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by: t_pet422 |
last post by:
Hi,
I've been scouring the net and reading the PostgreSQL docs for a while
now trying to learn how to create a recursive function in PL/pgSQL
that will return a whole subtree given a starting node. I wanted to
share my summary results here. Maybe this will help someone and save
them from doing a bunch of research (like I had to do :). For the
record, this is the first thing I've ever written in PL/pgSQL,
although I do have significant...
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by: Daniel |
last post by:
I need to build the maze board(like 2d array) using a tree. But I find
that my buildTree function doesn't work. Could anyone give me some
hints on debugging it? Thanks
bool BuildTree(TreeNodePtr *T, int x, int y)
{ if (boardSize == 0) //boardSize is a global variable
{ return TRUE;
}
else
{
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by: Foodbank |
last post by:
Hi,
I'm currently teaching myself C data structures in preparation for a
job transition and I've just passed the point in which radix sorting
was covered in my book. I've recently finished a radix sorting program
and was surprised by its speed. Therefore, I'd like help with a radix
tree program in order to compare it with a prior binary tree program
that I finished. The parts I'm having trouble with are collecting
statistics and...
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by: A_StClaire_ |
last post by:
hi all,
I'm trying to implement Huffman coding on letters of a string. I've
written functions to define the initial leaf nodes (letters and their
frequencies) and to sort them. I've also put together the actual tree
with its appropriate nodes and child nodes.
however I'm having some trouble developing a means of traversing the
tree itself to create the binary key table. i.e., how would I know how
many levels the tree has? this...
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by: mikelbell2000 |
last post by:
I am attempting to write a query that will traverse the relationships
for tables in my database that will provide me the order in which I
need to perform delete operations to avoid running into foreign key
constraints. I have determined the delete order manually, but since the
database is complex and always having to structures added to it as the
scope of the application grows, I was looking for an automated
approach.
I tried modelling...
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by: Christian Rühl |
last post by:
Good Day, folks!
I'm having a problem traversing an XmlDocument tree in C#. I only want
to access the InnerText of the leafs and the names of their ancestors
and show them in a richTextBox. But if I go like this I get the
InnerText of all the nodes and the outcome in my richTextBox is just a
mess.
The XML files i want to handle here have about 2300 nodes, so that
accessing some nodes directly is just impossible.
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by: hornedw |
last post by:
I have been working on a ecommerce website for myself. What I needed
some assistance on was when i was trying to display the
categories/subcategories for the different products.
I decided to use the modified preorder tree transversal algorithm. What
I wanted was on the first page is to display the catogories as follows
Books (35)
Electronics(23)
The number inside the parenthesis being the number of products in that
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by: nishit.gupta |
last post by:
Can somebody please help me for algorithm for postorder bst traversal
without recursion.
It should use stack. i am not able to implement it.
thnx
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by: aemado |
last post by:
I am writing a program that will evaluate expressions using binary trees. Most of the code has been provided, I just have to write the code for the class functions as listed in the header file. However, I am really new to recursion and trees...and this program uses public functions and private helper functions, which I am completely lost in. Here is the header file:
struct CTNode
{
NodeType type;
int operand;
CTNode *left, *right;
};
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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