Questions tagged [pset1]
The problem set for Week 1 introduces the C programming language.
1,186
questions
0
votes
1
answer
20
views
Relational comparison unused in pset1 cash
I have a relational comparison unused and my code fails to compile.
int get_cents(void)
{
// TODO
int cents = 0;
do
{
cents = get_int("Total cents owed: &...
- 3
0
votes
0
answers
22
views
What do you think about my code here?
#include <cs50.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
long long credit_num;
credit_num = get_long_long("credit number: "...
-1
votes
0
answers
14
views
cash does not work anymore
Yesterday, my code worked. Today, the code doesn't work anymore. Both times I tried check 50. Yesterday everything was alright but today it wasn't. What happened?
0
votes
1
answer
22
views
PSet 1 Mario Less - cube instead of expected stair
I was expecting to see this code print out the stair with the dots, as suggested by the pset instructions. But this is printing out a square, like David's code. But why? What should I do here?
for ...
- 1
0
votes
1
answer
13
views
For Loop to look through all values of an Array
So, I am learning C using cs50 and a problem I have run into is that although i have yet to learn about arrays, I need to use arrays for my problem set. I would really appreciate it if someone could ...
- 3
0
votes
0
answers
16
views
Methods to run code not working
Whenever I try the ./ method to run the code, it simply doesn't work and keeps telling me its a directory. How else am I supposed to complete the course if the fundamental motor to run the code won't ...
0
votes
1
answer
21
views
How to Solve : expected identifier or '('
here is my code:
#include <stdio.h>
#include <cs50.h>
//Declaring User-Defined Functions
int last_digit(int sum3);
int main(void)
{
//Promting the user for credit card number
...
- 3
0
votes
2
answers
46
views
variable used in loop condition not modifies in loop body
im struggling with pset1 cash exercise, when im defining a calculate_quarters() and other in the same way i got an error. the task is to find out the number of quarters, dimes, nickels and pennies to ...
- 3
0
votes
2
answers
34
views
pset1-credit I can't find the issue with my code
the program prints invalid for valid card I know that my mistake is probably really dumb, but I can't find it (sorry for bad english)
#include <cs50.h>
#include <stdio.h>
int main(void)
{
...
- 3
0
votes
1
answer
31
views
pset1 credit 2023 , do while loop with arrays/intervals
#include <cs50.h>
#include <stdio.h>
int main(void)
{
long n;
do
{
n = get_long("13 digits or at max 15, 16 card number: ");
}
while(n < ...
- 3
0
votes
0
answers
15
views
Unpredictable counter behavior - pset1
I am working on the problem set 1, the credit problem.
My plan is to split the user entered number into individual digits, and put them in an array.
To start
int l = 0; // length of number
int count = ...
0
votes
1
answer
34
views
What can I add to my code to solve the practice problem set 1 week 1. The question is giving the prime numbers between the inputs minimum and maximum
bool prime(int number)
{
// TODO
int newnum = number % 2;
if (newnum > 0)
{
return number;
}
else
{
return false;
}
return number;
}
- 1
0
votes
1
answer
16
views
I'm getting a floating point exception error in the credit code but I definitely haven't divided by 0
Here is the code:
int sum1(long long n)
{
int sum1 = 0;
int x = 0;
for (long long i = 100; (n % i) <= n; i *= 100)
{
x = 2 * ( ( (n % i) - (n % (i / 10)) ) / (i / 10) );
...
1
vote
0
answers
57
views
rejects invalid populations and then handles population 20
#include <cs50.h>
#include <stdio.h>
int main(void)
{
int n;
int End;
// TODO: Prompt for start size
do
{
n = get_int("Start size: ");
}
while ( n < 9);
// TODO: Prompt for ...
- 11
1
vote
2
answers
132
views
I don't what number means in PRIME/LAB1
everyone, I've stuck with this problem for a few days, I found some kind of resolution for it, but I don't understand what means number. I will really appreciate if anyone can explain me more
0
votes
1
answer
28
views
Getting "use of undeclared identifier" and can't solve it without ruining my code
i've been working on the mechanism to get every other number of the credit card number, and this is what i've come up with so far:
int get_credit(void);
int check_sum(int number, int a);
int ...
- 35
0
votes
1
answer
41
views
pset 1 mario less comfortable
I don't know how to put the dots. In walkthrough we are told come with formula but I don't know how to come up with formula. I have no idea what to do.
}
0
votes
1
answer
487
views
cs50p problem set 1 - meal.py (don't understand prescribed structure)
I don't understand the purposed of the last two lines in the prescribed structure / how to format program in this structure.
Prescribed structure:
def main():
...
def convert(time):
...
if ...
0
votes
2
answers
34
views
PSET 1 - Mario Less - Missing one last thing
I am missing one thing in the code because it's printing me the dots in every height case.. Can anyone give me a hint how to solve that ?
int main(void)
{
int n;
do
{
n = get_int("Height: &...
0
votes
1
answer
190
views
Week 1 Lab 1 Population size
Im currently working on Lab 1 regarding the population size of llamas, and everything went smoothly however even though I am in the population_size folder and inside the file population.c right now, ...
0
votes
1
answer
38
views
pset 1 mario style
I don't understand what is wrong about the style. Style50 indicates there is a problem with "int height" and "printf(" ");" in the k inner loop. Can someone explain what ...
- 3
0
votes
1
answer
1k
views
CS50 Lab 1: Population Growth
I am stuck at this one. I just need somekind of a hint to move on I guess. I do not want to take a look at "Walkthrough". I need help with for loop. I cannot think of any condition that ...
0
votes
1
answer
47
views
this program is supposed to be greedy algorithms that meant to count the number of coins to make the change owed = 0 , the output is always less by 1
#include <cs50.h>
#include <stdio.h>
int get_cents(void);
int calculate_quarters(int cents);
int calculate_dimes(int cents);
int calculate_nickels(int cents);
int calculate_pennies(int ...
- 3
0
votes
1
answer
21
views
Submit50 giving different results from manual input
Doing the population growth (Week 1 Lab 1), and here's my code:
#include <stdio.h>
int main(void)
{
int start = 0;
while (start < 9){
printf("Start size: ");
...
0
votes
1
answer
33
views
My pset1 (cash) code compiles but the outputs are wrongs. Could you Help me?
This is the code:
#include <cs50.h>
#include <stdio.h>
int get_cents(void);
int calculate_quarters(int cents);
int calculate_dimes(int cents);
int calculate_nickels(int cents);
int ...
0
votes
0
answers
8
views
what is this and why this is showing from a long time i dont know the reasom plz help me
problem came after rebuild don/t know what's the issue hope you will help me
0
votes
0
answers
18
views
i can not see my mistake here i feel code should be correct can you please help
#include <cs50.h>
#include <stdio.h>
int main(void)
{
// prompt for height between 1 to 8
int height, row, column, space;
do
{
height = get_int ("Enter height: &...
- 3
0
votes
0
answers
28
views
CS50 PSET1 MARIO Pyramid inverted
I am beginner in coding. I have drafted the code to build 1 pyramid for Mario. However, it's coming inverted... Any ideas?
int height;
do
{
height = get_int("Height: ");
}...
- 1
0
votes
1
answer
78
views
pset1:Credit (always outputs INVALID)
Whenever I input any card number into the program it outputs INVALID. I think the issue has something to do with not finding the first digits (int fdig) correctly because I used a print function ...
0
votes
1
answer
36
views
there is a logical error I can't really catch up with
Output:
Results for cs50/problems/2022/x/credit generated by check50 v3.3.7
:) credit.c exists
:) credit.c compiles
:) identifies 378282246310005 as AMEX
:) identifies 371449635398431 as AMEX
:) ...
0
votes
1
answer
16
views
In my CS50 mario program I'm getting an error which shouldn't be happening (C)
I have a program which it is supposed to print Mario-like towers on each side corresponding to the amount you input. Everything seems to work but when I try to check the code it gives the error ":...
- 3
1
vote
1
answer
60
views
Problem with check50's result for pset1 mario less
I think my code can correctly print the pyramid,but it result errors in check50.
What does that error in check50 means?
Results for cs50/problems/2022/x/mario/less generated by check50 v3.3.7
:) ...
- 11
1
vote
0
answers
369
views
CS50py meal problem set 1 please help:)
This is my code for meal in problem set 1, when i manually input times the returned answer is correct but when i do check50 it says "Did not find "7.5" in "Breakfast\r\nI..."&...
- 11
0
votes
0
answers
26
views
Text is invisible in terminal
I can't see anything I type in my terminal. I can type a command + enter and the command is executed but still not see the text this happens every time I open VS code.
- 1
0
votes
1
answer
43
views
Output problem credit
Finished my credit problem, whit the code below, but when I check it with check50 everything fails despite the output on the terminal being correct when I check manually.
Code:
#include <cs50.h>
...
- 1
0
votes
2
answers
60
views
am stuck at calculating quarters in the greedy algorithms
i am new to coding. how do i calculate after input of the user how many quarters they get then remainder to go next function
0
votes
1
answer
16
views
how can i get for it reprompt if the user types negative integer or number more 8 . my code does the oppoiste of what i want it to do how do reprompt
I want to prompt user for range to print something but if it user puts negative or more 8 to reprompt.
0
votes
1
answer
20
views
PSET1: Greed algorithm not printing not returning numbers requiring pennies
My cash program won't return number that require pennies. For example, 5, 10, 15, 20, etc. will work fine, but 1, 2, 3, 4, 6, etc. will not print. I am guessing there is an issue with something ...
- 3
0
votes
0
answers
11
views
when loop is given number like this i<333000000000000
it can't process the same, probably it's a bug .this is the snippet of my code. if you see the terminal you can notice when printing meow it, again and again, is twitching. I request to please look ...
0
votes
1
answer
112
views
Dealing with pset1's "credit" problem
I was trying to solve this problem. I did some coding:
#include <cs50.h>
#include <stdio.h>
int get_digit_number(long card_number);
int main(void){
bool valid;
long card = get_long(&...
0
votes
1
answer
38
views
Error in compiling hello
When i try to compile hello.c i get the error that vis studios thinks the file is named studio.h
0
votes
0
answers
69
views
CS50 Cash 2022 - Functionality / Prompt Bug
*I am incredibly new to all of this, it's possibly operator error due to lack of familiarity with the software
I actually understand the math and the set-up of the code, but I don't understand VS code ...
- 1
0
votes
1
answer
14
views
Timed out and Pattern changes
I have two issues with my program.
When I command check50 I have "timed out while waiting for program to exit" in different lines of my program. I've already searched for an answer to solve ...
0
votes
2
answers
49
views
pset 1 mario less. My Code is printing in single row. I cant find what wrong with it
#include <cs50.h>
#include <stdio.h>
int main(void)
{
int n;
do
{
n = get_int("Height: ");
}
while ((n < 1) || (n > 8));
for(int i = 0; i &...
0
votes
1
answer
56
views
Pset1 Mario-More. When i try to compile it says "height" is uninitialized and i need to give it a value but isnt that what the "get_int" is for?
#include <cs50.h>
#include <stdio.h>
int main(void)
{
//get height
int height;
do
{ get_int ("Height: ");}
while ( height <1 || height >8);
//
for (int y = ...
1
vote
1
answer
51
views
tilde ~ not showing in ssh set up
I've started Pset 1 and I'm currently implementing my codespace.
After executing ssh-keygen, I have to execute cat ~/.ssh/id_rsa.pub. However, the tilde '~' does not appear in the vscode terminal and ...
- 21
0
votes
1
answer
509
views
CS 50 Pset 1 cash: non-void function does not return a value
I have finish a program and it can run smoothly on other platform like replit... But one I run it on vs code it shows the following error and it also have something weird happen when I run check 50 ...
0
votes
1
answer
287
views
check50 issue on Problem Set 1: cash [duplicate]
I have finish my cash homework enter link description here
But I face an issue that I can't check it even when I run the program successfully. My code is as below:
#include <stdio.h>
#...
0
votes
4
answers
2k
views
Cant get Codespace to work
Im up to the "Hello" module, week 1. Ive never programmed before so setting up copespace has been quite frustrating. I cannot get it to work. Can someone please help me? I want to get ...
1
vote
1
answer
227
views
Check50 and style50 not working: pset1
I am getting this error when I am trying to use check50 or style50. Please help me with this.
hello/ $
hello/ $ check50 cs50/problems/2022/x/hello
Traceback (most recent call last):
File "/usr/...
