48,986 Topics
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| | I need to be able to read and write huge files that nearly weighs 20+GB and I need to do it fast. Any suggestions or tips? Thanks. |
| | Can anybody tell me what's wrong with my selection sort of linked lists? It's meant to sort the whole node, not the data. #include <iostream> #include <iomanip> using namespace std; typedef struct node { int DATA; node *NEXT; }; node *HEAD = NULL; void Create(int data); void Display(); void Sort(); …  |
| | included is my entire program... i know exactly what the problem i am having with this is, i just cant figure out the logic to fix it... ive tried about 10 different things so far. I have it so you can input which position you start at... then go around … |
| | Hello. I have a unique situation. I have so many text box's in my form that i wound up making a text box array. Now each text box i make i have to give it a mouse clicked event and mouse moved event. I cannot write these event functions for … |
| | Assignment #2 Write two classes Class RestaurantMenu that has the following members class RestaurantMenu { double price[10]; string Menu[10]; int numMeals; public: RestaurantMenu(); void AddToMenu(string s, double d); void DeleteFromMenu(string s); void ShowMenu(); double FindMeal(string s); }; The Constructor: will fill the price array with zeros and fill the Menu … |
| | hello, I want to get File Name in specific folder with specific extension by using CPP in linux.. example.... suppose Full File Pathname is /data1/test.txt then I want to handle a code with directory /data1/ and extension .txt then code should get file name as "test". this can be achieved …  |
| | Hey all, I'm a beginner programmer and need help here. I can't figure out how to translate a word that begins with a consonant. I have all the code to translate a word that begins with a vowel, and those words translate correctly, but I cannot get the words with … |
| | Hello, I am in the process of creating a program that accepts random numbers, put them in an array and sort them using different types of sorting algorithms. I then passed the array as an argument to the "BubbleSort" function, however, when I try to call the array in the … |
| | Hey guys. I am somewhat new to the C++ language and was wanting to make a basic text editor. For this i was going to use Nodes and linked list to accomplish this. the main thing i need help with at this moment is creating a command prompt for the …  |
| | I was reviewing the code at the following two sites. I noticed that memory allocation "new" has been used to allocate space for the Node(s). How are they freed?. very good codes. http://visualcsamples.blogspot.com/2010/11/sparse-matrix.html http://www.syntax-example.com/Code/implement-subtract-function-big-number-992.aspx |
 | I know the purpose of keyword but then I still not really know when should i use. But I sure I will optimize my code. So is it ok to i use volatile keyword on all my variables? So that it won't optimize the wrong thing.  |
| | /***** The prompt i have is : use a class with 3 member functions named InputMatrix, Calculate, and OutMatrix. The program will prompt the user to (e)enter the matrix data, (c) to calculate the matrix multiplication, (d) to display the input and output matrices, and (q) to quit. no exit() … |
| | if ive a 1000 songs,using shuffle whats the probability, on average, how many tracks will be played before a previous song plays again. tricky probability Q, getting a few different answers, with some variation of accuracy!! thanks |
| | #include<iostream> using namespace std; struct Student_Record{ int id_num; int assignment; int quiz; int test; char grade; }; void get_data(Student_Record &p); int calc_mark(Student_Record p); Student_Record read_data(); void print_all(const struct Student_Record p{}); int main() { Student_Record amir,naim, amirNaim[2]; int amirtotal_mark, naimtotal_mark; get_data (amir); amirtotal_mark=calc_mark(amir); if (amirtotal_mark>=60) amir.grade ='p'; else amir.grade='F'; naim= read_data(); …  |
| | I have a project going (the idea for which I got from a website a couple of years ago) and its been going pretty well. However, I have come upon a strange error, which I can't find the source of (well, I know the source but I don't know what … |
| | Hey guys, I'm getting some kind of linker error. Any help would be appreciated. Here is what I have.. Header File: #ifndef _LinkedSortedList_ #define _LinkedSortedList_ #include "LinkedNode.h" #include "SortedList.h" template <class Elm> class LinkedSortedList : public SortedList<Elm> { public: LinkedSortedList(); ~LinkedSortedList(); void clear(); bool insert(Elm newValue); bool getfirst(Elm &returnValue); void … |
| | Hi ive developed a code that does 2 things. It is about 20 students doing a test and getting a mark out of 100. First is using the class, it will look in a file, display the names of all the students(20) and their respective test scores.It will also show … |
| | I Got STUCK ON PART 7, would appreciate it if someone can help out. I have it due on sunday Thanks we are going to implement a slightly different version of Roulette. In our version there will be only one player and the winner is determined solely by the slot … |
| | I am getting the error from the title, when I try to execute this piece of code : list<Part>::iterator i = bullets.end(); --i; if (!dartCollided) { dartCollided = true; Part *temp = &(*i); &(*i) = new BrokenPart(*i); //line giving the error delete temp; } Could someone help me point out …  |
| | I am teaching myself C++ and wrote a program that does the queue data structure. It runs corectly. I would like some feedback on how I can improve the program to make it run faster, use fewer lines of code, or be clearer to someone else. I haven't added my … |
 | can anyone send the c++ code to count the number of repeated words in a text file...  |
| | Hi im trying to create a code where it would read from a separate text file some names and grades, then display them. However i am asked to use a class to "store"(if thats the word) them as below: #include <iostream> #include <fstream> using namespace std; class student { private: … |
| | I Got STUCK ON PART 7, would appreciate it if someone can help out. I have it due on sunday Thanks we are going to implement a slightly different version of Roulette. In our version there will be only one player and the winner is determined solely by the slot … |
| | I need to take difference between two dates in normal date format like "2012-03-30 17:21:33.027" using time_t..previously i was using unix timestamp so i used data type long int...but i need to know how to compare using time_t... plz help.....  |
 | Hello Everyone , I Have Made a Simple C++ Code And I Get Some Errors I Have Been Trying To Solve this For Like 2-3 Days :( I am a Beginner in C++ #include <fstream> #include <iostream> #include <cstdlib> using namespace std; int main() { for char name[100]; int age; … |
| | Write a C++ program such that its execution will keep asking the user to enter a pair of integers, start and finish, and will terminate when either start>finish, or EOF or an invalid input has been encountered. Every time a new pair of integers start and finish are read, the … |
| | help me please this is a code #include <iostream> #include <string> using namespace std; class Student { private : int StudentID ; string FirstName; string LastName; string CourseName; double FirstExamGrade; double SecondExamGrade; double AssignmentsGrades [5]; double FinalExamGrade ; double Avr_Of_Assignment; double TotalGrade; public : void SetFirstName (string S1); void SetLastName … |
| | 1**. Write a c++ code to copy the contents of one string s1 into another string s2 by using loop where s1 and s2 are two dynamically created pointers.**  |
| | Hello all I have a bunch of aggregate elements within my array. This array is for vertex positions in OpenGL. and I need to make a switch without having to bind more data to OpenGL. To do this I must put an if statement within the array or a booleon … |
| | I'm trying to write a program that asks the users for a set of numbers which the program then sorts and counts the frequency of. I struggling with understanding arrays. I have one array in particluar called frequencyArray that I'm trying to print but it keeps returning the value 0. … |
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