[c] Forum Topics

Good Morning, For the last few weeks I've been searching HIGH AND LOW. All forms, dozens of tabs open, and bought about 200 bucks in books. My goal is to learn the windows win32 API and I'm hitting brick walls everywhere I look. So far, I've learned that findwindow (or …

#include <iostream> #include <iomanip> #include <stack> #include <queue> #include <vector> #include <fstream> using namespace std; class graph { public: graph(); graph(int); //graph(int, int); void setEdge(int src, int dst); void printGraph();//print graph void bfs(int);//Breadth First Search void dfs(int);//Depth First Search void bfsSpan(int);//Breadth First Search Spanning Tree void dfsSpan(int);//DepthFirt Search Spanning Tree …

the last array array 3 is not giving me the desired output. i see no logic errors therefore i do not know why i am getting the wrong output. #include<stdio.h> int arr1[5]={55,145,950,25,500}; int arr2[5]={44,58,98,25,62}; int arr3[5],array1,array2,array3; int i=0,j=0,k=0; for(i=0;i<5;i++){ array1=arr1[i]*2; printf("array 1 doubled is %d . \n",array1); //i++; } for(j=0;j<5;j++){ …

How would I go about making this table? ID Type Value X int 4 Y int 4 Z float 0 This is the only way I can think of but I don't think this will work. int main(int argc, char *argv[]) { char *strings_line1[3] = {"ID", "TYPE", "Value"}; char *strings_line2[3] …

Ladies and Gentlemen Coders, I'm working with the code below: int GetDrives(void) { wchar_t LogicalDrives[MAX_PATH] = {0}; DWORD r = GetLogicalDriveStringsW(MAX_PATH, LogicalDrives); if ( r == 0 ) { printf("Failed to get drive names. %ld", GetLastError()); return 1; } int NumDriveCount = 0; if ( r > 0 && r …

A program that will create a movie seat reservation. The program will display the summary seats and its status. The user will be ask what seat no. to be reserved, then it will go back again to the summary to display the updated seat status. If the seat no. is …

after writing a c program and running it,it shows that fatal error:abort(programcollect2).......i have correctly installed codeblocksmingw version......but not compiling

i want to solve this problem>>After that the code will select a random problem for you from my problems database based on your previously solved problems, your skills and your weaknesses. But while I was coding for implementing this great idea, I found that, all of my problems are scattered …

I am using C language to encrypt a text file and decrypt it by the means of an AES Algorithm. This algorithm can only encrypts characters if they are stated in the format of an unsigned character where a letter A is represented by 0x41. what i am trying to …

I have a project. Our prof. said to choose between a smiling face animation and a maze game using gotoxy() im just a 1st year and programming isnt our major. My compiler is tc. Can anybody give me some code or something. I'm in a rush so please i would …

Hi all, I was wondering how to access individual elements in the below case: char *three=(char*){'2','5','8'}; If the assignment were like this: char *three="258"; it can be accessed with three[0],three[1].....etc. How to access in the first case?

#include<stdio.h> main() FILE *pToFile; int input[512],i,j,k,l; pToFile=fopen("data.txt","r"); if (pToFile !=NULL) { fscanf(pToFile,"%d%d %d %d %d",input,&i,&j,&k,&l); printf("%d\n%d\n%d\n %d\n %d\n %d\n", input,i,j,k,l); fclose(pToFile); } else { printf("could not open the file \n"); } return(0); } i was wondering why this code doesn't want to work? and if theres any another way i …

Hello , I want to ask why I am not receiving the same result using either the `if` with `break` inside the while loop ,either the `while( x!=X && y!= Y )`. #include <stdio.h> #include <stdlib.h> int sol( int X, int Y ) { int x = 0, y = …

One of the questions given to us for the lab exam was to generate the first 10 armstrong numbers. I could generate upto 5 numbers correctly..the rest are wrong. [code] #include<stdio.h> #include<conio.h> void main() { int n=1,a,b,i=1,r; clrscr(); while(i<=10) { a=0; b=n; do { r=b%10; a=a+r*r*r; b=b/10; }while(b>0); if(a==n) { …

Just started learning MPI and all, need a little help with it though. int main( int argc, char *argv[] ) { int rank, n; MPI_Init( &argc, &argv ); MPI_Comm_size( MPI_COMM_WORLD, &n ); MPI_Comm_rank( MPI_COMM_WORLD, &rank ); int a = rank; int b = 0; int C[n], D[n]; for ( int …

HI, i'd like to do a simple calculator in c. i write this program but all the results about subtraction ( SOTTRAZIONE) are not correct. can you told me why? thanks you so much `Inline Code Example Here` case 2: printf ( "the subtraction of these n numbers is : …

I am creating multiple C++ DLLs which have a C wrapper around them for use by an external application. I wanted to have a single error handling library that each DLL has access to. If I created the error library as a static library and then include it in the …

I having a problem which i cannot compare the deck 1 and deck 2 anyone can help me? #include <stdio.h> #include <stdlib.h> #include <time.h> #include <stdbool.h> // #include the std boolean library #define CARDS 52 #define DRAW 104 //The program will first open Deck 1 then Deck 2, after Deck …

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.

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 …

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 …

> Help please, I'm just practicing and it's really annoying to have an error. I tried everything but yeah, failed. lol #include <stdio.h> main(){ int order; int price=5; int bill; int billd; int billf; scanf("Amount of Order: %d",& order); if (0<=order<=10); bill=(order*price); billd=(bill*0.1); billf=(bill-billd); { printf("Bill: %d",billf); } else if(11<=order<=20); …

I'm working on a program that requires some very low level optimization. My question is, when precision isn't an important factor, how can I automatically use the most efficient floating point type for whatever architecture the program is being run on? As far as I'm aware, floats are more efficient …

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 …

the difference between compilation and execution?

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

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 …

Enter 10 student grades and print the total number of passing and failing grades entered

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 …

I just figured out the answer to one of my previous questions but now I have a new problem, before I was just being a tad silly and forgot how to properly write a function but now my question is if I have the following function `int findMobile( string word, …

I am trying to declare a function to find the largest mobile element for a program to list permutations using johnson-totter algorithm. Here is my definition of the function in the header file: `int findMobile( string, int[] );` and here is my actual declaration of the function: `int findMobile( string …

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've just begun working with assembly so I'm sorry if this question is simplistic. I would like to implement an atomic add (for incrementing an array pointer). My code looks like this: int * ptr; int step; asm("lock add %1, %2;\n" :"=m"(ptr) :"m"(ptr),"r"(step) : ); But I'm getting an …

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 …

<Complete copy of assignment deleted by moderator> Do ensure you own the intellectual property rights to everything that you post Do not post copyright-infringing material

make 100 with just required digit is ..you can used four 7 digit and only one 1 digit ... 7,7,7,7 and 1; now for making 100 with them you can used any arithmatic symboil... * ,/, +,-