I am representing a collection of turtles, each with a moment when hatched. I want to randomly choose any mature turtle. I pretend that minutes are years, in this aquarium simulation. record Turtle( ...

Context I have implemented a broad phase collision detection algorithm that returns a nested vector (Vec<Vec<usize>>) of indices. I can guarantee that each index appears at most once ...

I'm looking for a means to access, say, a filtered view element by index. Here is a snippet of code for context: std::vector<int> v = {1, 2, 3, 4, 5}; auto v_view = v | ranges::views::filter([](...

There are more than 10 thousand documents in my index, but I cannot access all documents with search. I may also have performance problems with the scroll API. I found a method on how to overcome this ...

In short, my question is: Should Sysbench eliminate the effect of cache when measuring the memory read/write performance, similar to how the effect of memory is eliminated when measuring the disk ...

If I have a list of 10K elements, and I want to randomly iterate through all of them, is there an algorithm that lets me access each element randomly, without just sorting them randomly first? In ...

I am trying to make a view that updates based on if the user toggles the favorite button or not. I want the entire view to reconstruct in order to display an array of values whenever that array of ...

My goal is to be able to reduce time needed to look at specific sections from the middle of very large log files compressed to .xz format. If the .xz files are for example 6GB compressed and 60GB ...

I have a 100 GB text file in a 7z archive. I can find a pattern 'hello' in it by reading it by 1 MB block (7z outputs the data to stdout): Popen("7z e -so archive.7z big100gb_file.txt", ...

Re: Swift 5 let str = "my string" let slice: ArraySlice<Character> = ArraySlice(str) Is the ArraySlice created in O(1) time? I'm curious because complexities pertaining to extended ...

in java I would like to be able to maintain my Collection of fishes sorted by species at all time (hence the use of a HashMap) while being able to pick a random element from all species except one ...

In theory AES encryption in CTR mode allows for decrypting at any block index (that is you don't have to decrypt the whole encrypted data from the begining if you want to decrypt only from a certain ...

The input to my Perl program is a text file that contains one 'item' per line. For example, a file with below contents: item1 abc yyy anything blabla whatever item2 efg dod whatever blabla mmm item3 ...

Here is the main code: import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws IOException { RandomAccessFile raf = new RandomAccessFile(&...

I'm working on a project in text compression and I need to design an efficient algorithm in a LZ77 compressed sequences. Specially, Given a LZ77 compressed sequence and an index i, we can recover a ...