大约有 40,000 项符合查询结果（耗时：0.0354秒） [XML]
Throwing the fattest people off of an overloaded airplane.
...y heap!
var myHeap = new MinHeap<Passenger>(/* need comparer here to order by weight */);
foreach (var pass in passengers)
{
if (totalWeight < targetTotal)
{
// unconditionally add this passenger
myHeap.Add(pass);
totalWeight += pass.Weight;
}
else if...
Sorting a tab delimited file
...
sort -k4nr file.txt
to sort file.txt by column 4 numerically in reverse order. (Though the data in the question has even 5 fields so the last field would be index 5.)
share
|
improve this answer
...
Is it possible to for SQL Output clause to return a column not being inserted?
... (ReportOptionID, Field1, Field2)
SELECT Field1, Field2 FROM @Practice ORDER BY PracticeID ASC;
WITH CTE AS ( SELECT PracticeID, ROW_NUMBER() OVER ( ORDER BY PracticeID ASC ) AS ROW FROM @Practice )
UPDATE M SET M.PracticeID = S.PracticeID
FROM @PracticeReportOption AS M
JOIN CTE AS S...
Why do I need to override the equals and hashCode methods in Java?
...it should be stored inside a collection, and the hashcode is used again in order to locate the object
in its collection.
Hashing retrieval is a two-step process:
Find the right bucket (using hashCode())
Search the bucket for the right element (using equals() )
Here is a small example on why we ...
What IDE to use for Python? [closed]
...guage Support -. | | | | | | | | | | .- GUI Designer (Qt, Eric, etc)
Auto Code Completion -. | | | | | | | | | | | | .- Integrated DB Support
Commercial/Free -. | | | | | | | | | | | | | | .- Refactoring
Cross Platform -. | | | | | | | | | ...
Rotating x axis labels in R for barplot
...produce a barplot with qsec colum information
mtcars = mtcars[with(mtcars, order(-qsec)), ] #order mtcars data set by column "qsec"
end_point = 0.5 + nrow(mtcars) + nrow(mtcars) - 1 #this is the line which does the trick (together with barplot "space = 1" parameter)
barplot(mtcars$qsec, col = "gre...
Cron job every three days
... you want it to run on specific days of the month, like the 1st, 4th, 7th, etc... then you can just have a conditional in your script that checks for the current day of the month.
if (((date('j') - 1) % 3))
exit();
or, as @mario points out, you can use date('k') to get the day of the year inst...
How do you search an amazon s3 bucket?
...er and built a tool to help: bucketsearch.net - allows for wildcard search etc
– Jon M
Mar 11 at 21:55
add a comment
|
...
Deleting all pending tasks in celery / rabbitmq
...ee an option to pick a different named queue.
Here's my process:
$ sudo /etc/init.d/celeryd stop # Wait for analytics task to be last one, Ctrl-C
$ ps -ef | grep analytics # Get the PID of the worker, not the root PID reported by celery
$ sudo kill <PID>
$ sudo /etc/init.d/celeryd stop # ...
Mythical man month 10 lines per developer day - how close on large projects? [closed]
...
@mm24 Fourthly, massive performance improvements. F# is orders of magnitude faster than Mathematica and their proof-of-concept code in F# is 5x faster than their production C++ code. This means that tests execute in seconds rather than hours, at which point testing becomes an inte...