The dangling else is a problem in computer programming in which an optional else clause in an if–then(–else) statement results in nested conditionals being ambiguous. Formally, the reference context-free grammar of the language is ambiguous, meaning there is more than one correct parse tree.
In many programming languages one may write conditionally executed code in two forms: the if-then form, and the if-then-else form – the else clause is optional:
if a then s
if b then s1 else s2
This gives rise to an ambiguity in interpretation when there are nested statements, specifically whenever an if...
Using Ruby on Rails and Materialize CSS, the Roboto font is not rendering.
My layout:
application.html.erb
<!DOCTYPE html>
<html>
<head>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-t...
Python, 69 bytes
Apparently shorter than the other python entries, save one that uses sympy numpy (misremembered)
from random import*
print(eval(('+(1>('+2*'+random()**2)')*2000)/500)
Wow, it's been a while since I posted a multiline answer on this site... I've been using Turtlèd too much for...
The Multiplication Fibonacci sequence starts with 1 and 2, then each term is the product of the last two terms:
Fn = Fn-1 × Fn-2; F1 = 1; F2 = 2
The sequence starts out like this:
1
2
2
4
8
32
256
8192
2097152
17179869184
36028797018963968
618970019642690137449562112
Given a positive int...
Anonymous
Magic mirror madness
code-golf string
Introduction
I have a room full of magic mirrors.
They are mysterious artifacts that can duplicate any item, except another magic mirror.
More explicitly, a duplicate version of the item will appear on the other side of the mirror, at the same distance.
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Briefing:
You are a bot, in a 2D grid that extends infinitely in all four directions, north, south, east and west. When given a number, you must move the bot so that you get to the target number.
Here's how the grid works:
You can move in 4 directions: north, south, east or west. Once you move...Anonymous
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Haskell, 116 bytes
d=8^9
g[a,b]=0^(fromEnum$a+b+d^2<a^2+b^2+div d 2)
p n=4*(sum.take(floor n)$g<$>iterate((\x->mod(9*x+1)d)<$>)[1,5])/n
Because dealing with import System.Random; r=randoms(mkStdGen 2) would take too many precious bytes, I generate an infinite list of random numbers with the al...Anonymous
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