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How to check if an element is in an array
In Swift, how can I check if an element exists in an array? Xcode does not have any suggestions for contain , include , or has , and a quick search through the book turned up nothing. Any idea how to check for this? I know that there is a method find that returns the index number, but is there ...
What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?
...s confusing if you're used to traditional RDBMSes. Everything, internally, is stored as text. Data types are coerced/converted into various storage locations based on affinities (ala data types assigned to columns).
The best thing that I'd recommend you do is to :
Temporarily forget everything yo...
string c_str() vs. data()
...fference between c_str() and data() (in STL and other implementations) is that c_str() is always null terminated while data() is not.
As far as I have seen in actual implementations, they either do the same or data() calls c_str() .
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Storing C++ template function definitions in a .CPP file
...er to have stored in a CPP file instead of inline in the header. I know this can be done as long as you know which template types will be used. For example:
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What is difference between monolithic and micro kernel?
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Monolithic kernel is a single large process running entirely in a single address space. It is a single static binary file. All kernel services exist and execute in the kernel address space. The kernel can invoke functions directly. Examples of...
Insert picture/table in R Markdown [closed]
...rovide reasonable cheat sheets or HOWTOs for tables and images. Top on my list are:
Pandoc readme, specifically tables
RStudio's RMarkdown, more details in basics (including tables) and a rewrite of pandoc's markdown.
Pictures are very simple to use but do not offer the ability to adjust the ima...
How to cherry-pick multiple commits
I have two branches. Commit a is the head of one, while the other has b , c , d , e and f on top of a . I want to move c , d , e and f to first branch without commit b . Using cherry pick it is easy: checkout first branch cherry-pick one by one c to f and rebase second branch on...
How to determine the longest increasing subsequence using dynamic programming?
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OK, I will describe first the simplest solution which is O(N^2), where N is the size of the collection. There also exists a O(N log N) solution, which I will describe also. Look here for it at the section Efficient algorithms.
I will assume the indices of the array are from 0 t...
Facebook Architecture [closed]
.... What they use & why they use. How do they scale & what are the design decisions for what they do etc. Main underpinning being to learn. Knowing about sites which handles such massive traffic gives lots of pointers for architects etc. to keep in mind certain stuff while designing new sites. I am sh...
Consistency of hashCode() on a Java string
The hashCode value of a Java String is computed as ( String.hashCode() ):
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