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Counting inversions in an array
... find all inversion pairs such that A[i] > A[j] . I'm using merge sort and copying array A to array B and then comparing the two arrays, but I'm having a difficult time seeing how I can use this to find the number of inversions. Any hints or help would be greatly appreciated.
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C# Set collection?
...set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order...
The capacity of a HashSet(Of T) object is the number of elements that the object can hold. A HashSet(Of T) object's capacity automatically increases as elements are ad...
How do I tar a directory of files and folders without including the directory itself?
...he job in one line. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my experiment:
$ mkdir my_directory
$ touch my_directory/file1
$ touch my_directory/file2
$ touch my_directory/.hiddenfile1
$ touch my_directory/.hiddenfile2...
JavaScript equivalent of PHP's in_array()
Is there a way in JavaScript to compare values from one array and see if it is in another array?
20 Answers
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Map vs Object in JavaScript
I just discovered chromestatus.com and, after losing several hours of my day, found this feature entry :
12 Answers
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C Macro definition to determine big endian or little endian machine?
... edited Mar 29 '18 at 22:02
Alexander Stohr
1171010 bronze badges
answered Jan 20 '10 at 16:39
ChristophChrist...
How Can I Browse/View The Values Stored in Redis [closed]
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Windows and OS X binaries now require a subscription.
– Somantra
Dec 18 '18 at 17:55
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Serialize form data to JSON [duplicate]
...the same name. You should check if indexed_array[n['name']] already exists and if it convert it to array and add the n['value'] there. Of course you also need to check if indexed_array[n['name']] is already an array.
– Strix
May 22 '13 at 22:13
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Why would anyone use set instead of unordered_set?
C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
an htop-like tool to display disk activity in linux [closed]
I am looking for a Linux command-line tool that would report the disk IO activity. Something similar to htop would be really cool. Has someone heard of something like that?
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