大约有 42,000 项符合查询结果（耗时：0.0308秒） [XML]
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
...a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In contrast, Intel C++ Compiler , executable icc , will eliminate the library call for pow(a,6) .)
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How do I grep for all non-ASCII characters?
I have several very large XML files and I'm trying to find the lines that contain non-ASCII characters. I've tried the following:
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Initialising an array of fixed size in python [duplicate]
...ets the requirements of the question because you have a defined size array and you can index one of the five elements without getting an IndexError. This is the closest thing to the C expression.
– user2233706
Oct 26 '14 at 17:43
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Why is inserting in the middle of a linked list O(1)?
...r business logic that a new node needs to be added (or an old one deleted) and you do so. You may add 50 nodes in a single iteration and each of those nodes is just O(1) the time to unlink two adjacent nodes and insert your new one..
Edit: Man, you type a second paragraph and all of a sudden inste...
Quick unix command to display specific lines in the middle of a file?
Trying to debug an issue with a server and my only log file is a 20GB log file (with no timestamps even! Why do people use System.out.println() as logging? In production?!)
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Delete all data in SQL Server database
...e all records from all tables of my database? Can I do it with one SQL command or I need for one SQL command per one table?
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Best way to iterate through a Perl array
Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained).
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Expand a random range from 1–5 to 1–7
Given a function which produces a random integer in the range 1 to 5, write a function which produces a random integer in the range 1 to 7.
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How to file split at a line number [closed]
...last split, so
split -l 300000 file_name
will output xaa with 300k lines and xab with 100k lines, for an input with 400k lines.
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Check whether a value is a number in JavaScript or jQuery [duplicate]
...ic string with trailing letters the parseFloat | parseInt will return true and the second check isFInite will return false. While with unary + it will fail immediately.
– Arman McHitarian
May 20 '13 at 16:29
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