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What would cause an algorithm to have O(log n) complexity?
...o have that log2 16 = 4. Hmmm... what about 128?
128 / 2 = 64
64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
This took seven steps, and log2 128 = 7. Is this a coincidence? Nope! There's a good reason for this. Suppose that we divide a number n by 2 i times. Then...
Fastest way to extract frames using ffmpeg?
...t='eq(n\,1)+eq(n\,200)+eq(n\,400)+eq(n\,600)+eq(n\,800)+eq(n\,1000)',scale=320:-1 \
-vsync vfr -q:v 2 -f image2pipe -vcodec ppm - \
| montage -tile x1 -geometry "1x1+0+0<" -quality 100 -frame 1 - output.png
.
Little explanation:
In ffmpeg expressions + stands for OR and * for AND
\, is...
Eclipse: Can you format code on save?
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edited Apr 11 '17 at 14:32
M. A. Kishawy
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ans...
IISExpress Log File Location
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answered Apr 27 '11 at 5:32
vikomallvikomall
16.6k66 gold badges4343 silver badges3737 bronze badges
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How to make Scroll From Source feature always enabled?
...schalimartines
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5
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Open a file from Cygwin
...) cmd /c start programThatCrashes.exe Also, programThatCrashes.exe is a Win32 console program that just crashes. Both launch a new console window to run the program. However, the first one (cygstart) causes a crash dialog to appear and allows just-in-time debugging. The second one (cmd /c start) ...
MySQL select with CONCAT condition
...to do so
– gypaetus
Aug 8 '13 at 19:32
1
For a bulky table with many rows, I think it would be un...
How to copy yanked text to VI command prompt
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answered May 25 '09 at 12:32
RookRook
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How do I find out which process is locking a file using .NET?
...sources(uint pSessionHandle,
UInt32 nFiles,
string[] rgsFilenames,
UInt32 nApplications,
[In] RM_UNIQUE_PROCESS[] rgApplications,
...
Getting “unixtime” in Java
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The Java 32-bit int matches 32-bit platforms (and the year 2038 problem). 64-bit platforms use a larger time_t data type. Java dodged that bullet by using a long as the return for System.currentTimeMillis(). If you convert to int, ...