.net - Project Euler 76 - List All Partitions For A Given Number?
Aug 16, 2011
Here is how Project Euler Problem #76 sounds like:"How many different ways can one hundred be written as a sum of at least two positive integers?"I've struggled to get it right for a couple of days, tried to solve in different ways and got mostly the same results for small numbers (those that are easy to check). I ended up with an algorithm that lists all partitions for a given number in alphabetical order, descending (starting from "N-1 + 1"). Written in VB.NET:
Dim ub As Integer = 6
Dim wayCount As Integer = 0
For n = ub - 1 To 1 Step -1
[code]....
I've studied these links:
(ProjectEuler) Sum Combinations - provides a mathematical solution, which does not list all combinations
Generating the partitions of a number - is in python, which I cannot read/run/understand.
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Mar 15, 2009
I would make an unattended recovery disk for my Dell laptop using Windows PE 2.0 and, so I am in need of a program which analyzes the first disk on the system in order to get all partitions.
The program should check:
- if there is an OEM partition (hidden);
- the number of logical partitions;
- the number of primary partitions.
Then, if there is only a primary partition, the program should delete it and create two primary partition...Is it possible?
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Sep 17, 2010
Can I check how many drive partitions there are in the system and which dirve letter is CD/DVD or hard disk partition.
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Nov 5, 2011
I wish to make a project where a teacher views a list box with a list of students of a class. When he selects a name from the first list box the second listbox would change its data to show the grades for that one student.
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Aug 15, 2011
I've just converted a project from .net 1.1 to 3.5, and I'm being given loads of warnings in the error list. The program compiles and runs ok, but I think I should probably try to at least reduce this large number of warnings.The trouble is that the error list only tells me about the first 102 warnings. Even when I fix one, the number stays at 102. So I have absolutely no idea how many warnings there actually are. If there are 150, I'd like to get rid of them. But if there are 10,000, I don't have the time to fix them all.Is there a way to see the actual total number of warnings?
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Feb 5, 2012
I am using Git for source control on a .NET project. Is there any way to include the current Git revision number in my EXE upon compile time?
I'd like to be able to have the revision number available for an "About" dialog, or similar. Perhaps there is a way to update Settings.vb right before build?
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Nov 20, 2011
Im trying to make a Console Project that when you enter a number it changes the color of the text and its not working
[Code]...
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May 29, 2009
Project Euler's problem 16:2^(15) = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
What is the sum of the digits of the number 2^(1000)?I have been trying to do this problem for a few days now and i just can't figure out how to get vb.net 2008 to recognize anywhere near that large a number. I have seen in other posts that some software like java has the integer type BigNumber or BigInteger but i cant find anything like that in visual basic. I'm running into this problem a lot using Visual Basic. I also can't seem to find any of the standard upper level math features in visual basic such as factorials and a few others that i can't remember but couldn't find under the math feature. any suggestions? (Sorry let me rephrase, any suggestions on how to do this stuff without switching to a different programming language.)
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Feb 3, 2011
It was very practical to keep build number in VB6, as it auto-incremented that number every time that i "compiled" the program.
There is any equivalent feature in VB.Net? I am using VS 2005.
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Feb 8, 2012
I have ASP.NET Application: I have added 5 classes with different Namespacess in App_Code folder..
In Default.aspx.cs file.. I just want to get the list of available Namespaces in App_Code folder:
I tried : AppDomain.CurrentDomain.GetAssemblies();
but i didn't find Namespace that is available in App_Code Folder
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Mar 16, 2011
I dont know if this is the right area. Please sorry if not.Well, first of all, thanx for your attention.Ive searched the whole web (at last where google can see) for a solution, but i just cant find.The problem is the following: I want a list of all controlls in my project, not only on open forms. The reason is that i want to make an access control, and the admin will set which buttons each users can use.
[Code]...
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Mar 15, 2011
I've searched the whole web (at last where google can see) for a solution, but i just can't find. The problem is the following: I want a list of all controlls in my project, not only on open forms. The reason is that i want to make an access control, and the admin will set which buttons each users can use.
[Code]...
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Sep 29, 2010
Private Sub cmdReport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdReport.Click[code]...
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Feb 22, 2012
Here is the code I have amended after getting the answer from previous thread (Spinning Numbers)
I'm not sure if I am removing the random number from the list or not as the number shown in the Label(currentnumber) does not match the one showing in Label1, which is the one I'm using to check which number has been removed.
Private Sub Tmr_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Tmr.Tick
'Show spinning numbers for decoration
[Code].....
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Apr 21, 2011
[code] I am getting a run time error for this code. How can I change it. and how to limit the loop to print number from 1 to 42 and not 5 in the list ?
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Nov 15, 2011
I'm trying to do a project which involves reading the text from a number of textboxes and putting it into a string.I'm just wondering if there's an easier way to it other than:
CreateString += TextBox1.Text + TextBox2.Text + TextBox3.Text... (etc)
I have thought about creating a For Next loop which would go something like:
For i As Integer = 0 To intNoTextBoxes
CreateString += TextBox(i).Text
Next
But this really doesn't work. I also found something saying that something similar to this would work:
For i As Integer = 0 To intNoTextBoxes
CreateString += Me.Controls.Item("TextBox" & i.ToString).Text
Next
But that didn't work either.
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Apr 11, 2009
How do I access the image list in a vb6 project?
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Mar 24, 2010
Does anyone know how to retrieve a list of reports found in a project?
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Sep 29, 2010
learning about loops (still a beginner) in VB.net. I have got the below code and basically it is meant to stop the loop once it reaches a number above 20. Now, the problem is that it does stop after number 20 but the last number that is displayed in the list is always above 20..... how I can stop it showing the last number as above 20?
[Code]...
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Apr 14, 2009
how to use ListName.Find. I am trying to find a number in an a list of integers.
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May 20, 2012
getting random number from list of numbers is getting me sick. i am trying to do it for like 20 days now but every time i do it ends up in a loop wich crashes the my.settings system. does anyone have an idea how to get a random number from a list. then delete that number so it cannot be called again. my system must mark some items with numbers but non ofthe numbers may be used more then 1 time the max items in my system is 90. so from 1 to 90 without getting 2 times the same number heres the code i tryd
[Code]...
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May 19, 2011
Does anyone know how to add a limit to the number of items in a list box? For example, you can't add more than 10 items in ListBox1.
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Sep 28, 2011
I wanted to see if I could have a list of six check boxes with names of a certain author that people have or have not read. When they are asked to check all that apply to them and then hit submit I want a label to display a message depending on the number of checks they made. So if they have 2 checks marked off then a message could say, "You do not read much of this authors books?" or 5 could say " You like this author, don't you?".
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Feb 26, 2009
I want to list the results in my list box in a numbering format, something like this:
1: Result #1
2: Result #2
3: Result #3
How do you create this type of format in a list box.
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Apr 12, 2011
I have a very simple class that crashes the VB.NET IDE when I added this list. Granted this is a list with 10,000 items but it crashes when I added it to the project. When I delete it with a text editor outside the project does not crash. I have not installed SP1 based on the comments not sure if this is a know problem or not. I can post the project its fairly small as its just text.
Private Shared ReadOnly _mdmCodes As List(Of [String]) = New List(Of String)() From { _
"AAAE-24422", _
"AAFP-02872", _
"AAGG-25572", _
"AAGN-16807", _..........
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Nov 14, 2011
I'm trying to figure out a good way of implementing a List(Of) that holds a maximum number of records.
I have a List(Of Int32) - it's being populated every 2 seconds with a new Int32 item.
I want to store only the most current 2000 items.How can I make the list hold a maximum of 2000 items, then when the 2001'th item is attempted to be added, the List drops the 2000'th item (resulting in the current total being 1999).
Thing is, I need to make sure I'm dropping only the oldest item and adding a new item into the List.
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Jun 2, 2011
EDIT: I am so sorry! I have added my thread to the C# discussion thread instinctively wherein in fact I have been creating my application in VB.NET so sorry! Please transfer my thread to the appropriate location! I am currently trying to mess around with a simple mp3 player and am in the process of creating a shuffle list from all the songs in my playlist.
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Mar 10, 2012
Build a small application that fills a collection (list) with 10 sequential numbers, and then prints the collection(list) in reverse order, skipping every other member, until the entire collection has been displayed. For example, if the collection contained the numbers 1 through 10, they would print as:
10, 8, 6, 4, 2, 9, 7, 5, 3, 1 The print out should be in that order no matter what sequential numbers are in the collection (list). If it were 21 through 30, output would be 30,28,26,24,22,29,27,25,23,21 and so forth.
Note: you must use a collection - do not write down the numbers directly to produce the output. Loops should be employed but the loop control variable should be used as an index or subscript number. Your code should work even if I change the list of sequential numbers to something else. Remember that indexes count from 0 first -- the first item in a collection has index 0, the second item in a collection has index 1, and so forth.
I've got the first part of the problem, getting the numbers in the list box, done with no problem. It's the second part I am struggling with. I cannot get the numbers (I am using 1-10) from the list box to display in reverse order in an adjacent text box.[code]...
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Apr 19, 2009
I'm very new to programming with Visual Studio(just a few weeks). I've read through a beginner's book and I've started to write my first little programs to get used to coding and to improve my skills. One of the first programs I had created was a simple currency converter. I've created a list box and a combo box with a number of different currencies in them and I want to know if there is an easy way to attach a value to each of these selections. For example, if someone selects British Pound in the list box and Indian Rupee in the combo box, I want to be able to have the British Pound be worth 1.67(versus the dollar) and the Rupee to be 25.00(versus the dollar) for example so that I can create a simple function that will change pounds to dollars and then to Rupees so that I can do this calculation with a multitude of currencies. If you have some idea of how I can attack this problem,
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Dec 11, 2009
I am not getting an output with a list, I can only get the last number of the statement in a text box.
Dim lowerLimit, upperLimit, primeNumber As Integer
Dim isPrime As Boolean = False
lowerLimit = CType(TextBox1.Text, Integer)
upperLimit = CType(TextBox2.Text, Integer)
While lowerLimit < upperLimit
[Code] .....
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