Javascript (using external library) (149 bytes)
(n,w)=> _.From(w).Select((x,i)=>({i:i,x:x})).Split((i,v)=>v.x==" ").Where(a=>a.Min(i=>i.i)<=n-1&&a.Max(i=>i.i)>=n-2).First().Select(i=>i.x).Write("")
Link to lib:https://github.com/mvegh1/Enumerable/blob/master/linq.js
Note that this code fails ...
Here is a regex that works fine in most regex implementations:
(?<!filename)\.js$
This matches .js for a string which ends with .js except for filename.js
Javascript doesn't have regex lookbehind. Is anyone able put together an alternative regex which achieve the same result and works in java...
This little blurb from Downgoat's PPCG Design Userscript:
Before you post, take some time to read through the forbidden loopholes if you haven't done so already.
That appears right above the Post your answer button when the script is enabled. Here's what it looks like as I type this:
...
Post the shortest code possible that will output 42 only if the input is:
abbcccddddeeeee ... zzzzzzzzzzzzzzzzzzzzzzzzzz
Summary
Given a list of integers, return the index each integer would end up at when sorted.
For example, if the list was [0,8,-1,5,8], you should return [1,3,0,2,4]. Note that the two 8s maintain their order relative to each other (the sort is stable).
Put another way: For each element in t...
You are using both the grade up ⍋ and grade down ⍒ as monadic primitives.
By definition grade up returns an integer array of indices which specify the sorted order of the expression following it, in ascending order. If any elements are equal (in your example the two letter l's) , they will appe...
This should be a simple challenge.
Given a number n >= 0, output the super-logarithm (or the log*, log-star, or iterated logarithm, which are equivalent since n is never negative for this challenge.) of n.
This is one of the two inverse functions to tetration. The other is the super-root, whi...
Lets Play Kick The Can!
Kick the can is a children's game. Involving one defender, and multiple attackers. Today it is no longer such a game! Your job is to write a bot that plays it, to win, king-of-the-hill style!
https://en.wikipedia.org/wiki/Kick_the_can
There are some key differences in t...
