The Nineteenth Byte

« first day (5105 days earlier) ← previous day next day → last day (33 days later) »

New Posts

00:24

Q: PSA: Piet editor URL has changed to piet.bubbler.blue

Due to some unwanted circumstances around the domain and the domain manager, I lost ownership of bubbler.one a couple days ago. As soon as I got aware of this, I moved all my sites hosted at *.bubbler.one to *.bubbler.blue. Now the Piet editor is hosted at https://piet.bubbler.blue. Since I can't...

discussion

Sandbox Posts

01:11

A: Sandbox for Proposed Challenges

Number of legal position in 1D go A 1D go position on a board of size n is a sequence of length n consisting of the numbers0, 1, 2. Not all numbers need to appear in the sequences. A sequence is legal if every block of 1's has a 0 next to it and every block of 2's has a 0 next to it. Think of 1 a...

6 hours later…

mousetail 'he-him'

06:55

Meta seems to be in read only mode, but not main and no announcement

1 hour later…

Themoonisacheese

08:15

CMR:Tomoya Ohtani - 怪盗Rのテーマ From the Rythm Thief OST vol 1: music.youtube.com/watch?v=6RW-ZCfBr6k

l4m2

08:33

Is it Turing Complete: a queue with brainfuck controller, with support while(pop()){, }, push(0) and push(1)? Notice that a brainfuck controller is weaker than a general FSM, so it's not obvious if true

Rosario

08:44

The C definition for consider false ==0 and true !=0, is ok for golfing, instead array of bool and boleans not

@UnrelatedString yes I have seen the book, have precedence deference operator & and * on aritmetc operators

Themoonisacheese

@l4m2 i assume the queue is the only data storage available to the BF controller? otherwise trivially: BF being TC means it can just ignore the queue and still be TC

l4m2

controller mean no tape

Themoonisacheese

righty

can it pop arbitrarly or must it pop the entire queue everytime it wants to pop something?

i guess that doesn't really matter since it could repush the entire queue while it's popping it

l4m2

every [ pops and every pop [

2 hours later…

Themoonisacheese

11:25

> By 9:30 am on 3 January, unofficial police estimates placed the crowd at approximately 1,200 people.[30] Law enforcement deployed about 2,700 police officers, 135 police buses, and several specialized units in order to prevent potential clashes

average measured police response

4 hours later…

m90

15:50

Yes.
Emulate an arbitrary [tag system](https://en.wikipedia.org/wiki/Tag_system).
The symbols are represented by binary strings all of the same length that begin with 1, end with 0, and contain exactly one other 1.
Then the main loop can be [[option0][option1][option2]... [][][]...] -- the outer loop consumes the first 1 of a symbol, then the rest of the symbol is used to select an option, and then the empty loops discard some constant number of symbols.
The halting symbol is represented by 0.
There's some uncertainty about edge cases -- you haven't specified what happens when popping from …

l4m2

16:01

Looks correct

3 hours later…