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What's the most efficient way to test two integer ranges for overlap?
... is in both ranges, i.e.
x1 <= C <= x2
and
y1 <= C <= y2
Now, if we are allowed to assume that the ranges are well-formed (so that x1 <= x2 and y1 <= y2) then it is sufficient to test
x1 <= y2 && y1 <= x2
...
Iterate a list as pair (current, next) in Python
...thon looking at the "current" element and the "next" element. I have, till now, done so with code like:
10 Answers
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How to remove all whitespace from a string?
...
@DWin Supposedly it is faster if R knows that it does not have to invoke the regular expression stuff. In this case it does not really make any difference, I am just in the habit of doing so.
– Aniko
May 13 '11 at 13:00
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Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
... applicability to the modern programming scene. The goto-less meme verges now on a religion, right down to its scriptures dictated from on high, its high priests and the shunning (or worse) of perceived heretics.
Let's put Dijkstra's paper into context to shed a little light on the subject.
When ...
Is there a way to override class variables in Java?
...magine your super class has an Object member but in your sub-class this is now more defined to be an Integer.
class Dad
{
private static final String me = "dad";
protected String getMe() {
return me;
}
public void printMe()
{
Sys...
What are the differences between Rust's `String` and `str`?
...of UTF-8 bytes of dynamic length somewhere in memory. Since the size is unknown, one can only handle it behind a pointer. This means that str most commonly2 appears as &str: a reference to some UTF-8 data, normally called a "string slice" or just a "slice". A slice is just a view onto some data,...
Undefined reference to `pow' and `floor'
... an error, but pow, floor, and printf functions have undefined references, now if I will try to link this to executable:
$ gcc fib.o
fib.o: In function `fibo':
fib.c:(.text+0x57): undefined reference to `pow'
fib.c:(.text+0x84): undefined reference to `floor'
collect2: error: ld returned 1 exit sta...
MySQL vs MongoDB 1000 reads
..., with many indexes needed to ensure relational integrity between tables.
Now consider the same design with a document store. If all of those related tables are subordinate to the main table (and they often are), then you might be able to model the data such that the entire entity is stored in a si...
Vim: Delete buffer without losing the split window
...ch is so simple, not requiring and entire script to run it. In my VIMRC, I now have this mapped for CTRL+C: nnoremap <C-c> :bp\|bd #<CR>
– Cloud
Jul 12 '13 at 17:40
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Benchmarking (python vs. c++ using BLAS) and (numpy)
...ies. Since performance is an issue I did some benchmarking and would like know, if the approach I took is legitimate.
4 Ans...