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In STL maps, is it better to use map::insert than []?
...es in STL maps . I preferred map[key] = value; because it feels natural and is clear to read whereas he preferred map.insert(std::make_pair(key, value)) .
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How do you parse and process HTML/XML in PHP?
...he SimpleXML extension provides a very simple and easily usable toolset to convert XML to an object that can be processed with normal property selectors and array iterators.
SimpleXML is an option when you know the HTML is valid XHTML. If you need to parse broken HTML, don't even consider SimpleX...
What's the best way to iterate over two or more containers simultaneously
...ften in your data, consider using another pattern which zips two sequences and produces a range of tuples, corresponding to the paired elements:
for (auto& [a, b] : zip(containerA, containerB)) {
a = b;
}
The implementation of zip is left as an exercise for the reader, but it follows easi...
Throwing cats out of windows
...y write a little DP (dynamic programming) for the general case of n floors and m cats.
The main formula, a[n][m] = min(max(a[k - 1][m - 1], a[n - k][m]) + 1) : for each k in 1..n, should be self-explanatory:
If first cat is thrown from k-th floor and dies, we now have k - 1 floors to check (all...
Determining complexity for recursive functions (Big O notation)
I have a Computer Science Midterm tomorrow and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help wo...
Compare two objects in Java with possible null values
...Why not just change the String types to Objects - making it more generic? And then it is the same as what you will get if you move to Java 7.
– Tom
Nov 7 '13 at 18:31
3
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How to keep onItemSelected from firing off on a newly instantiated Spinner?
...ple boolean flag would allow you to detect the rogue first selection event and ignore it.
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SQL Server 2012 column identity increment jumping from 6 to 1000+ on 7th entry [duplicate]
...normal. Microsoft added sequences in SQL Server 2012, finally, i might add and changed the way identity keys are generated. Have a look here for some explanation.
If you want to have the old behaviour, you can:
use trace flag 272 - this will cause a log record to be generated for each generated i...
Java Naming Convention with Acronyms [closed]
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@DerFlatulator: it's a question of automation when converting from UpperCamelCase to lowerCamelCase: I had the problem when automating Hibernate mapping to a snake_case: DvdPlayer -> dvd_player but DVDPlayer -> d_v_d_player. There is no way to automate DVDPlayer to dvd_...
How to parse Excel (XLS) file in Javascript/HTML5
...with it. I need to read xls file row-wise, read data in every column and convert it to JSON.
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