems as if trav gets overwritten. As in, if I am reading caterpillar from the dictionary, it seems to start over again a ...
- 103
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135
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After update50, my texts shown in text editor are still plain white
I am ready to do pset2! However, after I run update50 and close and re-open terminals, I found that my texts in text editor are all white as below:
I found a question asked before here, and I did run ...
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2
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63
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pset4 recover Segmentation fault
my code can compile but when running it will return Segmentation fault.
And when I apply "echo $?" to the code, it would return 139.
Here is my code.
/**
* Copies a BMP piece by piece, just because.
...
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1
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76
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CS50 Pset7: Pset7 questions in preparation for final project
I have two questions arising from this problem set which I think can eventually help me with implementing my final project:
Atop every page of the stock trading website, whether it be the LOGIN, ...
- 121
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101
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Vigenere - is there a simpler logic behind it?
My code for vigenere.c works for check50, but ends up being much longer than caesar.c in the encipher part.I was wondering if I was missing a simple point and have meandered through the logic behind ...
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80
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CS50 Vigenere code gives incorrect when detecting a non-alphabet char for plaintext
My vigenere code works fine when a single char or string is entered, however as soon as it detects a space in plaintext it gives wonky values. Please help!
#include <cs50.h>
#include <stdio....
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238
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Here's my code for "Greedy" . It works perfectly. Yet I got a score of 69. Could someone please tell me what's wrong with it?
#include<cs50.h>
#include<stdio.h>
int main ()
{
**float f;
do**
{
**printf("O hai! How much change is owed?\n");
f = get_float();**
}
**while(f<0);
...
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1
answer
32
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Everything's working in manual testing, but cs50 says 4x4 not working (pset3 fifteen)
Source code for init:
void init(void)
{
int k=(d*d)-1;
for(int row=0; row<d; row++){
for(int col=0; col<d; col++){
board[row][col]=k;
if((d%2==0)&&(k==3)){
...
0
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1
answer
134
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Problem with Total (stock price * number of shares) and Number of Shares Value in Portfolio on Index
Just recently, on my implementation of CS50 Finance, I bought 4 shares of Netflix, and then another 2, but instead of showing 6 shares on the Portfolio, it's only showing 2. The "Total" value for the ...
- 83
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205
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No markers are showing and gives me a 500 error
I am slowly progressing, first I couldn't see the map and I fixed that issue but I cannot see articles, locations, etc. Every time I type a place it gives me the error 500. Any help would be ...
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47
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Logic error in "index" CS50x2017 Finance (and also help needed in "buy")
I need some help in index and buy. I'll get back to sell after that again as there are some problems in there still.
First, here's a screenshot of my transactions table: https://1drv.ms/i/s!...
- 83
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"jinja2.exceptions.UndefinedError: 'grand_total' is undefined" Pset7 Jinja2 and Python error
I'm still working on sell right now. After writing up my code for the route itself and then trying to test it, I found that I had a logic error on index.html and the index route with the USD amount ...
- 83
0
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1
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1k
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byte-compiling disabled? Warning when running "pip3 install --user -r requirements.txt" command
When I ran the command "pip3 install --user -r requirements.txt" to download the dependencies for Sentiments in Pset6, it give me these messages as a result:
Requirement already satisfied (use --...
- 83
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1
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182
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CS50 2017 vigenere.py Issues "TypeError: not all arguments converted during string formatting"
As the title suggests, I have a "TypeError: not all arguments converted during string formatting" error in vigenere.py for Pset6.
Here's the code:
import cs50
import sys
if len(sys.argv) == 1 or ...
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1
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178
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Problem Set 6 CS50 2017 Caesar Issue TypeError: 'str' object does not support item assignment
As the title suggests, when I tried to run my current code for Caesar.py, I got the error message "TypeError: 'str' object does not support item assignment" from the interpreter.
My code is like this:...
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-1
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1
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902
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Pset7 CS50x2017 CS50 Finance register route
Could someone please point to where I can see how to check in the register route if a username already exists in the database and also whether the user entered the same password in the confirmation ...
- 83