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Code Golf: Collatz Conjecture
Inspired by http://xkcd.com/710/ here is a code golf for it.
70 Answers
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Excel: last character/string match in a string
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Note: Whilst my suggestion would win at sketchy code-golf, the usage of arrays is not always recommended when used in large quantities. It does however, has other benefits which I've tried to explicitly mention. This makes the answer by @Tigeravatar just as ...
More elegant way of declaring multiple variables at the same time
... is probably true, it doesn't come natural to may so I will have to read a bit and play around until I fully get what you mean specially since dictionaries that is one of my weaknesses in python yet. Thank you very much, I'll be back :)
– Trufa
Mar 31 '11 at 5:...
jQuery document.createElement equivalent?
...) if you use the old way. if you have something like:
var userInput = window.prompt("please enter selector");
$(userInput).hide();
a bad guy can input <script src="xss-attach.js"></script> to tease you. fortunately, $.parseHTML() avoid this embarrassment for you:
var a = $('&...
Difference between malloc and calloc?
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@tristopia: If your mode of thinking is "size_t is 64-bit so that's no problem", that's a flawed way of thinking that's going to lead to security bugs. size_t is an abstract type that represents sizes, and there's no reason to think the arbitrary product of a 32-bit number and a...
How do I perform a Perl substitution on a string while keeping the original?
...lready doing it. Unnecessary concision at the cost of readability isn't a win.
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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在模型窗口中输入如下代码：
min=2*x1+3*x2;
x1+x2>=350;
x1>=100;
2*x1+x2<=600;
然后点击工具条上的按钮 即可。
例1.2 使用LINGO软件计算6个发点8个收点的最小费用运输问题。产销单位运价如下表。
销地
产地
B1
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Use JNI instead of JNA to call native code?
...er from c to java, then copy it back from java to c. In this case jni will win in performance because you can keep and modify this buffer in c, without copying.
These are the problems I've encountered. Maybe there's more. But in general performance is not that different between jna and jni, so whe...
Where are static variables stored in C and C++?
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Don NeufeldDon Neufeld
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How do you create a Swift Date object?
...ting a Date and Time in Swift
In Swift, dates and times are stored in a 64-bit floating point number measuring the number of seconds since the reference date of January 1, 2001 at 00:00:00 UTC. This is expressed in the Date structure. The following would give you the current date and time:
let curre...