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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array

... // original array won't be modified) let results = []; for (let i = 0; i < sorted_arr.length - 1; i++) { if (sorted_arr[i + 1] == sorted_arr[i]) { results.push(sorted_arr[i]); } } return results; } let duplicatedArray = [9, 9, 111, 2, 3, 4, 4, 5, 7]; console.log...
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What do I use for a max-heap implementation in Python?

... way is to invert the value of the keys and use heapq. For example, turn 1000.0 into -1000.0 and 5.0 into -5.0. share | improve this answer | follow | ...
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What should I use Android AccountManager for?

... | edited May 23 '17 at 10:31 Community♦ 111 silver badge answered Dec 23 '11 at 10:07 ...
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Rspec doesn't see my model Class. uninitialized constant error

... Erik Escobedo 2,6152020 silver badges4040 bronze badges answered Jul 7 '13 at 1:53 gmacdougallgmacdougall ...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

... There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are still in...
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Proper practice for subclassing UIView?

... 300 Apple defined pretty clearly how to subclass UIView in the doc. Check out the list below, espe...
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Find value in an array

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How does lucene index documents?

... There's a fairly good article here: https://web.archive.org/web/20130904073403/http://www.ibm.com/developerworks/library/wa-lucene/ Edit 12/2014: Updated to an archived version due to the original being deleted, probably the best more recent alternative is http://lucene.apache.org/core/3_...
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How to get the Android device's primary e-mail address

... 750 +100 There ar...
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Java naming convention for static final variables [duplicate]

...nym as a name prefix, as in: interface ProcessStates { int PS_RUNNING = 0; int PS_SUSPENDED = 1; } Obscuring involving constant names is rare: Constant names normally have no lowercase letters, so they will not normally obscure names of packages or types, nor will they normally s...