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What is dynamic programming? [closed]
...t is. If not, you use the data in your table to give yourself a stepping stone towards the answer.
The Cormen Algorithms book has a great chapter about dynamic programming. AND it's free on Google Books! Check it out here.
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Can I split an already split hunk with git?
...er_distributor + label {
... and delete the the following line, i.e. the one that begins with +. If you then save and exit your editor, just the removal of the CSS comment will be staged.
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How to embed a video into GitHub README.md?
... links seem to be broken; they take me to github.com/contact now. Does anyone have access to an archived version? I'm having a hard time getting it out of the Google Cache or the Wayback Machine.
– Benjamin Oakes
May 2 '12 at 12:45
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random.seed(): What does it do?
...random.randint()') which generates these values on the basis of this seed. One of the must properties of random numbers is that they should be reproducible. When you put same seed, you get the same pattern of random numbers. This way you are generating them right from the start. You give a different...
For each row return the column name of the largest value
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One option using your data (for future reference, use set.seed() to make examples using sample reproducible):
DF <- data.frame(V1=c(2,8,1),V2=c(7,3,5),V3=c(9,6,4))
colnames(DF)[apply(DF,1,which.max)]
[1] "V3" "V1" "V2"
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How can I remove specific rules from iptables?
... table (eg nat), you have to add it to the delete command (thx to @ThorSummoner for the comment)
sudo iptables -t nat -D PREROUTING 1
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What are the best practices to follow when declaring an array in Javascript?
...t
Note that there's no way with new Array() to create an array with just one pre-specified number element in it!
Using [] is actually more efficient, and safer too! It's possible to overwrite the Array constructor and make it do odd things, but you can't overwrite the behaviour of [].
Personall...
How to fire AJAX request Periodically?
...setInterval(). If the first request hasn't completed and you start another one, you could end up in a situation where you have multiple requests that consume shared resources and starve each other. You can avoid this problem by waiting to schedule the next request until the last one has completed:
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Is it safe to parse a /proc/ file?
...onsistent snapshot.
For example:
/proc/uptime is totally atomic, as someone mentioned in another answer -- but only since Linux 2.6.30, which is less than two years old. So even this tiny, trivial file was subject to a race condition until then, and still is in most enterprise kernels. See fs/p...
Fast ceiling of an integer division in C / C++
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The second one has a problem where x is 0. ceil(0/y) = 0 but it returns 1.
– Omry Yadan
May 27 '13 at 0:52
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