49,760 Topics
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 | I want to know how this function is working. I used qsort() function to sort the integers in an array and i found this compare() function on internet. It worked perfectly well but i cannot understand how is it working and what's its logic. Any help? int compare (const void … |
| | Hellow...How to count and sum even and odd integers from a sequence of integers..? |
 | [LIST=1] [/LIST]Hello again :), I am writing a code that will recursively write a string in reverse. The problem is in my recursiveReverse function. I feel like the idea is right, but the implementation is incorrect. My thought process was that I could start the loops at the beginning and … |
| | This is a code for removing spaces from a string, I've been asked to do this without using any standard library functions like `isspace` or `'\b'`. I've been trying for a lot of time but it always gives the same error > Error : Cannot convert 'char' to "char *" … |
| | PROBLEM DESCRIPTION A battalion is a military unit with 300 to 1200 soldiers usually consisting of seven companies commanded either by a lieutenant colonel or a colonel. A particular training that a battalion undergoes is the training to maximize the battalion's "carrying capacity" whenever they are to carry cargoes from … |
| | Write a program to read the coefficients of a series of quadratic equations from a text file and print the associated roots, or appropriate errors if there are no real roots, to another text file. The coefficients of a quadratic are the a, b and c of an expression of … |
| | class name { char *s; int len; public: name(){ // Default constr. s=NULL; len =0; } //************************************************** ~name(){ // Destruct. if (s!=NULL){ delete [] s; s=NULL; } } //************************************************* name(const char * s1); // Constr. char* getName(); //fcn get name int getLen() ; // fcn get lenght void setName(const char …  |
 | I'm working on a project that generates roughly between 13x512 values in which I compare at run-time. So the program outflow will be sort of as follows: - Program executes - Extracts (1) 12x512 - Extracts (2) 12x512 - Compares (1) to (2) - Extract (3) - Compares (3) to … |
| | Dear Friends: I need some help to identify the error. When I compile my application I get the following error message: Error 1 error C2678: binary '==' : no operator found which takes a left-hand operand of type 'extPersonType' (or there is no acceptable conversion) f:\college material\cs270\sourcecode\addressbook\addressbook\arrayListType.h 251 1 AddressBook … |
| | Please i got a problem linking my .cpp files together in my c++ project. I dnt knw how to specify the file path for #include . Please any help? |
 | Hi everyone! I would like to know how to show my Form21 from a click on a button in Form1 I used this code here: #include "Form21.h" /// Form21 ^maForm2 = gcnew Form21(); maForm21->Show(); I do not know why it does not work yet I found it in FAQC + …  |
| | I wish to store an integer wid a 1000 digits for a program in C++.Please suggest me a datatype i should use.I'm using a 64 bit computer but the dev c++ i'm using is 32 bit. |
| | Hi everyone! I have a datagridview and I want to automatically fill it Let me explain: I have a matrix (gainMatrix) and I want to fill my datagridview by the latter, here is a piece of code that I use for filling: for (int i =0; i <ala.size(); i++ ) … |
| | how do we build our own string functions from scratch and not use the built in functions from the String class and a function to open and close a file given its name. then, check whether or not the file exists. It should read an opened file into an array …  |
| | Hey, I want to EnumProcess , Then HANDLE with exactly process to read the memory of it any help? |
| | Hi guys, I am creating a 2D casual game and i encounter a problem. The problem is that I have a highscore features that saves to a text file by storing the name and score Now i wanted it to sort using bubblesort and structures. How can i achieve that? …  |
| | I was just introduced to a topic of arrays but i just want you to kindly give me an intoroduction to ARRAYS,what are arrays/  |
 | #include<fstream.h> #include<conio.h> #include<string.h> #include<stdio.h> void main() { clrscr(); ofstream fout("a"); fout<<5<<"\n"<<3<<"\n"<<2<<"\n"<<4<<"\n"<<1; fout.close(); ifstream fin("a"); int i,j,k,l=0,m,n,o; while(fin) { fin>>i; l++; } l--; fin.close(); fstream fin1("a",ios::ate,ios::in); fin1.seekg(0); for(i=0;i<l-1;i++) { for(j=0;j<l-i-1;j++) { o=fin.tellg(); fin1>>m; fin1>>n; if(m>n) { fin1.seekg(o); fin1<<n; fin1<<m; fin1.seekg(o+1); } } } } //file sorting is not working if anyone … |
 | **Problem Statement** During the tax season, L&T Accounting Firm provides assistance to people who want to prepare their own tax returns. The company only services personal (individual) taxpayers. Your task is to write a program to do the tax calculation for each of the personal clients. Your program should get …  |
| | Write a program to read the coefficients of a series of quadratic equations from a text file and print the associated roots, or appropriate errors if there are no real roots, to another text file. The coefficients of a quadratic are the a, b and c of an expression of …  |
| | Hello guys could anyone explain what is the point in: #define DEBUG and #define NDEBUG? when should we use them and how?? I'd like to see some examples any help is highly appreciated |
| | Hi guys, im new to these forums and new to C++. I love games (mainly RPG's) so I figured I would learn C++ by making a little text based RPG. Anyways, I read through a few tutorials and an olc C++ for dummies book and this is what I cam … |
 | **hi! i need help on fixing this program i made it seems that i can't let it run. Can someone give me some advice on what errors i have made and how i can fix it. thanks ** #include <iostream.h> #include <conio.h> void main () { int i; int j; …  |
| | write a program that simulates the energy use of a house hold based on mainly the geyser's energy consumption. This is the first in a series of assignments improving on the model for this simulation. As a simple model the yearly consumption is based on a sinusoidal function approximating annual … |
 | http://ideone.com/H7YIwR Here's my code to find palindrome in string..But surely it's too slow..Is there any good algorithms for such problems..And for some cases it's not giving the right answer.Thanks for the help. |
| | Actually, I have learnt C++ much till now . Atleast which i need for my work purposes. I have thought of a project-- desktop calculator. I want to have all these functionalities in it. 1. mathematical functions, 2. prime number checker(will apply primality checking algos), 3. all error handlers (zero …  |
 | I get the following errors with my code when using nmake input.c(375) : error C2065: 'ulong' : undeclared identifier input.c(375) : error C2146: syntax error : missing ';' before identifier 'datelo' input.c(375) : error C2065: 'datelo' : undeclared identifier input.c(376) : error C2146: syntax error : missing ';' before identifier …  |
| | Hello all, It has been a while but I'm on the right path - finally. So basically I am writing a very special application for a loved one. I have many great ideas but simply put I am struggling with I/O stream, it is very possible that I should research … |
| | This is an assingment i've been working on but since this is a merge between two previous developments i need a little help solving my issue here that would be highly appreciated. In a nutshell what this program needs to do is recieve a .txt file create a vector holding … |
| | Can u plx help me to display the score with each correct answer in Jumble word game in C++ and Gwin here is so far upto where i have gone #include"gwin.h" #include <iostream> #include <string> #include <fstream> #include <time.h> using namespace std; using namespace GwinColourNames; int main() { GWindow Gwin(500,400); …  |
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