51,592 Topics
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| | Hey, i need c++ coding to print sum of this series 1 + 1/11 + 1/21 + 1/31 + ... + 1/N Would be great if someone could answer this quick, thanks.  |
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| | i was given an assignment to create a word construction game where the program will randomly picks a combination of vowels and consonants and the user will build as much words as possible from the choosen letters. my prog will check for the correctness of the words and gives the … |
| | Hi Guys, In my current task , I need to read the read the approximately 10,000 recoreds from database and need to store the same in container.Now i need to select container to store all this records inorder to generate the report.Could you let me know whether i need to … |
| | Hello , I've been working for an hour now searching for a solution for a problem i have for tomorrow's workshop so I wanted to be ready for it and here was the question : Write a program that reads 3 integers. Then, display: The count of positive integers … |
 | i need just an intro about Matrix. what is Matrix and what i can do? i understand that i can rotate, scale, mirror and more. but can i swap pixels?(convert red to green) i don't know so much about Matrix intro :( |
| | Hi All, Usually in factory method we need to check the existance of object based on given argument and then need to return the object and due to this we need to have multiple if and else statement and while adding one more type then again one more else block …  |
 | Hello C++ Programmers; I would like to know if fill color can be automatic fill up a whole row when in two column have a number 6; for example: A B C D E F G H I J 1 98 132 3 146 6 54 8 210 8 2817 … |
| | Hello everyone, can anyone explain to me what is wrong with my project? I coded the program using my linux system using Vim and the g++ compiler. I then copied that text over to Visual Studio since I am assuming my professor is going to compile and run it through …  |
| | Im a student & and just started learning c++... My professor assigned me a program to get output as: 1 1 2 3 5 8 13 21 34 With the use of while loop... i hv made this>> #include<iostream.h> #include<conio.h> main() { int n=1,m=2; cout<<n<<' '<<n<<' '<<m<<' '<<n+m<<' '<<n+(2*m)<<' '<<4*m<<' … |
 | // Program to show swap of two no’s without using third variable #include<stdio.h> #include<conio.h> void main() { int a, b; printf("\nEnter value for num1 & num2 : "); scanf("%d %d", &a, &b); a=a+b-(a=b); //Swaping printf("\nAfter swapping value of a : %d", a); printf("\nAfter swapping value of b : %d", b); … |
| | Ok, so right to it. int CSQLDB::Init(const char *host, const char *user, const char *passwd, const char *db) { //Init mySQL mySQL = mysql_init(mySQL); my_bool rec = 1; mysql_options(mySQL, MYSQL_OPT_RECONNECT, &rec); if(!mysql_real_connect(mySQL, host, user, passwd, db, 3306, NULL, NULL)) { printf("(!!!) mySql connection rejected!\n"); mysql_close(mySQL); return 0; } failed = … |
| | Hi all, i need help to build up a cellular automata program. So, there is 4 state of cells, 0 = space, 1 = ".", 2 = "+", 3 = "#" This state is continuous from 0 - 3, after 3, it will be back to 0. For example, an …  |
| | [CODE=C++] #ifndef LIST_H #define LIST_H #include <iostream> typedef char Item; class List{ public: List() {first = NULL; last = NULL;} //~List() void append(Item entry); void remove_last(); void output(); private: struct Node { Item data; Node *next; Node *back; }; Node *first; Node *last; }; #endif [/CODE] I'm writing a class … |
| | input 5 numbers and print in ascending order in c++  |
 | I got the questionairre problem. I was trying to fill the answers from the 20 questions and output the file as results.txt, but it only shows the answers of 19 questions. And when I fill up all the answers, the total score shows 0. The scores for each question (except … |
| | problem#1 Create a program that will count from 1 to n, wherein n is a user-input number. problem#2 Create a menu and combine previously-created programs into one im a newbie programmer i need help in using looping constructs... any suggestions??? |
| | how to print system Date & time on screen? in c++  |
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| | how to reboot system using c++ commands |
| | how to reboot system using c++ commands |
| | i want to make an artificial system in c++ language for a doctor or any judge that will take input from the user and by using rule of inference it will display the result as true or false, can anybody help me to solve this problem  |
| | Consider a base class that is derived by two sub-classes and a third class derives from the above two classes. I make the base class virtual, so as to not make copies of the base class. My question is that do I have to include the base class constructor in …  |
| | I searched a lot but there seems to be no way to have additional color schemes in Dev C++. The existing ones are way too bland. Also, I am no good at colors, yet, it feels as if I don't have the control to choose enough colors in the Editor … |
| | Good day people... I have a program...., when I call the function printReceipt I want a new console window to display the receipt, and then when the user presses enter it should take him/her back to the old console window. Just want to learn how to open multiple console windows.... … |
| | #include <iostream> using namespace std; //Write a recursive algorithm to solve the towers of Hanoi problem. //move disc 1 A to c ACB //move disc 2 A to b ABC //move disc 1 C to b CBA //move disc 3 A to c ACB //move disc 1 B to a … |
| | Hi, I was learning operator overloading and I noticed a very strange thing. I could access the private variable of another object by using the object reference and the . operator. Both the objects belong to the same class and I can alter the value of a private variable of … |
| | Hello C++ Programmers; I would like to ask about running multiple text file; this text file don't have specific name; This one folder (Text Folder) have only text file (no specific counts); if there is other file like .xlsx or .jpeg or .bat or .etc. will be ignored; once I …  |
| | Chào các anh chị , anh chi có thể giúp em hiện thực đoạn code đệ quy này được không em làm hoài mà vẫn không hiểu -Use recursion with the following prototype: void recursiveTriangle(int N) Hint: you can use extra functions to accomplish this task. They should not contain … |
| | Hi, I'm wondering what could cause this type of runtime error: My program basically reads data from different kinds of data files, either a minute data file or a 5 minute data file and then does some analysis. When I run the program on the 1 min data, no problem. … |
| | see my MemoryDc and BitmapDC class's: class MemoryDC { private: HDC memoryDC; public: MemoryDC () { HDC hdc=GetDC(GetDesktopWindow()); memoryDC=CreateCompatibleDC(hdc); ReleaseDC(GetDesktopWindow(),hdc); } operator HDC() const { return memoryDC; } ~MemoryDC () { DeleteDC(memoryDC); } }; class BitmapDC { private: MemoryDC hdcbitmap; HGDIOBJ bitmapold; HBITMAP bitmapcurrent; int intwidth; int intheight; void init(int … |
| | why we use # as preprocessor in c++? why we dont use any other symbol like @,$,%,& etc. as preprocessors? |
| | Part 2 Deliverables Present a solution using pseudocode similar to that in part 1 . Identify the logic needed to capture a credit card payment where the user provides their account number, expiration date, and CVV code from the back of the card. Part 2 Deliverables Present a solution using … |
| | Hi everyone; I got no idea how to start this and if it is possible; I have a text file (.txt) that have lot of lines and I want it to transfer it in Excel (.xlsx / CSV) But not all will be transfer in excel, only a specific number … |
| | I know coding in c++ pretty much ..but I want to learn graphics .. I am using DEV-C++ 5.11 .. Can anyone tell me online link to graphics site?  |
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| | I need a Sample of of calulating the Average of "C Program=50,HTML=50 and others THREE examples" (NOTE;USING CODE BLOCKS COMPLIER WILL BE DEEPLY APPRECIATED) |
| | can i print a window without printer dialog? |
| | Hi everyone! So I am really new to C++ and am currently taking this computer science class in school. We use Visual Stuio 2013. Tomorrow I have 3 programs due and I have only finished 1 so far. Everything I read in my textbook and what the teacher says confuses … |
 | Hello to all programmers out there. Considering the growing request for practice problems by the beginners, we ( Me, Joey, Niek, Aaron..) have decided to start a sticky which will host some common practice problems which would help the beginners in understanding the programming concepts in a better way. (Did …  |
| | I am defining a class outside a function and inside a function and returning the address of the object using new to main. I have no problems when the class definition is outside any objects but when I initialize the class definition within a function I am getting errors, this … |
| | I have an image (frame.bmp, uncompressed, resolution 640*480, 3bit depth, 900KB size) stored at C:\Frame.bmp. I want to load it and put it in my program as an array a[N][M], N=479, M=639. After that to modify its elements (e.g thresholding) and create a new array B[479][639]. Finally, to store it … |
| | I want to declare an ordinary pointer (not a member pointer) to a member function. I have tried but apparently I am getting errors. Is this allowed in C++? Why is it not? #include<iostream> class A{ private: int m; public: void show(void){ std::cout<<"M= "<<m<<std::endl; } }; int main() { A … |
| | how to prepare a result card in dev cpp??? i want help. any one programmer plz? |
| | Hello: I have just down loaded a help library for vc2010 C++ it took two days to download. I compiled a CPUID program from Microsoft. 08/25/2015 03:40 AM <DIR> . 08/25/2015 03:40 AM <DIR> .. 08/25/2015 03:35 AM <DIR> CPUID 08/25/2015 03:41 AM 26,759,168 CPUID.sdf 08/25/2015 03:33 AM 887 CPUID.sln … |
| | I wrote the following program to access an object's private members via its address. How is it possible that the following code did not give me *ANY* error? The code compiles and gives me the right answer. Does this mean C++ is inferior to other languages in its ability to … |
| | I created a simple cpp file with no errors (hello world project) but it won't launch. #include <iostream> using namespace std; int main() { cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!! return 0; } here is the video of it: [Click Here](https://www.youtube.com/watch?v=CrJD-ZNpqI0&feature=youtu.be) |
| | I am a kid of 15 and just started learning cpp. I want to make a simple programme wherby if i say hi to the computer it must respond by saying hello to me. So please give the coding or programme for it. |
| | i'm converting the VB6 DIB code to C\C++ from: http://www.tannerhelland.com/42/vb-graphics-programming-3/ **V – Using DIB Sections** but doing by steps... how can i convert: ReDim ImageData(0 To 2, 0 To bm.bmWidth - 1, 0 To bm.bmHeight - 1) to C\C++? for then use it on GetDIBits() function  |
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