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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
...
If you want examples of Algorithms/Group of Statements with Time complexity as given in the question, here is a small list -
O(1) time
Accessing Array Index (int a = ARR[5];)
Inserting a node in Linked List
Pushing and Pop...
Python: One Try Multiple Except
...ception:
handle_second_one()
except (ThirdException, FourthException, FifthException) as e:
handle_either_of_3rd_4th_or_5th()
except Exception:
handle_all_other_exceptions()
See: http://docs.python.org/tutorial/errors.html
The "as" keyword is used to assign the error to a variable so ...
How can I drop all the tables in a PostgreSQL database?
...njection possibility (and does this really fix one if there is)? [I don't know if Postgres is foolish enough to allow table names to make that possible] If there is, you should really change your comment to an edit in the answer (explaining why in the edit comments).
– Auspex
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How to get overall CPU usage (e.g. 57%) on Linux [closed]
...ll CPU usage in all the cores since the system bootup. This could be very different from the current CPU usage. To get the current value top (or similar tool) must be used.
Current CPU usage can be potentially calculated with:
awk '{u=$2+$4; t=$2+$4+$5; if (NR==1){u1=u; t1=t;} else print ($2+$4-u...
How do I write data into CSV format as string (not file)?
... = StringIO()
self.writer = csv.writer(self.buffer)
def stringify(self, *args):
self.writer.writerow(args)
value = self.buffer.getvalue().strip("\r\n")
self.buffer.seek(0)
self.buffer.truncate(0)
return value + "\n"
example:
csv_formatter = Arg...
How is an HTTP POST request made in node.js?
...
request is now deprecated. It is recommended you use an alternative
In no particular order and dreadfully incomplete:
native HTTP/S, const https = require('https');
node-fetch
axios
got
superagent
bent
make-fetch-happen
unfetch
tiny-js...
iOS 7 TableView like in Settings App on iPad
...l:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([cell respondsToSelector:@selector(tintColor)]) {
if (tableView == self.tableView) {
CGFloat cornerRadius = 5.f;
cell.backgroundColor = UIColor.clearColor;
CAShapeLayer *layer =...
How to copy files from 'assets' folder to sdcard?
...ension
Here is the code (I left the Log statements but you can drop them now):
final static String TARGET_BASE_PATH = "/sdcard/appname/voices/";
private void copyFilesToSdCard() {
copyFileOrDir(""); // copy all files in assets folder in my project
}
private void copyFileOrDir(String path) {...
Cross-Domain Cookies
I have two webapps WebApp1 and WebApp2 in two different domains.
14 Answers
14
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Is it safe to parse a /proc/ file?
... on what property you want. But it's easy to end up with bugs in your code if you assume too much about the consistency of a file in /proc. For example, see this bug which came from assuming that /proc/mounts was a consistent snapshot.
For example:
/proc/uptime is totally atomic, as someone menti...