What does using (vec col) or (vector arg1 & args) cost?
I am working through some Lisp exercises using Clojure. If I were to convert Lisp lists to Clojure vectors, solving some of the problems would be simpler, so here is my question:
C++11 support for higher-order list functions
Most functional programming languages (e.g. Common Lisp, Scheme / Racket, Clojure, Haskell, Scala, Ocaml, SML) support some common higher-order functions on lists, such as map
, filter
, takeWhile
, dropWhile
, foldl
, foldr
(see e.g. Common Lisp, Scheme / Racket, Clojure side-by-side reference sheet, the Haskell, Scala, OCaml, and the SML documentation.)
Random List of numbers in C
I have just started a C programming course and so far have only done the basics like printf
, read a little on variables etc on the course book. The teacher has tasked us with writing a program that will take a value entered by the user, this will be the number of students in the class (25 at the moment but can be variable). It will then list the number of students randomly and place them in 3 columns. The purpose is to sort students into groups of 3 randomly, then display on the screen in columns.
Use Queue or stick to native f# lists
I need something that represents a queue in F#.
Test driven development when implementing a flexible length list
According to the commonly used TDD strategy, to implement something, you write a test that fail the code first, write the simplest code, refactor, and then repeat. I am trying to imagine this scenario with implementing a flexible length list (e.g. List<T>
in .net.
What can Go chan do that a list cannot?
I want to know in which situation Go chan makes code much simpler than using list or queue or array that is usually available in all languages.
Custom Alphabetic Sorting of Array in Java
I have a requirement to read a text file with lines in tag=value format and then output the file with specific tags listed first and the rest sorted alphabetically. The incoming file is randomly sorted with the exception of the first line. The output needs the first two lines to always be the same. For example, given the following tags:
Show all definitions in Scheme?
I want to see all user-made definitions in a Scheme REPL, both loaded from files and entered at the REPL. Is there any way to “dump all definitions”?
Multiple orders in a single list
I have a problem with a ranking system I am using.
What is the rule on passing around collections? List vs. Ienumerable vs. IQueryable
I do Entity Framework stuff using repository patterns that are passed to the controller to than be called by the client using jquery AJAX.. Is there any basic rules on in what format I should be passing around these lists? Within the server code I suppose I could just pass around an Iqueryable? yes? And to the client I could pass around a list version ? That is my first guess..