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design a stack such that getMinimum( ) should be O(1)
...s still the same complexity.)
EDIT: There's a variation which is slightly more fiddly, but has better space in general. We still have the min stack, but we only pop from it when the value we pop from the main stack is equal to the one on the min stack. We only push to the min stack when the value b...
How do I remove the old history from a git repository?
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I agree, explaining what a graft is would be more than useful
– Charles Martin
Jul 23 '14 at 7:57
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How to make a class JSON serializable
...'
In that case you can merely call json.dumps(f.__dict__).
If you want more customized output then you will have to subclass JSONEncoder and implement your own custom serialization.
For a trivial example, see below.
>>> from json import JSONEncoder
>>> class MyEncoder(JSONEn...
What is a stack trace, and how can I use it to debug my application errors?
... at com.example.myproject.Author.getBookIds(Author.java:36)
... 1 more
What's different about this one is the "Caused by". Sometimes exceptions will have multiple "Caused by" sections. For these, you typically want to find the "root cause", which will be one of the lowest "Caused by" sect...
Selecting all text in HTML text input when clicked
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To make that more general, you could use this.id as the argument for the click handler. Better yet, you could eliminate the getElementById entirely and pass this as an argument.
– Asad Saeeduddin
Dec...
Fastest way to tell if two files have the same contents in Unix/Linux?
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How can I add more commands than only one? I want to copy a file and roboot.
– feedc0de
Jun 14 '14 at 15:09
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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]
... to cut down on length much), but at the syntax level there isn't anything more succinct available.
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How is the fork/join framework better than a thread pool?
...ing the fork/join abstraction simplifies the problem or makes the solution more efficient from what we've had for years now.
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Static/Dynamic vs Strong/Weak
...o an implicit conversion from strings to numbers).
See the wiki-page for more detailed information.
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What is aria-label and how should I use it?
...ud to the user, taking cues from the HTML (e.g. an h1 should be emphasised more than a p, a is clearly a link, form` indicates somewhere to enter information, aria-* attributes give further clues to what the elements do, etc).
– Olly Hodgson
Feb 26 '14 at 13:0...