Questions tagged [credit]
35 questions with no upvoted or accepted answers
1
vote
1
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Week 1 - Problem concerning question on 'credit'
Consider:
#include <cs50.h>
#include <stdio.h>
int main (void)
{
//User's Input
long n = get_long("Number: ");
int sum_of_odds = 0;
int sum_of_evens = 0;
...
- 11
1
vote
0
answers
787
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Every 2nd digit on Pset1 Credit problem: Tldr bolded
Im struggling with manipulating the string of numbers in the credit problem. I've figured out how to divide the initial input number by 10 (*100 each iteration) then mod % by 10 in order to access the ...
- 11
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2
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Code for problem set one, Credit not working
I have completed the other set one problems, and wanted to test myself with "Credit". I read through the problem and walk through and wrote code that I believed would work. I tested the code ...
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0
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35
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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: "...
0
votes
1
answer
30
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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
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1
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52
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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
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1
answer
150
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CS50 problem set 1 CREDIT works sometime but not always
I am very new at coding and taking CS50. I am currently working on the credit problem in week 1. I finished coding but when I ran check 50 my code only seemed to work for some of the card numbers and ...
0
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1
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113
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My do-while loop does not work
do
{
number = get_long_long("What is your credit card number? ");
}
while((number < 1000000000000) || (number >= 10000000000000000));
This loop is not accepting inputs. I do not ...
0
votes
1
answer
48
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Pset1 Credit - Why is my code bypassing the Floor function inside If statement?
Here's my code-
int f_1 = floor(N / 1000000000000000);
int f_2 = floor(N / 1000000000000);
int f_3 = floor(N / 100000000000000);
int f_4 = floor(N / 10000000000000);
if (...
0
votes
1
answer
88
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pset1 credit: I am unable to identify what's wrong in the logic of my code?
Kindly tell me what mistake have I made in this program? pset1 Credit: (my code) https://pastebin.pl/view/5646dbf1
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Can anyone help me troubleshoot my code for the CS50 Credit problem? (**not trying to cheat, just need some help!)
This is the code I have written in c for the cs50 credit pset 1 problem.
I am checking the length of numbers entered, and the first digits (AMEX 15 digits, starts with 34 or 37; MC 16 digits, starts ...
- 3
0
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1
answer
47
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trouble summing the sides on credit
I have made it to the point it separates every digit into two sides so as to have two different sums, but then It gives me the wrong value of the sum. I'm pretty sure there is a bug in therms of it ...
- 107
0
votes
1
answer
130
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PSet1 Credit Invalid VISA that shows as Valid. My checksum must be wrong but dont know why
*/Here is the error I get:
:( identifies 4111111111111113 as INVALID
expected "INVALID\n", not "VISA\n"
:( identifies 4222222222223 as INVALID
expected "INVALID\n", not &...
- 1
0
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1
answer
30
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When I multiply my array by 2 it doesn't give expected value
Also, please when I try to add "firstnumsum", it doesn't give expected value and I don't know what to do.
#include <cs50.h>
#include <stdio.h>
#include <string.h>
#include &...
- 31
0
votes
1
answer
97
views
i don't know what's wrong with my code. Trying to convert from string to long
INPUT
int main(void)
{
long long cardnumber, calc;
string credit[0];
string nonnumeric;
//long long calc = card number;
int countcardcharacters = 0;
long long c;
//user input
do
{
credit[0]= ...
- 31
0
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0
answers
91
views
I can't get the Luhn algorithm to run properly in my code
#include <stdio.h>
#include <cs50.h>
#include <math.h>
int main(void)
{
long long cardnumber = 0;
//Prompt the user for the credit card number using get_long
do
{
...
- 3
0
votes
1
answer
107
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Need help (or idea) making the code looks cleaner. (PSET1/CREDIT)
My code passed pset1/credit but I still think the there must be a way to make my code looks cleaner and more impact. If you have any idea please criticize the code. Thank you in advance.
#include <...
0
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1
answer
89
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HELP ME!! CS50 pset1 credit.c says INVALID but when I debug it says AMEX?
#include <stdio.h>
#include <cs50.h>
int main(void)
{
long long cc;
//get user input for cc
do
{
cc = get_long_long("Number: ");
} while (cc <= 0);
/...
0
votes
2
answers
191
views
Credit pS1: how to store the separate digits and store them
I have made some progress, but I can't store the separated digits. It only stores the last one in "remain". My other challenge is that separating the digits above 9 gives the result "0&...
- 7
0
votes
0
answers
115
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Stuck by problem set Credit, % operator
As a beginner I am stuck in de problem set Credit. Especially the % function is giving me trouble
To better understand it, I tried to use the example of programming simplified to get the sum of digits....
- 7
0
votes
1
answer
70
views
Check50 giving different results from the code I compiled in pset1
For Problem Set 1, I have the code as written below
#include <cs50.h>
#include <stdio.h>
int card_length(long cNo);
void luhn_algo(long lacno, int lacnolen);
void finalPrint(int cardDet);...
- 1
0
votes
1
answer
72
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What is probably wrong in this while loop?
I'm getting positive integers from users.
I used a do-while loop to check and validate that the user input is:
1. A positive integer.
2. The length (I.e size) is between 13 and 16 digits BUT NOT ...
0
votes
1
answer
95
views
pset1 credit working only in certain cases
So, this is probably not a good solution of the problem, but I hoped it would at least work, after struggling with it for quite some time. It made me happy to see it worked for the first number I ...
- 1
0
votes
1
answer
81
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Pset1 valid visa number as invalid
I built the first part to check whether a number is a valid AMEX number and used the same logic to check for Visa number but the codes don't seem to work as I tried with several valid visa numbers and ...
- 3
0
votes
1
answer
295
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pset1 credit assignment
I assume anyone looking at this question knows the assignment but to recap I need to write a program that will identify different CC#s—AMEX, MC, VISA, or Invalid. Since all these CCs range from 13-16 ...
0
votes
1
answer
276
views
RE: Credit in PSET1
I have come up with, what seems to me, to be a logical walkthrough of the CREDIT problem (after banging my head against a wall for too long) - but the code does not make sense to the compiler. And I ...
0
votes
1
answer
134
views
Problem with my credit.c code
My credit.c code keeps inserting huge numbers in my array for seemingly no apparent reason. For example the user enters 45231 for the credit card number, the beginning of the array is fine and ...
0
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1
answer
602
views
pset 1 credit.c
I started with the credit card case but I am lost I wrote this till now
I want some help to know what to do next of course not giving the whole thing because this is the purpose of the course... ...
0
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0
answers
111
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Need Coding style help - pset1 credit.c - (style50 failed to parse, feels and looks messy)
Style50 fails to even parse the code and it feels messy and cluttered. Need coding style pointers. Check50 passes. Trying to get the most out of this course, not just fumble through.
What is wrong, ...
0
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0
answers
111
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CS50 PSET 1 Hacker Bad Credit
With this code, I want to "Multiply every other digit by 2, starting with the number’s second-to-last digit, and then add those products' digits together"get the ".
I don't get the correct results, ...
0
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0
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170
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CS50: Bad Credit - pset1 hacker1: Program compiling but not executing
the following code for CS50's hacker edition Bad Credit is compiling but is not executing. Would really appreciate a review:
#include<stdio.h>
#include<cs50.h>
#include<math.h>
// ...
0
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0
answers
260
views
Pset1, Hacker1,Credit.C, error while converting long long into an array
TL;DR Why does METHOD2 below work and not METHOD1??
I'll preface this with saying that after hours of trial and error, I got the code to work. However, I am still VERY CONFUSED as to why one method ...
0
votes
1
answer
298
views
Hacker pset1 credit.c always gives invalid?
I tried to attempt the credit.c problem. My code is as follows:
#include <stdio.h>
#include <cs50.h>
#include <math.h>
#include <string.h>
int main(void)
{
printf("Please ...
- 103
0
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0
answers
122
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hacker credit expected output
I'm getting that dreaded "expected output" error when running check50. Thing is, I don't have an added newline \n in my code. The actual output sure appears to be identical to what the checker was ...
- 192
-1
votes
1
answer
49
views
cant figure out whats wrong with my credit code
#include <stdio.h>
#include <cs50.h>
#include <string.h>
int numlength(long num);
int main(void)
{
long num;
do
{
num=get_long("Number :") ;
}while(num<0)...
- 1