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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...
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...
Drawing a connecting line between two elements [closed]
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edited Nov 5 '18 at 20:59
balupton
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an...
Is a one column table good design? [closed]
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+1: The table is a set of values that happen to be primitive types of your RDBMS.
– S.Lott
Jun 7 '09 at 1:57
4
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Get img thumbnails from Vimeo?
...;thumbnail_small>http://ts.vimeo.com.s3.amazonaws.com/235/662/23566238_100.jpg</thumbnail_small>
<thumbnail_medium>http://ts.vimeo.com.s3.amazonaws.com/235/662/23566238_200.jpg</thumbnail_medium>
<thumbnail_large>http://ts.vimeo.com.s3.amazonaws.com/235/6...
the source file is different from when the module was built
...click the website which uses your DLLs. On the right window click Advanced Settings and go to path of the Physical Path folder on File Explorer and be sure that you are using this folder to replace your DLLs.
share
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What are the Ruby Gotchas a newbie should be warned about? [closed]
...s.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax.
Boolean evaluation of non-boolean data is strict: 0, "" and [] are all evaluated to true. In ...
Spring JPA selecting specific columns
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You can set nativeQuery = true in the @Query annotation from a Repository class like this:
public static final String FIND_PROJECTS = "SELECT projectId, projectName FROM projects";
@Query(value = FIND_PROJECTS, nativeQuery = true)
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Get first key in a (possibly) associative array?
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2019 Update
Starting from PHP 7.3, there is a new built in function called array_key_first() which will retrieve the first key from the given array without resetting the internal pointer. Check out the documentation for more ...
How do I return to an older version of our code in Subversion?
...ect with a friend and I want to return to an older version of our code and set it to be the current. How do I do it?
14 Ans...