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How to recognize USB devices in Virtualbox running on a Linux host? [closed]

...d filter from device, no devices is listed, even if an USB pen is attached and recognized by my Lubuntu 13.10. If i run the guest, nothing happens if I attach the device and, as above, no USB device is detected in Devices -> USB devices ...
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How does a hash table work?

... in layman's terms. Let's assume you want to fill up a library with books and not just stuff them in there, but you want to be able to easily find them again when you need them. So, you decide that if the person that wants to read a book knows the title of the book and the exact title to boot, the...
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string

I had this question on an Algorithms test yesterday, and I can't figure out the answer. It is driving me absolutely crazy, because it was worth about 40 points. I figure that most of the class didn't solve it correctly, because I haven't come up with a solution in the past 24 hours. ...
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Python JSON serialize a Decimal object

I have a Decimal('3.9') as part of an object, and wish to encode this to a JSON string which should look like {'x': 3.9} . I don't care about precision on the client side, so a float is fine. ...
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Android: android.content.res.Resources$NotFoundException: String resource ID #0x5

...n my app. What it does is it has a .txt file with words for a Hangman game and I think the exception is thrown when accessing the file. My file, cuvinte.txt is located into /assets/. Here is my code (i skipped the layout/xml part, which works fine): ...
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gcc makefile error: “No rule to make target …”

...ionships. If newer tools like SubCons or CMake are not to taste, gcc -MT and gnu make patterns can solve this. See also. – Nathan Kidd Mar 14 '13 at 18:09 ...
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error C2662: “Screen::move”: 不能将“this”指针从“const Screen”转...

...ursor = row + c; return *this; } const Screen& Screen::display(std::ostream& os) const { os << contents << '\n'; return *this; } //main中处理 myScreen.display(cout).move(4,0).set('#').display(cout); 解决办法:通过返回调用函数的对象的引用,可以将一些...
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Mac OS X 平台有哪些好用的 SSH 客户端? mac 怎么登录到 linux 服务器并传...

Mac OS X 平台有哪些好用的 SSH 客户端? mac 怎么登录到 linux 服务器并传输文件?Mac OS X 平台有哪些好用的 SSH 客户端?mac 怎么登录到 linux 服务器并传输文件?推荐Cyberduck小黄鸭:下载地址:http: www.pc6...Mac OS X 平台有哪些好用的 ...
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Mac OS X安装Bochs - 更多技术 - 清泛网 - 专注C/C++及内核技术

Mac OS X安装Bochs1.安装x11;2.开启Mac OS X的root用户3.configure我在这里遇到的问题是,提示我少一个这个头文件X11 extensions Xrandr.h谷歌了一下,机子...1.安装x11; 2.开启Mac OS X的root用户 3.configure 我在这里遇到的问题是,提示我少一个...
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IntelliJ IDEA JDK configuration on Mac OS

...king me to choose JDK for this project. Anyone know how I can configure it and make it easy to use? 4 Answers ...