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Execution time of C program
...Windows machines (from the Win98 era) it was closer to 60ms.
clock() is standard C; it works "everywhere". There are system-specific functions, such as getrusage() on Unix-like systems.
Java's System.currentTimeMillis() does not measure the same thing. It is a "wall clock": it can help you measure...
Update multiple columns in SQL
...
The "tiresome way" is standard SQL and how mainstream RDBMS do it.
With a 100+ columns, you mostly likely have a design problem... also, there are mitigating methods in client tools (eg generation UPDATE statements) or by using ORMs
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Event for Handling the Focus of the EditText
...n top of class:
EditText myEditText;
Find EditText in onCreate Function and setOnFocusChangeListener of EditText:
myEditText = findViewById(R.id.yourEditTextNameInxml);
myEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusC...
Weird behavior with objects & console.log [duplicate]
...ronously, but does not display the properties of the object until it is expanded (in some cases, depending on the browser and whether you have dev tools open when the log happens). If the object has been modified before examining it in the console, the data shown will have the updated values.
For e...
Is there a Python Library that contains a list of all the ascii characters?
...but from 0 to 127 codes, that is not only letters.
– Andrey
May 5 '11 at 0:48
4
string.ascii_lett...
Stop “developer tools access needs to take control of another process for debugging to continue” ale
I recently upgraded to 10.7.3, and when I try to debug my iOS project in the simulator for the first time after logging in, I'm prompted with the following two alerts:
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Operational Transformation library?
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I think that parts of Google Wave's OT implementation are Open Source (and more parts are coming).
I'm not sure if this is what you are looking for, but an alternative to OT is Differential Synchronization:
Google-Diff-Match-Patch - Diff, Match and Patch libraries for Plain Text: "The Diff Ma...
数据结构、算法复杂度一览表 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...ter
界限
growth
性能
(theta) Θ
upper and lower, tight
equal
= n
(big-oh) O
upper, tightness unknown
less than or equal
≤ n
(small-oh) o
upper, not tight
less than
< n
(big omega) Ω
lower, tightness unknown
gre...
Does pandas iterrows have performance issues?
I have noticed very poor performance when using iterrows from pandas.
6 Answers
6
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
I'm adding TextViews programmatically in a for-loop and add them to an ArrayList.
14 Answers
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