duplicate-removal

Suppose I have a class Event, and it has 2 properties: action (NSString) and date (NSDate). And suppose I have an array of Event objects. The problem is that "date" properties can match. I need to remove the duplicates, meaning that 2 different objects with the same date IS a duplicate. I can remove duplicates in any array of strings or nsdates, they are easy to compare. But how to do it with complex objects, where their properties are to be compared? Don't ask me what I did so far, cos' the only thing coming in my mind is a bubble sort, but it's a newbie solution, and slow . Quite any help is

How can I merge two columns of data from two different sheets into one column on a third sheet without duplicates? For Example: Sheet 1 ID 1 2 3 and Sheet 2 ID 1 6 7 3 become Sheet 3 1 2 3 6 7 It's possible to do it by an extension of the usual formula for listing unique values which would be =INDEX(Sheet1!$A$2:$A$4, MATCH(0, COUNTIF($a$1:a1, Sheet1!$A$2:$A$4), 0)) for the first list and =INDEX(Sheet2!$A$2:$A$5, MATCH(0, COUNTIF($a$1:a1, Sheet2!$A$2:$A$5), 0)) for the second list In pseudo-code If at end of first list If at end of second list Show nothing Else Show next item from second list

I use the following expression in Notepad++ to delete duplicate lines: ^(.*)(\r?\n\1)+$ The problems are: It is only for single word lines, if there is space in a line it won't work. It is only for consecutive duplicate lines. Is there a solution (preferably regular expression or macro) to delete duplicate lines in a text that contains space, and that are nonconsecutive? Since no one is interested, I will post what I think you need. delete duplicate lines in a text that contains space, and that are nonconsecutive I assume you have text having, say duplicate lines My Line One and some text and

I need to remove semi duplicate records from the following table ID PID SCORE 1 1 50 2 33 20 3 1 90 4 5 55 5 7 11 6 22 34 For any duplicate PID's that exist I want to remove the lowest scoring record. In the example above ID 1 would be remove. I'm trying to come up with a way of doing this without using loops but am really struggling. Any help would be appreciated. Thanks DELETE t.* FROM Table1 t JOIN (SELECT pid, MIN(score) minScore, MAX(id) maxId FROM Table1 GROUP BY pid) t1 ON t.pid = t1.pid AND t.score = t1.minScore AND t.id < t1.maxId WITH q AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY

I've tried all sorts of PHP logic and PHP's built in functions to remove duplicate values but it is not working no errors shows up but all my JQuery and CSS doesn't work if use array_unique() in_array() to remove the duplicate objects in my array this is how i am creating my person_row_array inside a while loop: $person_row = Person::findByID($pi_claimant_row->person_id); $person_row_array[] = $person_row; object print_r is below: Array ( [0] => stdClass Object ( [id] => 12 [flat_no] => [house_no] => * [street] => [town] => [postcode] => * [county] => ) [1] => stdClass Object ( [id] => 14

i'm scanning wifi info using NSMutableArray, but there are few duplicate values appear, so i try to use following code but still getting the duplicate values, if([scan_networks count] > 0) { NSArray *uniqueNetwork = [[NSMutableArray alloc] initWithArray:[[NSSet setWithArray:scan_networks] allObjects]]; [scan_networks removeAllObjects]; NSSortDescriptor *networkName = [[[NSSortDescriptor alloc] initWithKey:@"SSID_STR" ascending:YES] autorelease]; NSArray *descriptors = [NSArray arrayWithObjects:networkName,nil]; [scan_networks addObjectsFromArray:[uniqueNetwork sortedArrayUsingDescriptors

I am trying to remove duplicates from a linked list, and encountered a problem, which is probably obvious and straightforward but I haven't used C++ in many years and I couldn't find out what I am doing wrong by reading similar questions on SO. Below is parts of my code. I removed irrelevant parts (eg. constructors, other methods, etc). template<class T> class Node { Node() : data(NULL), next(NULL), prev(NULL) {} explicit Node(T d) : data(d), next(NULL), prev(NULL) {} explicit Node(T d, Node<T> *nxt, Node<T> *prv) : data(d), next(nxt), prev(prv) {} ~Node() { delete next; delete prev; } T data;