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What is the difference between trie and radix trie data structures?
...ewer edges. To circumvent the memory concern, various proposals were made. Based on those variations trie are also named as “compact trie” and “compressed trie”. While a consistent nomenclature is rare, a most common version of a compact trie is formed by grouping all edges when nodes have s...
std::shared_ptr of this
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Try to construct a shared_ptr based on a default-constructed shared_ptr and whatever you want to point it at...
– Deduplicator
Oct 25 '15 at 17:13
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Open a buffer as a vertical split in VIM
...t;leader>s :ls<cr>:sp<space>\|<space>b<space>
Based on this, you can see the buffer list as soon as you hit
<leader>b
<leader>v
<leader>s
and then just enter the desired buffer number N. This will then open the buffer in the desired window. You ca...
Import SQL dump into PostgreSQL database
... switching hosts and the old one provided a SQL dump of the PostgreSQL database of our site.
15 Answers
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What is a dependency property?
... it to be in Row #2 on the parent Grid (due to the fact that rows are zero-based) but the Row DependencyProperty belongs to the Grid object.
– Jonathan Perry
Jul 17 '13 at 12:24
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SQLite UPSERT / UPDATE OR INSERT
I need to perform UPSERT / INSERT OR UPDATE against a SQLite Database.
7 Answers
7
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程序员之网络安全系列（六）：动态密码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...录密码的烦恼。
有两种方法，生成动态密码：
Event-based OTP (EOTP)
基于事件同步的令牌，其原理是通过某一特定的事件次序及相同的种子值作为输入，在DES算法中运算出一致的密码，其运算机理决定了其整个工作流程同时钟...
Virtual functions and performance - C++
...o be defined via vtable if it's marked as virtual or if it's overriding a base class that has it as virtual. You'll often see classes that have a group of virtual functions for public interface, and then a lot of inline accessors and so on. (Technically, this is implementation-specific and a compi...
What does 'wb' mean in this code, using Python?
... when you specify text mode with wt), however, Python will encode the text based on the default text encoding. Additionally, Python will convert line endings (\n) to whatever the platform-specific line ending is, which would corrupt a binary file like an exe or png file.
Text mode should therefore ...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...usted programs both interactively and in automatic mode. It has a ptrace()-based backend which allows its use on a Linux system without special privileges, as well as a far faster and more poweful backend which requires patching the kernel.
It is also possible to create a sandbox on Unix-like syste...