15,552 Topics
 | |
| | Following is a matrix multiplication code written in MPI (Message Passing Interface) which could be run on CPU cluster for parallel processing. This has been successfully tested with two square matrices, each of the size 1500*1500. |
| | hii, it may b very simple or very basic thing but iam confused in this case...any one can explain usage of single & double quotes in **echo** statement <?php $x = "test"; echo '$x';//produces $x as a output echo "$x"; //produces test as a output ?>  |
| | I have problems with the following program which is long to post at once so I will explain what are the problems step by step. 1. Define two structs that represents books and a bookstore as following: typedef struct { char id[14]; char title[16]; int availableNumOfBooksWithSameTitle; }BOOK; typedef struct { …  |
| | Write a program that will print all highly prime numbers from the input interval <a,b>. Prime number is highly prime if deletion of every digit from right is a prime. Example: 239 is highly prime because 239,23,2 are primes. Could someone point out what are logic errors in the following … |
 | hello friends sorry for posting this basic question here but i can't figure it out why my variable "tasse" is getting 8 or (the value of variabale i) in this code below. #include <stdio.h> int main(){ int leght = 15; int tasse =0; int random; int array[15]={1,5,4,7,8,5,1,0,9,7,0,0,5,4,10}; int i,j; for(i=0; … |
 | Hello, I am having a bit of an issue with my networking addition to my game engine. The engine uses SDL to provide an event-driven programming environment. I tried adding networking functionality, but it doesn't seem to work. Here is the relevant code: //includes #if defined(_WIN32) #include <winsock2.h> typedef int … |
| | Create doubly linked list that has the following information about **books**: **book_id, book_name, author_id, book_price**. Sort list in ascending order by **book_price** using bubble sort algorithm. Delete all books with the smallest and the largest price. How to modify the following program such that the sorting is done using bubble … |
| | Hello friends i just have one question i want to make my own android OS customized version or even one day make entire own OS, so i wanted to know for the android OS i must learn JAVA ? or c/++ ?? |
| | So my next problem is what mac is right and reliable for me? I will be using my mac for: - Writing word/pages docs - Programming in C++ , Objective-c , Java and more - Game development - Powerpoint/keynote presentations - A little bit of PhotoShop - Music and personal … |
| | Hi , Below is the code for printing even/odd numbers alternatively.But some how i am not able to achieve the result. I have seen a version with while loop http://www.bogotobogo.com/cplusplus/quiz_multithreading.php working perfect. But i would like to use one thread for printing one value instead of same thread running in … |
| | My understanding of code blocks is that it uses gcc. So I am curious why gcc allows you to have a function called itoa, but code blocks does not let you have a function called itoa. Does anyone know? |
| | Hello, I have this code: #include<stdio.h> int q = 10; void fun(int *p){ *p = 15; p = &q; printf("%d ",*p); } int main(){ int r = 30; int *p = &r; fun(p); printf("%d", *p); return 0; } which returns `10 15` I can't understand why it doesn't return `10 … |
| | Hello guys, I am Toni Hacker, i browsed through this forum and I saw you guys really talk more about programming. i wanna make an operating system but i need a team. please its gonna be an open project. I need your advice and help. anybody care to help |
| | One of the best tips I learned long ago was to turn on all warnings and error messages from the compiler or development system. Yet last week, once again a big system was being worked on and the bug was tracked down to *uninitialized variable*. Now this isn't specific to … |
 | I am trying to build a program for transferring files to an arduino project with an attached sd card. I have some code, it does some interesting stuff, but it's not quite what I want it to do. What I need it to do is to be able to transfer … |
| | **I'm having difficulty translating C code that loops through an array of grades. The C code is as follows:** int A, B, C, D, F; // declare grade counters int i; // declare loop counter int N ; // Number of scores to analyze A=0; B=0; C=0; D=0; F=0; // …  |
| | Enter 10 student grades and print the total number of passing and failing grades entered |
| | iam asking about chimical equations how can i programme it to the computer how can i make the computer understand that c+o2=co2 or naoh + hcl =nacl+h2o i mean how he understand that acid +alkail= water +salt  |
| | hello i just get started with java so i have a question where the difference from c/c++ and the famous lovely java begin, the function or better method, so in c/c++ we can make a function prototype on top the main and then define it later like this int myfunctionprototype(int …  |
| | Most of the email autoresponder provides various types of services, but a customazie autoresponder needed for my cpa business, i am try to make a autoresponder with server scripting language (PHP) , but i dont know how its possiable or not?  |
 | A simple graphical year calendar. Compiler: Turbo C In main current year is set manually, for more generic way use date function to get current year. |
| | I always get confused with while when I need to use multiple condition. I believe this is correct. 1 and 1 = 1 1 and 0 = 0 1 or 1 = 1 1 or 0 = 1 Is there something special I need to do with while loops? If … |
| | Hello, I am getting a linked error when I changed file name to cpp. 1>main.obj : error LNK2019: unresolved external symbol "void __cdecl func_name(double * *,int,int,int,double * *,double * *,double * *,double * *)" I am using objects in my new code but this function which was there earlier is … |
| | Is this the correct way to print char*? *I know c has the value I want because of the print statement below it. The o is not giving the value that I expect. char out[50]; char *o = out; int i = 118; *o++ = c; printf("o is %d (%c)\n", …  |
| | I am trying to get the first value of a null initialed array of string.I have tried every method I can think of with no luck. I either get warning, errors, or a segmentation fault. Whats the correct way to print the null value and use it in the if … |
| | In this example in the malloc() what does the UL do? #include <stdio.h> /* perror */ #include <errno.h> /* errno */ #include <stdlib.h> /* malloc, free, exit */ int main(void) { /* Pointer to char, requesting dynamic allocation of 2,000,000,000 * storage elements (declared as an integer constant of type … |
| | I have seen a few different ways of doing malloc error checking? Is one way better than the other? Are some exit codes better than others? Is using fprintf with stderr better than using a printf statement? Is using a return instead of an exit better? ptr=(int*)malloc(n*sizeof(int)); //memory allocated using … |
| | I was trying to write a code for: read in N numbers from a file FILE1 into an array(dynamic) then sort those numbers then search for numbers (1 per line, given in FILE2) in the array. #include <stdio.h> #include <stdlib.h> #include<math.h> #include<string.h> int main(int argc, char* argv[]) { FILE *fp1=fopen("myFile1.txt", … |
| | Assume that a file exists. How to replace the occurrence of a character with another character? |
| | I need some ideas for dealing with array of strings. **ptr** contains my array of strings. The goal here is to combine certain strings when the conditions of the for loop are met. The problem is I need remove the strings that get combined with another string so I don't … |
The End.