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How to find the lowest common ancestor of two nodes in any binary tree?
...west common ancestor problem page on Wikipedia. (Credit to Jason for originally posting this link)
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Update Item to Revision vs Revert to Revision
...n that your workingcopy is out of date.
revert to this revision will undo all changes in your working copy which were made after the selected revision (in your example rev. 96,97,98,99,100)
Your working copy is now in modified state.
The file content of both scenarions is same, however in first c...
Advantages of Antlr (versus say, lex/yacc/bison) [closed]
...s a reasonable observation of output: compilers.iecc.com/comparch/article/98-11-040 : "ANTLR/PCCTS are LL which makes the grammar writing more difficult, but the generated code is readable. Yacc being LALR (of course you know that) makes the grammar writing easier, but the generated code might as w...
Difference between 'struct' and 'typedef struct' in C++?
...struct Foo x;
Any time you want to refer to a Foo, you'd always have to call it a struct Foo. This gets annoying fast, so you can add a typedef:
struct Foo { ... };
typedef struct Foo Foo;
Now struct Foo (in the tag namespace) and just plain Foo (in the ordinary identifier namespace) both refe...
What is array to pointer decay?
... decay doesn't happen.
If you're passing an array by value, what you're really doing is copying a pointer - a pointer to the array's first element is copied to the parameter (whose type should also be a pointer the array element's type). This works due to array's decaying nature; once decayed, size...
Use of an exclamation mark in a Git commit message via the command line
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Mark Amery
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answered May 23 '14 at 9:18
nicky_zsnic...
What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
All of these provide binary serialization, RPC frameworks and IDL. I'm interested in key differences between them and characteristics (performance, ease of use, programming languages support).
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CSS: bolding some text without changing its container's size
I have a horizontal navigation menu, which is basically just a <ul> with the elements set side-by-side. I do not define width, but simply use padding, because I would like the widths to be defined by the width of the menu item. I bold the currently-selected item.
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How do you track record relations in NoSQL?
...pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal web pages.
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What's the false operator in C# good for?
...rride |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&.
For example, look at this code (from http://ayende.com/blog/1574/nhibernate-criteria-api-operator-overloading - where I found out about this trick; archived version by @Biggs...