大约有 44,000 项符合查询结果（耗时：0.0397秒） [XML]
Divide a number by 3 without using *, /, +, -, % operators
...(int argc, char *argv[])
{
int num = 1234567;
int den = 3;
div_t r = div(num,den); // div() is a standard C function.
printf("%d\n", r.quot);
return 0;
}
share
|
improve this ...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
... operator.
if ((unsigned)(number-lower) <= (upper-lower))
in_range(number);
With a typical, modern computer (i.e., anything using twos complement), the conversion to unsigned is really a nop -- just a change in how the same bits are viewed.
Note that in a typical case, you can pre-...
How to find server name of SQL Server Management Studio
...re was an option to create servers as well. Now it's working. Microsft, ¯\_(ツ)_/¯
– adiga
Jan 3 '18 at 7:05
...
How to generate a random string in Ruby
...).chr }.join
I spend too much time golfing.
(0...50).map { ('a'..'z').to_a[rand(26)] }.join
And a last one that's even more confusing, but more flexible and wastes fewer cycles:
o = [('a'..'z'), ('A'..'Z')].map(&:to_a).flatten
string = (0...50).map { o[rand(o.length)] }.join
...
How to pull a random record using Django's ORM?
...
Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from random...
How can I parse a YAML file from a Linux shell script?
...han one level deep.
YAML looks like so:
KEY: value
ANOTHER_KEY: another_value
OH_MY_SO_MANY_KEYS: yet_another_value
LAST_KEY: last_value
Output like-a dis:
KEY="value"
ANOTHER_KEY="another_value"
OH_MY_SO_MANY_KEYS="yet_another_value"
LAST_KEY="last_value"
I ac...
What are POD types in C++?
...
In C++11, you can do std::is_pod<MyType>() to tell whether MyType is POD.
– allyourcode
Mar 31 '14 at 21:24
7
...
The difference between sys.stdout.write and print?
...'), 'Hello', 'World', 2+3
See: https://docs.python.org/2/reference/simple_stmts.html?highlight=print#the-print-statement
In Python 3.x, print becomes a function, but it is still possible to pass something other than sys.stdout thanks to the fileargument.
print('Hello', 'World', 2+3, file=open(...
How to keep a .NET console app running?
...ed as volatile, there is the definite possibility that subsequent reads to _quitFlag in the while loop would be optimized away, leading to an infinite loop.
– Adam Robinson
Apr 6 '10 at 16:51
...
bash: pip: command not found
...
Why not just do sudo easy_install pip or if this is for python 2.6 sudo easy_install-2.6 pip?
This installs pip using the default python package installer system and saves you the hassle of manual set-up all at the same time.
This will allow you to...