What is the shortest (Java code + Pom.xml) way to convert arbitrary (not know in advance) JSON to XML?
The objective of the Thomson problem is to determine the minimum electrostatic potential energy configuration of N electrons on the surface of a unit sphere that repel each other with a force given by Coulomb's law. The physicist J. J. Thomson posed the problem in 1904 after proposing an atomic model, later called the plum pudding model, based on his knowledge of the existence of negatively charged electrons within neutrally-charged atoms.
Related problems include the study of the geometry of the minimum energy configuration and the study of the large N behavior of the minimum energy.
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How long ago was this?
The Rules
Each submission must be a full program.
The program must take input as two comma-separated dates in the form YYYY-MM-DD, and print the number of days that has passed since the second date to STDOUT as if today was the first date (if the second date would be in ...
𝔼𝕊𝕄𝕚𝕟, 21 chars / 31 bytes
ѨŃ(1,ï²)Ă⇀!(МŪ($,ï)%1
Try
𝔼𝕊𝕄𝕚𝕟 has everything but aliases for parentheses stuff. Dang.
For centuries there has been a movement to reform the spelling of English. It seeks to change English spelling so that it is more consistent, matches pronunciation better, and follows the alphabetic principle.
Common motives for spelling reform include making the language easier to learn, making it more useful for international communication, or saving time, money and effort.
Most spelling reform proposals are moderate; they use the traditional English alphabet, try to maintain the familiar shapes of words, and try to maintain common conventions (such as silent e). However, some proposals are radical...
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What is the Sandbox?
This "Sandbox" is a place where Programming Puzzles & Code Golf (PPCG) users can get feedback on prospective challenges they wish to post to the main page. This is useful because writing a clear and fully specified challenge on the first try can be difficult. There is a much...
If an challange gives a set of languages to chose from, how free can I feel by chosing a version?
Concrete example: I found an solution for a challange in javascript. Where the challange just counts a list of languages that are valid for that challange, where javascript is named with others.
Bu...
Converging Sums of a Fractal Sequence
code-golf number sequence number-theory fractal
Background
A fractal sequence is an integer sequences where you can remove the first occurrence of every integer and end up with the same sequence as before.
A very simple such sequence is called Kimberling'...0
