Questions tagged [return]

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problem return correct answers

#include <cs50.h> #include <stdio.h> int main(void) { int start, end, years = 0; // Prompt for start size do { start = get_int("Start size: "); } ...
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CS50 Tideman: lock_pairs skips final pair if it creates a cycle

I have been working on this for way longer than I'd like to admit. I'm certain there is a logic error, but I have keep running into the frowning face :( wall. What I've been struggling with ...
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p2 substitution i have no idea how to return multiple value from same variable in a function since c doesnt take variable array length

#include <stdio.h> #include <string.h> #include <math.h> #include <ctype.h> int converter(string plaintext,string text ); int main(int argc, string argv[]) { string code= ...
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Running an 'if' statement inside of a 'for' loop; Need to continue loop w/o printing anything, but not sure what value to return

So, I'm currently working on 'Substitution', and have written the following code to evaluate if a certain array of characters are all alphabetic: for (int i = 0; i < length; i++) { if (isalpha(...
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Function returns not working for CS50 readability.c

In CS50 we now have to make multiple functions (I guess they want us to get used to objective-oriented programming for the python part later) and return the value to the main function. When I execute ...
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3 answers
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Error retrieving return values ​from a function

I am currently studying coding in C language and I have doubts about the return of functions, what I am trying to do is the following: Call the number () function and pass 3 values ​​of the integer ...
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1 answer
105 views

Return type of printf in C

In the video Data Types, Doug says around 6:50 that printf does not have a return value. I don't think this is true. printf does return the number of character printed on the screen. Here is a ...
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Why do i need a return value when my program will recurse until it does in fact return a value?

To fix this problem all i need to do is return something in the else part of the if statement, but it seems so pointless and messy because the program is designed to recurse until a value is returned. ...
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1 answer
663 views

End program by returning exit code 0 from bool function

so, for pset2 crack task i've generate a password, then encrypt this password and a salt to some result by result = crypt(pass, salt); After i want to compare result with hash, so i implemented a ...
1 vote
1 answer
183 views

What should the return type of swap function be?

#include<stdio.h> #include<cs50.h> void swap(int x,int y); int main(void) { int x=get_int(),y=get_int(); printf("1=%i and 2=%i",x,y); swap(x,y); printf("1=%i and 2=%i",x,y); } void swap(...
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pset 3 won() function always return false

I'm stuck on the logic in pset3 won() function. Apparently, the function just doesn't return true no matter what. Here is my code. bool won(void) { int n = 1; //iterate over the board for ...
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C : error non-void function search - value (find)

I'm getting error non-void function search should return a value. If I add anything else to last return, such as false 1 or zero, the errors multiply. I've tried moving the indentations as well as ...
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2 answers
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Will the loop break in case the condition returns some value to the caller method in C?

If i write the following: for(int i=0; i<=1000; i++) { if(arr[1] == n){ return true; } } Will the loop break when the condition holds true and the return statement returns the value to the ...
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I implemented Collatz recursion which is giving error "Control reached at non void function"

It has proper return value kindly guide me how can i tell compiler I have return values. here is the code #include <stdio.h> include <cs50.h> int coll (int a,int c); int ...
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This is the code why it is not returning the swapped values

This code is written to return swapped values, why values are not being returned, My basic question is how can i take return value from function called, please demonstrate with any code example. <#...
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1 answer
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pset3 won function - Where does the "return true;" statement go?

bool won(void) { int counter = 1; for (int i = 0; i < d; i++) { for (int j = 0; j< d; j++) { while (board[i][j] != board[d-1][d-1] && counter != d*...
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3 answers
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This code of triangle problem always give me "true".I can,t find bug in this please find the bug

#include <cs50.h> #include <stdio.h> bool triangle (float a, float b, float c); //Declaration of function int main (void) { printf ("Give me three sides of ...
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PSet3 Find passing my testing but failing check50

I'm working on linear search. When I test manually, it works correctly, and "echo $?" will show a 0 and 1 as expected. I have tried it with piped-in data sets, with the 127 and 128 examples from the ...
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Recursive Binary Search Exit Code Errors

I wrote the following recursive binary search function. No matter which exit codes I use (e.g., true, false, 1, 0, -1, "Swedish Chef"), I fail at least two of the checks I need to pass. The code ...
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Pset5 - Apostrophe and check problems with Tries

Alright, so I have spent days with with load, and just recently implemented check. I've read upon stuff, rewatched videos, all the good stuff. I'm trying to do pset5 (misspellings) with Tries. I ...
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caesar argc ... help me get started

Ok so i just started caesar and i don't know whether I'm headed in the right direction or not, if not i just need someone to point me the right way,and yes i have seen the walkthrough. so heres my ...
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Cannot get both ball and paddle to work at the same time

Breakout: If I put return ball inside the while loop, I get a working paddle but the ball doesn't move. If instead, I put return ball outside the while loop or have no return at all, the ball moves, ...
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1 answer
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pset3 return function

When I tried to return newGRect instead of rect in this case and compiled my whole program, I got the message of Segmentation fault. May I know why? Also, may someone tell me where to find a ...
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pset3 helpers.c not working

this is my code for the top part { for (int i = 0; i < n; i++) { if (values[i] == value) { return true; } else { ...
1 vote
2 answers
4k views

Pset3 Binary Search problems

I have tested the code presented in the picture and find this function always returns false no matter what number you search.There must be a problem in it but I can not see it!! Can anyone help me ? ...