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  • Sort list using stl sort function

    - by Vlad
    I'm trying to sort a list (part of a class) in descending containg items of a struct but it doesn't compile(error: no match for 'operator-' in '__last - __first'): sort(Result.poly.begin(), Result.poly.end(), SortDescending()); And here's SortDescending: struct SortDescending { bool operator()(const term& t1, const term& t2) { return t2.pow < t1.pow; } }; Can anyone tell me what's wrong? Thanks!

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  • build a Database from Ms Word list information...

    - by Jayron Soares
    Please someone can advise me how to approach a given problem: I have a sequential list of metadata in a document in MS Word. The basic idea is create a python algorithm to iterate over of the information, retrieving just the name of PROCESS, when is made a queue, from a database. for example. Process: Process Walker (1965) Exact reference: Walker Process Equipment., nc. v. Food Machinery Corp.. Link: http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=US&vol=382&invol= Type of procedure: Certiorari To The United States Court of Appeals for the SeventhCircuit. Parties: Walker Process Equipment, Inc. Sector: Systems is … Start Date: October 12-13 Arguedas, 1965 Summary: Food Machinery Company has initiated a process to stop or slow the entry of competitors through the use of a patent obtained by fraud. The case concerned a patenton "knee ction swing diffusers" used in aeration equipment for sewage treatment systems, and the question was whether "the maintenance and enforcement of a patent obtained by fraud before the patent office" may be a basis for antitrust punishment. Report of the evolution process: petitioner, in answer to respond .. Importance: a) First case which established an analysis for the diagnosis of dispute… There are about 200 pages containing the information above. I have in mind the idea of creating an algorithm in python to be able to break this information sequenced and try to store them in a web database[open source application that I’m looking for] in order to allow for free consultations ...

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  • Use of Distinct with list of Custom Object

    - by Burnzy
    How can I make the Distinct() method work with a list of custom object(Href in this case), here is what the current object looks like: public class Href : IComparable, IComparer<Href> { public Uri URL { get; set; } public UrlType URLType { get; set; } public Href(Uri url, UrlType urltype) { URL = url; URLType = urltype; } #region IComparable Members public int CompareTo( object obj ) { if(obj is Href) { return URL.ToString().CompareTo( ( obj as Href ).URL.ToString() ); } else throw new ArgumentException("Wrong data type."); } #endregion #region IComparer<Href> Members int IComparer<Href>.Compare( Href x , Href y ) { return string.Compare( x.URL.ToString() , y.URL.ToString() ); } #endregion }

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  • Some SharePoint NDA Information

    - by Sahil Malik
    Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). Many years ago, at the last to last to last MVP summit, Microsoft was kind enough to share with us what they were thinking wayyyyyyyyyyyy ahead! I specially remember John Durant talking about the specific enhancements planned for SharePoint 2010 development experience. If you haven’t seen John Durant talking on stage, the guy has more enthusiasm than tiger woods in Amsterdam! The energy of his presentations is simply amazing. So, I pulled out my phone, and I snapped a picture! And, I emailed that picture to everyone in the MVP land, and Microsoft land, saying “We have evidence”, i.e. here are the promises that were made, and dammit we’ll see by the time you release SP2010 how many of these do you actually release. Here is the picture ladies and gentlemen -     It’s a good karate chop action shot isn’t it? Of course, we were all immediately warned not to share any of this seriously strictly NDA information at the time. Well, now that the information is out in the world, I can finally share now, this small tidbit of how far ahead Microsoft is thinking in their plans. Frankly, I wouldn’t be surprised, if today that they have a very clear idea what SharePoint vNext will be all about, or should I say vNextvNext? Have fun! Comment on the article ....

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  • Throw exception from initializer list

    - by aaa
    hello. what is the best way to throw exception from initializer list? for example: class C { T0 t0; // can be either valid or invalid, but does not throw directly T1 t1; // heavy object, do not construct if t0 is invalid, by throwing before C(int n) : t0(n), // throw exception if t0(n) is not valid t1() {} }; I thought maybe making wrapper, e.g. t0(throw_if_invalid(n)). What is the practice to handle such cases? Thanks

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  • Algorithm to create a linked list from a set of nodes

    - by user320587
    Hi, I am looking for an algorithm to create a linked list from a set of nodes. For example, let's assume a node is an airline ticket from a source point to destination. (e.g., Chicago to Detroit) and there are several airline tickets. Assuming all these airline tickets are jumbled, what is the best way to determine the entire journey path. If there are 5 airline tickets like Chicago-Detroit, Denver-Chicago, Detroit-DC, DC-New York, San Jose-Denver, the algorithm should be able to come up with the correct start to end path. San Jose - Denver - Chicago - Detroit - DC - New York

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  • Help with PHP recursive navigation list menu

    - by Jason
    Hi all, I am trying to add a dynamic recursive navigation list menu to a site of am working on. The scenerio is that the menu has 2 levels related by a parentid(preid). My issue is that I can display the 1st level list correctly, however I cannot get the second level to display properly. I am not sure where to add the UL and /UL tags for the second level. This is what I am after <ul> <li>Item 1</li> <li>item 2</li> <li>item 3</li> <ul> <li>sub item 1</li> <li>sub item 2</li> </ul> <li>Item 4</li> <li>item 5</li> <ul> <li>sub item 1</li> <li>sub item 2</li> </ul> <li>item 6</li> </ul> This is actually what i am getting with the below code: <ul> <li>item 1 <ul> </ul> </li> <li>item 2 <ul> <li>sub item 1</li> <ul> </ul> <li>sub item 2</li> <ul> </ul> </ul> </li> <li>Sports Injuries <ul> </ul> </li> </ul> </li> </ul> Below is the class file I am using to create the menu: class Dynamic_Menu { function getConfig() { $this->DB_SERVER = 'localhost'; $this->DB_USER = '***'; $this->DB_PASS = '***'; $this->DB_NAME = '***'; } function __construct() { $this->getConfig(); $Conn = mysql_connect($this->DB_SERVER, $this->DB_USER, $this->DB_PASS); if (!$Conn) die("Error: ".mysql_errno($Conn).":- ".mysql_error($Conn)); $DB_select = mysql_select_db($this->DB_NAME, $Conn); if (!$DB_select) die("Error: ".mysql_errno($Conn).":- ".mysql_error($Conn)); } function select_row($sql) { //echo $sql . "<br />"; if ($sql!="") { $result = mysql_query($sql) or die("Error: ".mysql_errno().":- ".mysql_error()); if ($result) { while($row = mysql_fetch_array($result)) $data[] = $row; } return $data; } } function recordCount($sql) { if ($sql!="") { $result = mysql_query($sql) or die("Error: ".mysql_errno().":- ".mysql_error()); if ($result) { $cnt = mysql_num_rows($result); return $cnt; } } } function getChild($id) { $menu = ""; $str = ""; $s = "SELECT * FROM vcms_sys_explorer WHERE preid = '$id' "; $res = $this->select_row($s); $menu .= '<ul>'; for ($i=0;$i<count($res);$i++) { $cnt_of_child = $this->recordCount("SELECT * FROM vcms_sys_explorer where preid = '".$res[$i][eid]."' "); //if ($cnt_of_child > 0) // $str = ''; //else // $str = " (is sub menu item)"; $menu .= '<li>'. $res[$i][name].$str.'</li>'; $menu .= $this->getChild($res[$i][eid]); } $menu .= '</ul>'; return $menu; } function getMenu($parentid) { $menu = ""; $s = "SELECT * FROM vcms_sys_explorer WHERE preid = '$parentid' "; $res = $this->select_row($s); $menu .= '<ul>'; for ($i=0;$i<count($res);$i++) { $menu .= '<li>'.$res[$i][name].$this->getChild($res[$i][eid]).'</li>'; if ((count($res) - 1) > $i) { } } $menu .= '</ul>'; return $menu; } } I call the menu with: $menu = new Dynamic_Menu(); $menu->getMenu(1); Could someone please help and explain where I need to place the level 2 UL and /UL tags. I have been banging my head with this for the last 2 days. Any help would be greatly appreciated, thanks...

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  • Convert From Custom List to List of String

    - by Paul Johnson
    Hi all I have the following code: Public Shared Function ConvertToString(ByVal list As IList) As String Dim strBuilder = New System.Text.StringBuilder() Dim item As Object For Each item In list strBuilder.Append(obj.ToString()) strBuilder.Append(",") Next Return strBuilder.ToString(strBuilder.Length - 1) End Function The intention is to convert an IList of custom objects to a string equivalent comprising each element in the Ilist. Unfortunately I can't seem to find a way to get the underlying data of the custom object, and of course as in the above example, using object simply gives me a string of types definitions, rather than access to the underlying data. Any assistance much appreciated. Paul.

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  • transform List<XElement> to List<XElement.Value>

    - by Miau
    I have a result of a xlinq that is an enumerable with id and phones, I want to transform that to a Dictionary, that part is simple, however the part of transforming the phone numbers from a XElement to a string its proving hard xLinqQuery.ToDictionary(e => e.id, e => e.phones.ToList()); will return Dictionary<int, List<XElement>> what i want is a Dictionary<int, List<String>> I tried with e.phones.ToList().ForEach(...) some strange SelectMany, etc ot no avail Thanks

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  • C++, throw exception from initializer list

    - by aaa
    hello. what is the best way to throw exception from initializer list? for example: class C { T0 t0; // can be either valid or invalid, but does not throw directly T1 t1; // heavy object, do not construct if t0 is invalid, by throwing before C(int n) : t0(n), // throw exception if t0(n) is not valid t1() {} }; I thought maybe making wrapper, e.g. t0(throw_if_invalid(n)). What is the practice to handle such cases? Thanks

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  • Adjacency List Tree Using Recursive WITH (Postgres 8.4) instead of Nested Set

    - by Koobz
    I'm looking for a Django tree library and doing my best to avoid Nested Sets (they're a nightmare to maintain). The cons of the adjacency list model have always been an inability to fetch descendants without resorting to multiple queries. The WITH clause in Postgres seems like a solid solution to this problem. Has anyone seen any performance reports regarding WITH vs. Nested Set? I assume the Nested set will still be faster but as long as they're in the same complexity class, I could swallow a 2x performance discrepancy. Django-Treebeard interests me. Does anyone know if they've implemented the WITH clause when running under Postgres? Has anyone here made the switch away from Nested Sets in light of the WITH clause?

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  • need to print 5 column list in alpha order, vertically

    - by Brad
    Have a webpage that will be viewed by mainly IE users, so CSS3 is out of the question. I want it to list like: A D G B E H C F I Here is the function that currently lists like: A B C D E F G H I function listPhoneExtensions($group,$group_title) { $adldap = new adLDAP(); $group_membership = $adldap->group_members(strtoupper($group),FALSE); sort($group_membership); print " <a name=\"".strtolower($group_title)."\"></a> <h2>".$group_title."</h2> <ul class=\"phone-extensions\">"; foreach ($group_membership as $i => $username) { $userinfo = $adldap->user_info($username, array("givenname","sn","telephonenumber")); $displayname = "<span class=\"name\">".substr($userinfo[0]["sn"][0],0,9).", ".substr($userinfo[0]["givenname"][0],0,9)."</span><span class=\"ext\">".$userinfo[0]["telephonenumber"][0]."</span>"; if($userinfo[0]["sn"][0] != "" && $userinfo[0]["givenname"][0] != "" && $userinfo[0]["telephonenumber"][0] != "") { print "<li>".$displayname."</li>"; } } print "</ul><p class=\"clear-both\"><a href=\"#top\" class=\"link-to-top\">&uarr; top</a></p>"; } Example rendered html: <ul class="phone-extensions"> <li><span class="name">Barry Bonds</span><span class="ext">8281</span></li> <li><span class="name">Gerald Clark</span><span class="ext">8211</span></li> <li><span class="name">Juan Dixon</span><span class="ext">8282</span></li> <li><span class="name">Omar Ebbs</span><span class="ext">8252</span></li> <li><span class="name">Freddie Flank</span><span class="ext">2281</span></li> <li><span class="name">Jerry Gilmore</span><span class="ext">4231</span></li> <li><span class="name">Kim Moore</span><span class="ext">5767</span></li> <li><span class="name">Barry Bonds</span><span class="ext">8281</span></li> <li><span class="name">Gerald Clark</span><span class="ext">8211</span></li> <li><span class="name">Juan Dixon</span><span class="ext">8282</span></li> <li><span class="name">Omar Ebbs</span><span class="ext">8252</span></li> <li><span class="name">Freddie Flank</span><span class="ext">2281</span></li> <li><span class="name">Jerry Gilmore</span><span class="ext">4231</span></li> <li><span class="name">Kim Moore</span><span class="ext">5767</span></li> <li><span class="name">Barry Bonds</span><span class="ext">8281</span></li> <li><span class="name">Gerald Clark</span><span class="ext">8211</span></li> <li><span class="name">Juan Dixon</span><span class="ext">8282</span></li> <li><span class="name">Omar Ebbs</span><span class="ext">8252</span></li> <li><span class="name">Freddie Flank</span><span class="ext">2281</span></li> <li><span class="name">Jerry Gilmore</span><span class="ext">4231</span></li> <li><span class="name">Kim Moore</span><span class="ext">5767</span></li> </ul> Any help is appreciated to getting it to list alpha vertically.

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  • pythonic way to associate list elements with their indices

    - by Dragan Chupacabrovic
    Hello Everybody, I have a list of values and I want to put them in a dictionary that would map each value to it's index. I can do it this way: >>> t = (5,6,7) >>> d = dict(zip(t, range(len(t)))) >>> d {5: 0, 6: 1, 7: 2} this is not bad, but I'm looking for something more elegant. I've come across the following, but it does the opposite of what I need: >>> d = dict(enumerate(t)) >>> d {0: 5, 1: 6, 2: 7} Please share your solutions, Thank you

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  • Java: Print and access List <String[]>

    - by battousai622
    Im reading in a file and storing it in t1. How do i access the elements in t1? When i try to print it i get addresses instead of values. Also whats the dif between string and string[]? CSVReader reader = new CSVReader(new FileReader("src/new_acquisitions.csv")); List <String[]> t1 = reader.readAll(); int i = 0 while(i < t1.size()) { System.out.println(t1.get(i)); i++; } output: [Ljava.lang.String;@9304b1 [Ljava.lang.String;@190d11 [Ljava.lang.String;@a90653 [Ljava.lang.String;@de6ced

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  • How do I copy only the values and not the references from a Python list?

    - by wrongusername
    Specifically, I want to create a backup of a list, then make some changes to that list, append all the changes to a third list, but then reset the first list with the backup before making further changes, etc, until I'm finished making changes and want to copy back all the content in the third list to the first one. Unfortunately, it seems that whenever I make changes to the first list in another function, the backup gets changed also. Using original = backup didn't work too well; nor did using def setEqual(restore, backup): restore = [] for number in backup: restore.append(number) solve my problem; even though I successfully restored the list from the backup, the backup nevertheless changed whenever I changed the original list. How would I go about solving this problem?

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  • Problem with list activity

    - by vikram deshpande
    I have implmented pagination and it display 5 records per page. Now suppose I am on page 3 and click 3'rd element then 3'rd element of page-1 is selected. I am not able to figure out problem as I always create new list object while setting data. I used below code temp = new ArrayList(); this.someListAdapter = new SomeListAdapter(this, R.layout.row_facet,temp); setListAdapter(this.someListAdapter ); Below is signature of SomeListAdapter class. public class SomeListAdapter extends ArrayAdapter<VoNeighborhood> { } Please help....

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  • How to "cast" from generic List<> to ArrayList

    - by Michael Freidgeim
    We are writing new code using generic List<> , e.g. List<MyClass>.   However we have legacy functions, that are expect ArrayList as a parameter. It is a second time, when I and my colleague asked, how to "cast" generic List<MyClass> to ArrayList. The answer is simple- just use ArrayList constructor with ICollection parameter. Note that it is not real cast, it  copies  references to ArrayList. var list=new List<MyClass>(); //Fill list items ArrayList al=new ArrayList(list);//"cast"-

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  • Adding Item to DataBound Drop Down List

    - by Stephen
    Yes, I have read most of the topics here, but I can't find an answer that works. I have Three drop-down lists. The first is databound to grab distinct experiment names. The user selects, page posts back, and the second drop-down menu displays distinct time points. This is where I need help. I need to add an item to THAT drop-down list whose ID, DataTextField, DataValueField are all TimePt. Seems simple, but I can't get it to work. protected void Page_Load(object sender, EventArgs e) { if (Page.IsPostBack) { TimePt.DataSource = TimePTDD; TimePt.DataValueField = "TimePt"; TimePt.DataTextField = "TimePt"; TimePt.DataBind(); TimePt.Items.Insert(0, new ListItem("--Select---", "0")); TimePt.SelectedIndex = 0; } } I'm missing sometthing.

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  • How to order a TimeZone list in .NET?

    - by reallyJim
    I have an ASP.NET web application that requires users to select their appropriate time zone so that it can correctly show local times for events. In creating a simple approach for selecting the time zone, I started by just using the values from TimeZoneInfo.GetSystemTimeZones(), and showing that list. The only problem with this is that since our application is primarily targeted at the United States, I'd like to show those entries first, basically starting with Eastern Time and working backwards (West) until I reach Atlantic time. What's a good approach to do this in code?

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  • create a list of threads in C

    - by Hristo
    My implementation (in C) isn't working... the first node is always NULL so I can't free the memory. I'm doing: thread_node_t *thread_list_head = NULL; // done in the beginning of the program ... // later on in the program thread_node_t *thread = (thread_node_t*) malloc(sizeof(thread_node_t)); pthread_create(&(thread->thread), NULL, client_thread, &csFD); thread->next = thread_list_head; thread_list_head = thread; So when I try to free this memory, thread_list_head is NULL. while (thread_list_head != NULL) { thread_node_t *temp = thread_list_head; thread_list_head = thread_list_head->next; free(temp); temp = NULL; } Any advice on how to fix this or just a new way to create this list that would work better? Thanks, Hristo

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  • adding a node to a linked list.

    - by sil3nt
    Hi there, ive been given the following code, And im just wondering, what does *&listpointer mean in the argument of the addnode function? struct Node { int accnumber; float balance; Node *next; }; Node *A, *B; int main() { A = NULL; B = NULL; AddNode(A, 123, 99.87); AddNode(B, 789, 52.64); } void AddNode(Node * & listpointer, int a, float b) { // add a new node to the FRONT of the list Node *temp; temp = new Node; temp->accnumber = a; temp->balance = b; temp->next = listpointer; listpointer = temp; }

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  • SSIS Denali as part of “Enterprise Information Management”

    - by jorg
    When watching the SQL PASS session “What’s Coming Next in SSIS?” of Steve Swartz, the Group Program Manager for the SSIS team, an interesting question came up: Why is SSIS thought of to be BI, when we use it so frequently for other sorts of data problems? The answer of Steve was that he breaks the world of data work into three parts: Process of inputs BI   Enterprise Information Management All the work you have to do when you have a lot of data to make it useful and clean and get it to the right place. This covers master data management, data quality work, data integration and lineage analysis to keep track of where the data came from. All of these are part of Enterprise Information Management. Next, Steve told Microsoft is developing SSIS as part of a large push in all of these areas in the next release of SQL. So SSIS will be, next to a BI tool, part of Enterprise Information Management in the next release of SQL Server. I'm interested in the different ways people use SSIS, I've basically used it for ETL, data migrations and processing inputs. In which ways did you use SSIS?

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  • TStringList, Dynamic Array or Linked List in Delphi?

    - by lkessler
    I have a choice. I have an array of ordered strings that I need to store and access. It looks like I can choose between using: A TStringList A Dynamic Array of strings, and A Linked List of strings In what circumstances is each of these better than the others? Which is best for small lists (under 10 items)? Which is best for large lists (over 1000 items)? Which is best for huge lists (over 1,000,000 items)? Which is best tor minimize memory use? Which is best to minimize loading and/or access time? For reference, I am using Delphi 2009.

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  • Convert args to flat list?

    - by Mark
    I know this is very similar to a few other questions, but I can't quite get this function to work correctly. def flatten(*args): return list(item for iterable in args for item in iterable) The output I'm looking for is: flatten(1) -> [1] flatten(1,[2]) -> [1, 2] flatten([1,[2]]) -> [1, 2] The current function, which I from another SO answer doesn't seem to produce correct results at all: >>> flatten([1,[2]]) [1, [2]] I wrote the following function which seems to work for 0 or 1 levels of nesting, but not deeper: def flatten(*args): output = [] for arg in args: if hasattr(arg, '__iter__'): output += arg else: output += [arg] return output

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  • Webapp: safetly update a shared List/Map in the AppContext

    - by al nik
    I've Lists and Maps in my WebAppContext. Most of the time these are only read by multiple Threads but sometimes there's the need to update or add some data. I'm wondering what's the best way to do this without incurring in a ConcurrentModificationException. I think that using CopyOnWriteArrayList I can achieve what I want in terms of - I do not have to sync on every read operation- I can safety update the list while other threads are reading it. Is this the best solution? What about Maps?

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