49,766 Topics
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| | I am teaching myself C++ and amd now trying to simple programs related to data structures. I wrote this code for a simple stack. It is not working. I am frustrated and tired so I cannot think through the issue. There are two main problems with which I need help. … |
| | Quick synopsis: Program sorts array the user inputs. IE enter 5,6,78,4,2 and it will sort it in order. Through various algorithms. This works great with quick small lists, but for some reason with one large number or longer lists the program will crash. Here are the files if you would … |
| | This is a recursive selection sort i would like to be able to change this code without the use of loops into a bubble sort for my assignnment. Ive been trying for an extremelyy long time and im also fairly new to c++ and im struggling. any help would be …  |
| | ok, so I have to do this problem to solve : Create a class Road that contains different stop points. A point is characterized by latitude, longitude, altitude. a. Validate the correctness of the values b. Create an array of Roads and display it c. Display the longest Road d. …  |
| | I decided to learn C++ STL and I was exprimenting with STL containers. I saw this example [here](http://www.cplusplus.com/reference/stl/vector/insert/): // inserting into a vector #include <iostream> #include <vector> using namespace std; int main () { vector<int> myvector (3,100); vector<int>::iterator it; it = myvector.begin(); it = myvector.insert ( it , 200 ); … |
| | i have some kind of code in the error but i have searched and looked i do not no what is wrong i am getting this erro message :error C2065: 'loop' : undeclared identifier but i thought that you did not have to id loop they are not a varibale … |
| | I have a text file like: ABCD=ABC+BCD+CDA ABC=AB+BC BCD=BC+CD CDA=CD+DA AB=A+B BC=B+C CD=C+D DA=D+A I want the user to input the result. The program should give me the output to the lowest level. e.g. User Enters: ABCD then the program should display ABCD = ABC+BCD+CDA, ABC=AB+BC, BCD=BC+CD, CDA=CD+DA, AB=A+B, BC=B+C, … |
 | Hai, I'm a C++ beginner with self learning.I have a function that return a vector string eg: vector <string> result :"PA1070","PA1088","PA1091","Pa1070","PA1044"..... How do I compare the vector string element in a proper way? I tried to compare (if result[0] < result[3] ) cout << "True"; else cout << "False"; it … |
| | #include<iostream.h> #include<conio.h> void main() { int z[33]; clrscr(); cout<<"Enter any Password (32 character max): "; for(int i=0;i<33;i++) { z[i]=getch(); if(z[i]==13) { break; } cout<<"*"; } cout<<"\nYou entered : "; for(int j=0;j<=32;j++) { if(z[j]==13) { break; } cout<<(char)z[j]; } getch(); } |
| | So I have completed my program thus far to take an array the user desingnates and breaks with any letter. After outputting what the array holds it sorts and re prints. I want to also include the time it takes this to happen. I am trying to use the gettimeofday …  |
| | In straight-11 ping-pong, the first player to reach 11 points wins; the player need not be ahead by 2. Suppose that when Ada plays Blaise, Ada has a .56 probability of winning any given point. We want to write a program that simulates a game between Ada and Blaise, with …  |
| | Hi There, I hope somebody can help me, I work with Visual C++ 2008 with QT libraries I am trying to include a Interop.Encore.dll file into my program to access our ERP system business objects and post new data to the ERP We have a Visual Basic program geared to … |
| | I wrote this code to sort 3 integers, but I can't figure out how to add the 4th integer. #include <iostream> using namespace std; int main () { cout << "Enter 4 integers: "; int a, b, c, d; cin >> a >> b >> c >> d; if (a<b) … |
| | I was asked to create a program that enters numbers and displays the before sorting order, and the sorted order displaying the previous node address and the next node address. I was told not to swap the data inside the nodes, but move the nodes themselves. I have a problem … |
| | ok so I have #include <iostream> #include <cmath> #include <iomanip> using namespace std; int main() { { cout << "****"; cout << "***"; cout << "**"; cout << "*"; } { cout << "*"; cout << "**"; cout << "***"; cout << "****"; } { cout << "*"; cout << … |
| | write a program to store 10 numbers in an array and then display the sum of didits of the smallest number. |
| | Hello all. I have a small web server that i am using in one of my projects. It is designed to receive a message when somone click on a link containing my ip address. Its used for a email verification/ de-verification. I can run this web server and then type … |
| | Well Been working with winsock2, and trying to send POST request to my server but currently no luck with the packet header, so if anyone has a tutorial on how to do this with sprintf code sample: sprintf(Post_Request, "POST %s HTTP/2.0\r\n", Post_Request); sprintf(Post_Request, "%sContent-Disposition: form-data; name=\"field1\"; text=\"%s\"\r\n", Post_Request,text.c_str()); sprintf(Post_Request, "%sContent-Disposition: … |
 | I'm doing a program where I need user to enter the name of a text file. I want him to be able to see the path if he enters pwd. Right now this is very OS related and only works on Mac OS(I guess). So I have done string real; … |
| | Greetings! I was looking through this Rabin-Karp algorithm code. Everything is fairly clear to me, except those "-48" numbers (lines 13, 14 and 25)... So I was just wondering if anyone could explain, why are they used for? (maybe for string to int transformation?). Can you please explain it with … |
| | Well my problem is on boardGenUSER I don't know why... it's print out the number 2 into the 0 row and 8th column :-/ I really stuck and i need points to continue please check out my code below and let me know... Thank you in advance!!! Regards #include <iostream> … |
| | In desperate need of help! Can someone please show me how to simply display a pgm image in c++. I have no prior experience in multimedia programming. Thank you! |
| | There is something wrong with this program. The code is ok, the program runs, but it stops after asking the user how much their income is. Where am I going wrong? (Sorry, it's really long, but I can't figure out where the problem is) #include <iostream> #include <string> #include <cctype> … |
 | Hi, I found the examples of explicit specialization, but I have a vagueness about code: using namespace std; template<class T = float, int i = 5> class A { public: A(); int value; }; template<> class A<> { public: A(); }; template<> class A<double, 10> { public: A(); }; template<class … |
| | I have a vector that contains Points on a board and I would like to do the following: 1) if a Point appears an even number of times i would like to delete all of the same Points. 2) if a Point appears an odd number of times i would …  |
| | Hi there, I am using MATLAB and am trying to mex a c++ file. I get a load of compiler errors and I am not sure why: correspondPixels.cc(57) : error C2065: 'Matrix' : undeclared identifier The line of code this relates to is: `Matrix m1, m2;` Now the class should … |
| | Yes, I know that this is homework. But I need help. This is code the teacher gave us few days ago. This is a header file. And I needed to do the following: My problem is that I didn't know how to use my vecetor in my .cpp file. How … |
| | I've been making a program for fun and I'm an amateur programmer too. I added a feature to a program that let's it read users externally from files to log in instead of storing user data on the code so that new users can register. I'm having problems in line … |
 | Please i'm working on a linked list and want to overload the ++ operator in order to use a dummy pointer to loop/traverse through the list. But its gives me a compiled-time error. Here is the actual code: class Node { private: string value; Node* next; public: ~Node(){del ete this;}; … |
 | Hello, Wondering if you can help me.. I have a variable, that each time needs to multiply by 2 (I know, it sounds simple.. I'm probably being an idiot) but it works like this: LOOP 1 offsetX = 0; offsetY = 0; LOOP 2 offsetX = 2; offsetY = 0 … |
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