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Why is my program slow when looping over exactly 8192 elements?
...for(i=1;i<SIZE-1;i++)
for(j=1;j<SIZE-1;j++) {
res[j][i]=0;
for(k=-1;k<2;k++)
for(l=-1;l<2;l++)
res[j][i] += img[j+l][i+k];
res[j][i] /= 9;
}
First notice that the two inner loops are trivial. They can be unrolled as follows:
f...
Git pull without checkout?
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230
I was looking for the same thing and finally found the answer that worked for me in another stac...
python list by value not by reference [duplicate]
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220
As answered in the official Python FAQ:
b = a[:]
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...
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edited May 9 '14 at 10:53
answered May 9 '14 at 9:54
J...
How can I assign an ID to a view programmatically?
...ns unique:
Here, values/ids.xml defines a custom id:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="reservedNamedId" type="id"/>
</resources>
Then once the ViewGroup or View has been created, you can attach the custom id
myViewGroup.setId(R.id.reserve...
Why is the JVM stack-based and the Dalvik VM register-based?
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edited Apr 29 '10 at 1:18
answered Apr 27 '10 at 7:49
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Setting onClickListener for the Drawable right of an EditText [duplicate]
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107
public class CustomEditText extends EditText {
private Drawable drawableRight;
private...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
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Since PHP/5.4.0, there is an option called JSON_UNESCAPED_UNICODE. Check it out:
https://php.net/function.json-encode
Therefore you should try:
json_encode( $text, JSON_UNESCAPED_UNICODE );
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How many concurrent requests does a single Flask process receive?
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Ryan ArteconaRyan Artecona
5,09933 gold badges1616 silver badges1818 bronze badges
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How do I make a batch file terminate upon encountering an error?
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309
Check the errorlevel in an if statement, and then exit /b (exit the batch file only, not the en...