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Data structure: insert, remove, contains, get random element, all at O(1)
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Consider a data structure composed of a hashtable H and an array A. The hashtable keys are the elements in the data structure, and the values are their positions in the array.
insert(value): append the value to array and let i be its index in A. Set H[value]=i.
remove(value)...
nodejs get file name from absolute path?
...ered May 24 '18 at 6:24
Rubin bhandariRubin bhandari
1,05499 silver badges1515 bronze badges
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Does Eclipse have line-wrap
I'm editing an XML file with the Eclipse IDE and need to input paragraphs of text. It doesn't seem that eclipse has a line-wrap feature though. Anyone knows if it does or if there's a plugin for that?
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
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not until CSS selectors level 4 is accepted and implemented by browsers, where you will have access to :nth-match(selector) and :nth-last-match(selector). See w3.org/TR/selectors4 for more detail.
– Chris
Feb 9 '15 at 22:55
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How to retrieve the current value of an oracle sequence without increment it?
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FROM all_sequences
WHERE sequence_owner = '<sequence owner>'
AND sequence_name = '<sequence_name>';
You can get a variety of sequence metadata from user_sequences, all_sequences and dba_sequences.
These views work across sessions.
EDIT:
If the sequence is in your default sch...
How can I limit a “Run Script” build phase to my release configuration?
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I have 'Debug', 'Release' (for Instruments), 'Ad Hoc' and 'App Store' configs (with different code signing), so I changed it for if [ "${CONFIGURATION}" != "Debug" ]; then....
– Nicolas Miari
Mar 14 '14 at 1:32
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Is it safe to delete a NULL pointer?
...elete performs the check anyway, so checking it on your side adds overhead and looks uglier. A very good practice is setting the pointer to NULL after delete (helps avoiding double deletion and other similar memory corruption problems).
I'd also love if delete by default was setting the parameter t...
JQuery to check for duplicate ids in a DOM
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hehe and i switched console.warn to alert(...) so i HAVE to fix them :)
– Simon_Weaver
Feb 4 '09 at 3:57
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How to export iTerm2 Profiles
I needed to reformat my computer and now I'm having trouble copying the settings/profiles over.
6 Answers
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Style child element when hover on parent
...answered Aug 27 '11 at 21:16
jtbandesjtbandes
101k3232 gold badges209209 silver badges237237 bronze badges
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