51,593 Topics
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| | Hello guys please help with my simple project. I'm new to c++.This is the problem. USING FOR LOOPING STATEMENT. CREATE A C++ PROGRAM THAT WILL ASK 10 INPUT VALUES. THE PROGRAM SHOULD BE ABLE TO ADD ALL THE INPUT VALUES AFTERWARDS. Thanks to those who will help. HAVE A NICE …  |
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| | How can we insert two independent random number to two equations (x,y) contain two parts like this: x = a* randomnumber1 + b* randomnumber2 y = c* randomnumber1 + d* randomnumber2 these two random number should be independent. Thank inadvance. |
| | 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 … |
| | Hello, I need some guidance with my third button. I have created a GUI that so far displays contents from from two folders by using folder browser dialog. All I want to do is compare the filenames between both folders and display the differences in a third listbox. I would …  |
| | Hi can you help me. I was assigned to create a stack in c++ and my professor asked to put arrays inside each stack. how do i do that? |
| | 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 … |
| | Hy Guys,I Need Your Help Regarding This Question.. I run this Program on Dev c++ and Compiler did not Show Error but During INput I can not input Name and Address in both student class and School Class.. Sorry For bad English.. :) #include<iostream> #include<string.h> #include<fstream> using namespace std; class … |
 | I'm looking for an algorithm, pseudocode or any langauge, to generate random numbers with the following characteristics: integer values in the range 0-n lower values much more likely to happen than higher values, eg prob of 0 is n/(n(n-1)), prob of n is 1/(n(n-1)) - linear relationship between value and …  |
| | the program is supposed to find the sum of 10 integer numbers stored in an array but i'm having this error: [Error] invalid types 'int[int]' for array subscript. this is my program: #include<iostream> using namespace std; void readarray(int array[][30], int rows) { int i=1; cout<<"Enter 30 Numbers into an array:"<<endl; … |
| | Hi guys! I'm new in c++ so I really need your help. I have this code but I have to use classes, how can i modify the struct to class? Please help me. #include <iostream> #include <cstdio> #include <cstring> #include <cstdlib> #include <conio.h> #include <iomanip> using namespace std; int main() … |
| | I am trying to populate textbox on winsows application from database. The stored procedure pulls data using datareader. Data looks fine when I execute stored procedure on SQL server management studio. But when I am trying to populate from the application its not getting same result. I apprecaite all help. … |
| | Hi, I am trying to develop a software which can get information like listed bellow In System : -SERIAL NUMBER(847MY5N15) -UUID(4C4C4554-0134-3710-804D-B8C04F594E31) -BIOS VENDOR(Dell Inc.) -BIOS VERSION(A09) In Motherboard(Optional, but will be good if : -MOTHERBOARD VENDOR(Dell Inc.) -MOTHERBOARD MODEL(02XJP9) -MOTHERBOARD VERSION (A03) -MOTHERBOARD SERIAL NUMBER (/847MYN1/CN1296112402BB/) In CPU: -CPU MODEL(Intel(R) …  |
| | Hello, I am looking forward to buy a new C++ book which includes more advanced topics in algorithms, templates, STL, memory management, covering C++11/14 . I browsed on amazon but i feel confused, most of books are for beginners, more advanced ones looks like they do not have good feedback. …  |
| | Hi, I hope you can help me out of this because i really dont understand how to fix this code anymore, i tried and tried and it don't work. When i debug this code in Microsoft Visual Express 2010, it says the following erros are: 1>------ Build started: Project: Adreesbook2, … |
| | Hello, I am trying to write two equations, each element in the equation is an arry , double XDiffusion (int D,int D11, int x, int s) { float DeltaX; return DeltaX; } double YDiffusion (int D,int D11, int x, int s) { float DeltaY; return DeltaY; } int main() { … |
| | Hello guys, our teacher gave us this code to transform it into a code that includes classes. It is about students registration into courses. It has also logical problems. Since Im new in C++ I really need your help, this is important. thank you |
| | Assume that a file exists. How to replace the occurrence of a character with another character? |
| | Hi guys! I'm new in c++ so i really need your help. I have to do a project Student Course Registration. I have to do a program where students can insert their id name and course. I have to use classes in c++ |
 | I'm a noob at C++ and this is the first assignment in my class. I'm not sure If I did it right. Can someone please check and correct it please? Thank you Question: develop the pseudo code for the following: Negotiating a consumer loan is not always straight forward. One … |
| | Hi, Guys i just wanted to know whether set store elements in specific order or it contains unordered elements only. As per c++ specification http://www.cplusplus.com/reference/set/set/?kw=set Sets are containers that store unique elements following a specific order. As per my knowledge they are not ordered in the sense that you can't … |
| | Write a program that will print two closest pair integers in an array (if there are more than one pair with the same distance, then print all pairs). //Example: 6 -3 8 0 5 //The closest numbers: 5 6 -> difference is 1 In the following program I am using … |
| | I really need help with this. I've been using Visual Studio for C++ and Assembly, and I can build my projects with zero errors, but when I try to Debug I get the message: **Unable to start program "C:\mypath\Debug\filename.exe" The system cannot find the file specified.** or if I Start … |
| | Hello, I try to catch the HTML code from a webpage after I have logged in to a page. HTML is returned but that is the orignal HTML only BEFORE I logged in. For example I try to find "Log out" and other content in the string "getDocumentHTML" returned which … |
| | Hi, In below design a big problem is whenever DoSomething() signature is changed to introduce new functionality caller class (return m.DoSomething()) also needs to be changed which might not be aware of this change. kindly suggest good design to get rid of this flaw. class MyOtherClass { int m; public: … |
| | Hi, In below function i am not able to figure out why predicate function cmp_str can't be used with for_each algoritham while using this algoritham with map. #include <iostream> #include <map> #include <utility> using namespace std; struct cmp_str { bool operator()(string a, string b) { return a.compare(b)<0; } }; int … |
| | This program challenge was given to me by my Professor for extra credit. He said it includes some programming that we haven't learned yet in our C++ class. Messed up... Ideally I would love if someone would do this for me, but we all know that's not happening. lol Anyways...could … |
| | Hey my People, I'm brand new in C++ that i cherish so much to learn. Please can you help...What do i need to install as system environment so that i could work with my computer having just Windows Pofessional? i need you to give me the element to install like … |
| | Hey my People, I'm brand new in C++ that i cherish so much to learn. Please can you help...What do i need to install as system environment so that i could work with my computer having just Windows Pofessional? i need you to give me the element to install like … |
 | We started learning C++ in our class at school a few months ago, and hence, we have to download and use Turbo C++ 3.0 (90s software, ugh), as we don't have to change the syntax at all. Till now, I managed on Code::Blocks on my sister's Windows, but I want … |
 | Hi Dw. I'm new to C++ nor Win32 app dev. I want my app to stay open or running even if I'm not interacting with it. And how to write a close call. In VB to close it you just right: Close() How can I achieve these two? Also how … |
| | I'm getting "error C2039: 'AllocSysString' : is not a member of 'System::Char' error. I'm trying to assign the result to a string variable. wchar_t str; return str.AllocSysString(); But I'm getting the above error. |
 | My tables are PURCHASE and SALES... In PURCHASE table, fields are CODE(primary key), PRICE, DATE, TOTAL, QTY... when I'm entering datas in form and when i click submit, the datas stored... but when i enter same DATA(CODE), it is showing error... i don't want to show the DEFAULT ERROR message... … |
| | I don't understand how to debug the following code "on paper" (without a compiler): #include <stdio.h> #define SUB(T,x,y) {T x=y++; {T x=y++;}} int x; static int y; void f(int n) { if (n) { SUB(int,x,y) f(n-1); } } main() { extern int x,y; int i=0; for ( ; ++i<3; ) … |
| | I am having a hard time comparing my if else statements and getting it right. I want to ask for male or female, and if male then I can respond "Hello, Mr...." and if it is female then I can respond "Hello, Mrs...." #include <stdio.h> int main (void){ int firstNum; … |
| | Hello, I use the webkitbrowser which is simular to the webbrowser. Now on a website, I want to programatically insert a string into a textBox. This I have succeeded to do like this: webKitBrowser1.Document.GetElementById("txtbox1").SetAttribute("value", "hello"); After this I will need to programatically click a button that will check that "hello" … |
| | I searched that question but didn't understand the answer that is: We can traverse the tree in O(n) time and insert each element into an initially empty AVL tree; this will take O(nlogn) time overall. To get O(n) ‘best-case’ performance we can do something that’s a bit of a hack: …  |
| | Write a program that will print adjacency matrix of a directed and weighted graph. Weights are positive real values, and graph is strongly connected. Then, print values of two vertices which indices are read (values of each vertice are functions: **sin(index),cos(index),index^2,sqrt(index)**). How to check if a graph is strongly connected? … |
| | I am working on C# window form application, which do insert, update of data into the database. I am having trouble, since I am new into this. I have declared temp variable that gets value if record exsits in the database. But in some scenarios if record is loaded onto … |
 | Hello everyone, I am trying to write an object loader in c++. Currently, I have a file that is made up of many sub objects and I am having a little difficulty figuring out how to process the data. First of all, here is an example of part of the … |
| | I need some explanation with the logic in the following program: Create a data structure such that it contains of three singly linked lists that are connected to one central node. **i-th** list can only have elements such that **list_element % 3 = i**. First element of every list represents … |
| | Hi, I would like to learn dbus as i encounter it more in my daily work.The problem is that the applications already using it are very complex and there is very less scope to understand exact use of DBus communication. I know other IPCs like message queue, socket etc, the …  |
| | Hi Guys! "can you teach me how to Disable Button Until All Textbox Is Not Empty." in my design form Named login. I have 2 textbox and 2 buttons I want to disable the buttons until all textbox is not empty i try everything i know but its not working … |
| | I want to make a menu driven program in which I have 4 options 1) input() -Inputs the data WITH A UNIQUE KEY (AND CHECKS FOR REPETION) and writes it to a file 2)output() - Outputs the data using a UNIQUE KEY (WHICH WHEN NOT FOUND GIVES AN ERROR) 3)delete() … |
| | Write a program that will read data about **n** movies (data about a movie is defined in structure). Sort data about movies (criteria of sorting is by title of a movie and by surname and name of an actor). Read data about one actor, and print data about all movies … |
| | Write a program that reads **n** strings (with blank spaces). For each read string, check if it is a permutation of some other read string. If it is, print the found string and all other found strings that are permutations of the found string. Uppercase and lowercase letter are not … |
| | Write a program that reads an array of **n** polynomials and prints their squares using arrays. Example input: n=1 1. polynomial: order: 2 coefficients: 1 1 1 Output: square(x^2+x+1)=2x^3+4x^2+2x+1 The following code gives **SIGSEGV** segmentation fault: #include <stdio.h> #include <stdlib.h> #define MAX_ORDER 10 typedef struct term { int coef; int … |
| | c++ code to count and print the number of lines,words,and word frequencies in the file |
| | I am having problems to figure out how to do arithmetic operations on positive integers represented as strings (addition, subtraction, multiplication, incrementing and decrementing). I did the addition as following: #include<stdio.h> #define MAX 100000 typedef struct { int arr[MAX]; }NUMBER; void read(NUMBER *add_num) { int i,digit=0; char ch[101]; scanf("%s",ch); while(ch[digit]) … |
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