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• how to find n choose r without overflow

  - by iamrohitbanga

  I need to find the value of n choose r- the number of ways of selecting r objects out of n. if i first find the numerator then the denominator. i get an exception. i am using java. how to do it for example for 44 choose 42

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• Algorithm to find 'maximal' independent set in a simple graph

  - by none

  Hi, in words, can someone post directions towards finding the 'maximal' independent set in a simple graph? I read up something from ETH site which said one can find such in O(n) by simply picking a random vertex v and than scanning the rest and attempting to find if there's an edge from v to the rest. Thanks

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• Find Specific Rows

  - by H07R0D

  I'm trying to build a rather specific query to find a set of user_ids based on topics they have registered to. Unfortunately it's not possible to refactor the tables so I have to go with what I've got. Single table with user_id and registration_id I need to find all user_ids that have a registration_id of (4 OR 5) AND NOT 1 Each row is a single user_id/registration_id combination. My SQL skills aren't the best, so I'm really scratching my brain. Any help would be greatly appreciated.

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• How do I find latex source-code?

  - by Usagi

  Good morning (PST). Does anyone know where I could find the code that LaTeX uses to typeset inside the tabular environment? In the past I have looked in style files but I don't know where to find intrinsic LaTeX commands. -Thank you so much.

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• Visual Studio - how to find source of heap corruption errors

  - by Danne

  Hi, I wonder if there is a good way to find the source code that causes a heap corruption error, given the memory address of the of the data that was written 'outside' the allocated heap block in Visual Studio; Dedicated (0008) free list element 26F7F670 is wrong size (dead) (Trying to write down some notes on how to find memory errors) Thanks in advance!

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• Find the element with the most "neighbors" in a sequence

  - by Bao An

  Assume that we have a sequence S with n elements <x1,x2,...,xn>. A pair of elements xi,xj are considered neighbors if |xi-xj|<d, with d a given distance between two neighbors. So how can find out the element that has most neighbors in the sequence? (A simply way is sorting the sequence and then calculating number of each element but it's time complexity is quite large): O(nlogn) May you please help me find a better way to reduce time complexity?

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• In php find first date and last date in a month

  - by Karthik

  Whether anyway to find first date and last date in a month. Suppose have the date today as 21-04-2010, i want to find the first and last date of this month in php. I did this in mysql, but i need in php. Any one can help, Thanks in advance.

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• Find file that could be in one of three locations

  - by every_answer_gets_a_point

  i need to write a vba script that will find a file. the file could be in three different locations how do i find where the file is? the file must have a specific string as part of the file name my file name could be 9424.bas or 9424a.esy or 9424_.bas or 9424...esy, i dotn know what the file name exactly is but i know the important characters 9424

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• Find time zone from IP address in C#

  - by theburningmonk

  Is there a way to find the time zone a user is in when all I have is their IP address? I'm looking for the time offset I need to apply to the server time in order to find the time for the user's location. Thanks,

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• Find a date between start_date and end_date

  - by Margaret

  I have a table of events with a recorded start and end time. I want to find all events that occur on a specific date. Some events started a year ago and some will continue farther ahead. I would like to be able to pick for example May 20, 2010 and find all events occurring on that date.

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• Find out what variable is throwing a NullPointerException programatically

  - by Hectoret

  I know I can find out if a variable is null in Java using these techniques: if (var==null) - too much work try { ... } catch (NullPointerException e) { ...} - it tells me what line is throwing the exception using the debugger - by hand, too slow Consider this line of code: if (this.superSL.items.get(name).getSource().compareTo(VIsualShoppingList.Source_EXTRA)==0) { I would like to know if there's a generic way to find out programatically what variable (not just the line) is throwing the NullPointerException in a certain area of code. In the example, knowing that

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• How to find out the subclass from the base class object

  - by Vaishak Suresh

  Is there a way to find out the derived class's name from a base class object? ex: class A{ .... } class B extends A{ ... } class c extends A{ ... } now if a method returns an object of A, can I find out if it is of type B or C?

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• how to find passphrase in an image .jpg?

  - by Abhilash M

  Is there any tool or software to find passphrases in an image like .jpg? or Should i use any programming in this regard, i googled but din't find any guidance?

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• find controls from dynamically created table

  - by tina

  hi, i wrote a function to create dynamic table in code behind on selectedindexchanged of checkbox, that is when user will check 2 checkboxex 2 tables will be generated with textboxes, Then on button click i want insert values of these textboxes in database, for that i want to find textbox using findcontrol,but i could not find it, So i called same function of table creation on page load, but then it shows error that textbox is having duplicate id Plz tell me solution for this. thanks

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• Find Rank in Microsoft Report

  - by Alex Essilfie

  Is there any way I can find the rank of a set of values in Microsoft Reports? For instance, in order to produce a table like the one below, what function/formula do I enter in the Rank column? +------+-----+ |Value | Rank| +------+-----+ | 12 | 3 | | 30 | 5 | | 5 | 1 | | 10 | 2 | | 24 | 4 | +------+-----+ Update Values in the value column are produced from calculations on the report-side so I cannot find the rank using a query.

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• find decimal in a given number

  - by chandu

  Hi, How can i find decimal(dot) in a given number in java. I am getting input from user, he may give integer or float value. I need to find he entered integer or float , is it possible? if yes could u tell me please. -- Thanks

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• Find declaration and definition of function using bash

  - by Werner

  Hi, I am having a look af a big C++ project with more than 100 files. Given a certain function name, how can one find just using bash tools like find or grep, the declaration and the defintion of a function? Thanks

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• ReSharper: find derived types constructor usages points

  - by Roman

  I have some base class ControlBase and many derived classes which also have derived classes... ControlBase and derived classes have parameterless constructor. How can I easily find all derived classes constructor invocation points? ReSharper find usages on ControlBase constructor shows only usages of this base class constructor but not derived classes constructors. Thanks.

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• Algorithm to find 'maximal' indipendent set in a simple graph

  - by none

  Hi, in words, can someone post directions towards finding the 'maximal' independent set in a simple graph? I read up something from ETH site which said one can find such in O(n) by simply picking a random vertex v and than scanning the rest and attempting to find if there's an edge from v to the rest. Thanks

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• OQL - Find certain (sub)-members of a given object

  - by Pentius

  I'm analyzing heap dumps in a Portal App. With the help of OQL I found the MemorySessionData Object with its address. Now I want to find all SerializableViewState Objects, that are hold by Objects hold by this MemorySessionData object. In other words: My MemorySessionData Object holds several objects, these hold objects again and so on... I want to find all SerializableViewState Objects in this tree. How would the OQL look like? :-/

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• How can I tell Emacs find-file not to collapse paths with '//'

  - by mmccoo

  In Emacs find-file, if I give it a file like /a/b//c/d It complains that it's can't find file /c/d How can I get emacs to behave more like csh? Ie //+ should be treated the same as / instead of as a marker to start a fresh/new path.

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• where to find Microsoft.SqlServer.Dts.Pipeline

  - by CoffeeAddict

  I'm opening a 2005 SSIS pakage and also an old C# project..both are in this solution here. I'm missing namespaces and I can't find the assemblies to add back to my references folder for my C# Project Microsoft.SqlServer.Dts.Pipeline for example is not one I find in the list of references in the .NET references tab. So how the hell do I get these SQL Server assemblies? Do I have to install the SQL Server 2008 sdk? Lost.

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• How to find a difference between normal text and the Json encoded text

  - by sganesh

  I have used JSON::Any package in my program to transfer the hash between client and server. I faced one problem, I want to find whether the text ( sent by client ) is normal text or JSON encoded text. Can anyone please tell me how to find, without checking, I got some error in server side and it is closed.

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• Find most significant bit (left-most) that is set in a bit array

  - by Claudiu

  I have a bit array implementation where the 0th index is the MSB of the first byte in an array, the 8th index is the MSB of the second byte, etc... What's a fast way to find the first bit that is set in this bit array? All the related solutions I have looked up find the first least significant bit, but I need the first most significant one. So, given 0x00A1, I want 9.

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• best way to find out type

  - by laspal

  hi, I have a dict val_dict - {'val1': 'abcd', 'val': '1234', 'val3': '1234.00', 'val4': '1abcd 2gfff'} All the values to my keys are string. So my question is how to find out type for my values in the dict. I mean if i say`int(val_dict['val1']) will give me error. Basically what I am trying to do is find out if the string is actual string or int or float.` if int( val_dict['val1'): dosomething else if float(val_dict['val1']): dosomething thanks

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