I would like to have a List with Lists. (every list with have strings ints and i would like to be able to have all the lists in a array) is this approach too expensive and i will have problem with the memory or something? is it better if i have a list with the names of the lists and access them that way?
In order to give a better understanding of what i need this is what im trying to do but throws errors:
public List<MusicItem> Theme1 { get; set; }
public List<List<MusicItem>> AllThemes { get; set; }
AllThemes = new List<List<MusicItem>> {
Theme1 = new List<MusicItem> {
I'm trying to write a function that takes two linked lists and creates a third one with only the common elements.
It assumes the first list (the caller) has no dups, but it doesn't seem to be working. The program doesn't crash, it just hangs when it is supposed to display L3 (the third list)..everything else runs and is displayed fine.
I do not know how to write the part indicated in Bold that represents the number of elements of contour. As seen from the code used for the tesselation OpenGL.
I've been given a ton of code (5 files worth) that does various things with a linked list. I'm supposed to add a function to split this list into two separate lists by testing whether or not each number is <,=, or > a certain element. I am completely lost and don't understand linked lists at all. I'm also a bit lost on pointers since it's been almost a year since I've looked at programming, but I could probably figure that out if I could just get this linked list thing down.
Here's my SplitLists function so far:
void UnsortedType::SplitLists () { // Pointers for each new list NodeType* list1Ptr; NodeType* list2Ptr;
[Code] ....
In other places in the code, I have GetNextItem, ComparedTo, PutItem, and ResetList that were already given to me.
I am creating linked list of memory blocks. Allocate a block of 512 bytes and insert into the first node of list. then Allocate a 2nd block of same size and add to the list. now free each block from the list.
How would I go about creating a tree like structure using linked lists, I am thinking of making a rubix cube solver program, what I want to do create nodes that each do one operation like turn left, right, up, down but I dont know how to go about starting this.
I need to create a templated doubly linked list, with an iterator class within the list class. This program is to function just like the STL list class but I only need to implement functions that I am using, My trouble is I am kind of clueless on the iterator part and the fact that the list is templated is giving me syntax grief. I have pasted the code I have done so far.
1. On the syntax implementing the list and iterator functions outside of the class 2. I am not sure when to deference the iterator in the functions, but think I have it right so far 3. For the reverse function can I copy the list into a new list in reverse then re add them to the original list overwriting the same values? I have the code I have so far there 4. For the iterator erase function, I am not sure if I am deleting the node correctly. 5. I am not sure if I need template <typename T> above the iterator functions. Does the iterator class need to be a template? Right now it is not.
// Templated doubly linked list class
#include <iostream> using namespace std; template <typename T> class list { private: Node *head; Node *tail;
In the program I'm writing, I'm creating a linked list of students with individual data read from a file. At the moment, I have written two functions to accomplish this; one that creates a student node and fills it from a line file, and a second that calls on the first to create a linked list. It seems to work fine except for one thing; It seems that EOF is being reached first, but the function continues on anyways? Here is my code so far...
Well, basically, what I've been doing was creating a class that would implement the concept of Double Linked List, but that would behave like a queue ( the STL implementation is deque, or Double Ended Queue ).
The problem occured when I have been trying to generalize the class using templates. I mean, why use only integers ? Why not double or char or what not ?
Worked perfectly before including all the template stuff..
// Source.cpp <=> Main.cpp #include <iostream> #include "DList.h" using namespace std; int main(void) { DList<int> *list; list = new DList<int>();
[Code] .....
The errors returned by the compiler:
Error1error C2955: 'Node' : use of class template requires template argument listc:usersjumperdesktopc++ otherdouble linked listdouble linked listdlist.h6 Error2error C2955: 'Node' : use of class template requires template argument listc:usersjumperdesktopc++ otherdouble linked listdouble linked listdlist.h6
I've written this class and struct to create a singly linked list. The data is stored in the binary file which I've opened and read. I'm trying to load said data into a class type array. The errors I'm getting are "incompatible types in assignment of 'StatehoodInfo' to char[3]" Lines 130-134 is what I was working on.
I wrote this program to create a list of medical resources and their attributes, a task I have been performing repeatedly lately. I'm still fairly new to C++, so I thought to create a structure "Resource", and then an array of those structures "city[300]". My problem is that the input doesn't seem to be happening: the program runs, but when it prints to screen/writes to the file at the end, all the shows is:
Resource Type: Name: Address: Phone: Website:
for every resource that was input. All the fields are blank.
See, there are two do while loop, if I need a permutation with more than two lists, there'll be more and more do-while loops, that's make code looks ugly, I wonder if stl has some tricky way that can do this with just one next_permutation.
In our homework assignment it states to, "write a set of dynamic linked lists" and so on. Now, the problem I'm confusing myself is at the storage inside of each node. To my understanding, each node contains the prev and next nodes, but also a pointer to the data, in this case being a string. He has asked us to manage these strings as rows of chars such as
char[0] = c // first node being addressed here char[1] = a char[2] = t char[3] = char[4] = d // second node starting here char[5] = o char[6] = g char[7] =
I have written my code where each node is holding a string, not separated as shown above... my question is to how you can build your doubly linked list where each node is being address a set of chars.
New to this C stuff, and was going through Kochan's book Programming in C and got to chapter 9 structured lists.There's this problem that requires you to set a Variable N that calculates days.
N = 1461 x f(year, month) / 4 + 153 x g(month) / 5 + day where f(year, month) = year-1 (if month <=2) =year (otherwise)
I was having issues getting the right values for N so I tried to see what T1.year gives me when I type in firstDay.month=02, firstDay.day=08 and firstDay.year=1999, and I got 8. According to book I should be getting 1998.
I'm trying to do is let the user type in something like A654321 (note: these are ALL the characters, i.e. 'A', '6', '5', '4', etc..) Then I just want to display that current number back to them and I am getting some weird pointer memory allocation error..
#include<iostream> using namespace std; //To rename data-type "int" or integer to "element" (Both are equivalent).. typedef int element; //To declare an appropriate SENTINEL. char const SENTINEL = '#';
[code]....
It seems like the first part that it bugs out at is in my Clean(); function..
Unhandled exception at 0x01383FBB in VegMe.exe: 0xC0000005: Access violation reading location 0xCCCCCCD0.
It doesn't like head = head->next; ?Also, ignore the ReverseList(); function, it is not being used as of now.
What I want to create is a program that sorts through a huge list (millions of lines).
I want it to get rid of any line that contains a word that isn't in an English dictionary.
Example list:
00sdfdsf ahdadsg angel ksjflsjdf green green000 carrot
and it would go through millions like that, giving me only:
angel green carrot
as my new list.
How could I go about this? What programs would I need? And at the very least how can I remove unwanted things like numbers, double letters, underscores etc.?
