Questions tagged [pset3-helper.c]

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Pset3, Issue with duration in helpers. Can't compile, strange error message

Back again, this time trying to figure out pset3. I think everone is familiar with the pset, but for anyone who isn't, I'm trying to convert a fraction (1/8, 1/4, 1/2, etc) to a number of eighths. ...
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1answer
72 views

Calculate n (semitones) for frequency in pset3

I'm having a bit of a hard time trying to calculate the value of n(the number of semitones from A4). I'm currently using the following formula: if (octave > A4_OCTAVE) { n = (octave - ...
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1answer
29 views

Pset3 Music random interger stored

I am writing the frequency function for pset 3, and I'm taking the input string note and storing the character that denotes the octave number in an integer called octave1. I've been getting some ...
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1answer
2k views

pset3 frequency "called object type 'int' is not a function or function pointer" (line 108)

I'm not sure what is wrong with my code or why I'm getting error "called object type 'int' is not a function or function pointer" (line 108) thank you for helping!
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1answer
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Pset 3 Music. Brute forced the frequency function, no syntax errors but only getting 0's for all my answers? Any Ideas?

I know my code is not clean at all. For the frequency function I just brute forced it by just starting with "what if there were only A's?" and copied that for the rest of the letters. Naturally messy ...
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1answer
56 views

Pset3 2017 less bubble sort

I decided to do pset 3 from 2017 as extra practice, but ran into an issue with bubble sort. More specifically, when I run check50 on it I get: :( sorts {5,4,3,2,1} expected "1", not "\n5\n5\n5\n5\n5.....
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1answer
119 views

Pset 3 helpers.c check 50 errors

#include <cs50.h> #include <stdio.h> #include "helpers.h" //TODO binearysearch, om te controlere van de waarde. bool search(int value, int values[], int n) { int left = 0; int ...
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1answer
133 views

pset3 bubble sort

pls could anyone tell me where have i made the mistake?...as i have tried to find it myself but couldn't find it. void sort(int values[], int n) { int min=0,max=0; do{ //to compare ...
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2answers
1k views

Pset 3 - Timing out issue with helper.c

Updated with the solution on the bottom of this post. Thanks MARS for your help you got me headed in the right direction and I eventually got there. I'm close to completing the helper challenge (less ...
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1answer
58 views

pset3(count sort):can't sort using count sort,it doesn't sort at all or not returning the sorted array??plz help

/** * helpers.c * * Helper functions for Problem Set 3. */ #include <cs50.h> #include "helpers.h" #define bound 200 /** * Returns true if value is in array of n values, else false. */ ...
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1answer
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Direction on Find/Helpers.c

I am really struggling to get started on the first part of Pset 3. I was able to do the commenting for generate.c (though without getting a deep understanding of srand and drand functions, which I ...
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2answers
187 views

Pset3 helpers.c

i'm stuck in binary search. Check50 doesn't pass all the checks and it doesn't find the needle, I feel like the algorithm i have implemented is correct but it doesn't work. I've been stuck in this for ...
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1answer
14 views

helpers.c output error

Why is this program not returning true when value is in values? bool search(int value, int values[], int n) { // TODO: implement a searching algorithm int start = 0; int end = n-1; int k = 0; //...
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1answer
75 views

pset3 helper.c segmentation fault

in the last check of check50 when i entered these numbers and in that order 42 40 39 41 it gives me segmentation fault but when i put printf in my sort functions it runs normally so can someone ...
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1answer
103 views

My helpers.c [pset3] passes check50, but not working in real world

I wrote helpers.c according to Zamyla's walkthroughs. My code seems quite well to me. I checked it with check50 and it passes. ~/workspace/pset3/find/ $ check50 2016.find.less helpers.c :) helpers.c ...
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1answer
73 views

CS50 > Pset3 > Game of fifteen > init function :

Can anybody please explain why is the rule: 1 and 2 has to be swapped when the dimensions are even? Why is it necessary? what is happening behind the screen?
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1answer
94 views

Pset3 Find - Not sure what is wrong with helpers.c code

I am not sure what is wrong with the code. It seems to work on some of the criteria when using cs50's check50, but does not work on others. There also does not seem to have a pattern about the wrong ...
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1answer
408 views

Need help with pset3 find program

This is my find.c main function int main(int argc, string argv[]) { // ensure proper usage if (argc != 2) { printf("Usage: ./find needle\n"); return -1; } // remember needle int needle = ...
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1answer
221 views

Pset3 - Problem with Bubble Sort

I've tried to write an implementation of bubble sort. I deliberately created it in a separate file outside of helpers.c, just to make sure it works, before incorporating into helpers.c It doesn't ...
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1answer
56 views

pset3 buble sort() function works but it gives wrong output in helper.c

this is my bubble sort program which works fine: #include <stdio.h> #include <stdbool.h> /** * Sorts array of n values. */ void sort(int values[], int n) { bool no_swap = false; ...
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1answer
88 views

<Pset3 Find> Help with Selection sort code

I can't seem to see the problem with my code for Selection Sort. I'm passing all the checks for check50 except the one with an unsorted array so I'm guessing that the problem lies with my Selection ...
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1answer
48 views

Pset3 helpers.c while loop exiting unexpectedly

I am trying to implement a binary search algorithm. However, my while loop isn't working as expected. Having used printf and debug50 with a list of 100 numbers, it seems that the while loop only gets ...
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1answer
193 views

pset3 helpers.c doesn't compile

When I run check50 it states that helpers.c doesn't compile, but it finds the numbers correctly in the arrays. I'm lost. Any help is appreciated. ~/workspace/pset3/find/ $ check50 2015.fall.pset3....
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1answer
109 views

pset3 - Binary search not finding the element in middle

Binary search doesn't seem to find the element in middle. int binary_search(int value, int values[], int n) { int low = 0; int high = n-1; while( high >= low ) { int mid = (...
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1answer
95 views

pset3: How to test sort function code using passed array and printf in independent file

I just wrote some code for a bubble sort function. I would like to test it using a simple printf with an array of values passed into it but am struggling. For now, let's assume that this file is ...
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1answer
51 views

Pset 3: What's wrong with my binary search code?

I've tried using "./generate 1000 50 | ./find 127" and it doesn't find a needle so I guess my code is wrong. I'm not sure if it is my search function or sort function or both that are wrong. Here's a ...
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1answer
25 views

Practicing my source code

hi am trying to run my code but it keeps giving me this error. ~/workspace $ make Practicing clang -ggdb3 -O0 -std=c11 -Wall -Werror -Wshadow Practicing.c -lcs50 -lm -o Practicing Practicing.c:4:...
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1answer
23 views

Binary search: always false when 2 or 3 numbers entered

My binary search works correctly when you enter 1,4,5,6,7 (etc)... numbers or 'haystacks'. However, when 2 or 3 numbers or 'haystacks' are entered, false is always returned. I have tried everything I ...
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1answer
737 views

Pset3- Find: "control may reach end of non-void function" (error)

I know that this question has been asked before, but none of the answers have helped me. I keep getting the "control may reach end of non-void function" error when I try to make find after editing ...