robinhouston

DIGITS = "123456789X"
ENCODE = dict(( (i+1, d) for (i, d) in enumerate(DIGITS) ))
DECODE = dict(( (d, i+1) for (i, d) in enumerate(DIGITS) ))

def encode(n):
    a = []
    while n > 0:
        n, r = divmod(n, 10)
        if r == 0: n, r = n - 1, 10
        a.append(ENCODE[r])

robinhouston

create table tweet (
  id serial,
  in_reply_to integer references tweet(id)
);

insert into tweet (id, in_reply_to)
values (1, NULL),
       (2, NULL),
       (3, 2),
       (4, 3),

robinhouston

sage: var("x, y")
....: f = exp(x) / (1 - (1+x)*y)
....: 
....: for (c, i) in f.taylor(x, 0, 13).coefficients():
....:     fac = factorial(i)
....:     for (d, j) in c.taylor(y, 0, 13).coefficients():
....:         print(i, j, d * fac)
....: 
(x, y)
(0, 0, 1)

robinhouston

sage: var("x1, x2, y")
....: f = exp(x1 + x2) / (1 - (1+x1)*(1+x2)*y)
....: 
....: for (c, i) in f.taylor(x1, 0, 5).coefficients():
....:     fac1 = factorial(i)
....:     for (d, j) in c.taylor(x2, 0, 5).coefficients():
....:         fac = fac1 * factorial(j)
....:         for (e, k) in d.taylor(y, 0, 5).coefficients():
....:             print(i, j, k, e * fac)
....: 

robinhouston

^(0|7|[18]5*4|(2|9|[18]5*6)(3|[29]5*6)*(1|8|[29]5*4)|(3|[18]5*[07]|(2|9|[18]5*6)(3|[29]5*6)*(4|[29]5*[07]))(1|8|65*[07]|(0|7|65*6)(3|[29]5*6)*(4|[29]5*[07]))*(5|65*4|(0|7|65*6)(3|[29]5*6)*(1|8|[29]5*4))|(4|[18]5*[18]|(2|9|[18]5*6)(3|[29]5*6)*(5|[29]5*[18])|(3|[18]5*[07]|(2|9|[18]5*6)(3|[29]5*6)*(4|[29]5*[07]))(1|8|65*[07]|(0|7|65*6)(3|[29]5*6)*(4|[29]5*[07]))*(2|9|65*[18]|(0|7|65*6)(3|[29]5*6)*(5|[29]5*[18])))(6|35*[18]|(4|35*6)(3|[29]5*6)*(5|[29]5*[18])|(5|35*[07]|(4|35*6)(3|[29]5*6)*(4|[29]5*[07]))(1|8|65*[07]|(0|7|65*6)(3|[29]5*6)*(4|[29]5*[07]))*(2|9|65*[18]|(0|7|65*6)(3|[29]5*6)*(5|[29]5*[18])))*(2|9|35*4|(4|35*6)(3|[29]5*6)*(1|8|[29]5*4)|(5|35*[07]|(4|35*6)(3|[29]5*6)*(4|[29]5*[07]))(1|8|65*[07]|(0|7|65*6)(3|[29]5*6)*(4|[29]5*[07]))*(5|65*4|(0|7|65*6)(3|[29]5*6)*(1|8|[29]5*4)))|(5|[18]5*[29]|(2|9|[18]5*6)(3|[29]5*6)*(6|[29]5*[29])|(3|[18]5*[07]|(2|9|[18]5*6)(3|[29]5*6)*(4|[29]5*[07]))(1|8|65*[07]|(0|7|65*6)(3|[29]5*6)*(4|[29]5*[07]))*(3|65*[29]|(0|7|65*6)(3|[29]5*6)*(6|[29]5*[29]))|(4|[18]5*[18]|(2|9|[1

robinhouston

import re

for n in range(1, 101):
    r = re.match(r'''
        (?=(?P<Fizz>
            ^(
                [0369]|
                [147][0369]*[258]|
                ([258]|[147][0369]*[147])([0369]|[258][0369]*[147])*([147]|[258][0369]*[258])
            )*$

robinhouston

var dfa = DFA.create();
var i, j;
for (i = 0; i <= 5; i++) for (j = 0; j <= 1; j++) {
	dfa.addState(i + "." + j);
}

for (i = 0; i <= 5; i++) for (j = 0; j <= 1; j++) {
	dfa.addTransition(i + "." + j, Math.min(5, i+1) + "." + Math.min(j+1, 1), C('c'));
	dfa.addTransition(i + "." + j, Math.min(5, i+1) + "." + j, A(C('f'), C('a'), C('e'), C('t'), C('i'), C('o')));
}

robinhouston

; "memories" by HellMood/DESiRE
; the tiny megademo, 256 byte msdos intro
; shown in April 2020 @ REVISION
;
;   (= WILL BE COMMENTED IN DETAIL LATER =)
;
; create : nasm.exe memories.asm -fbin -o memories.com
; CHOOSE YOUR TARGET PLATFORM (compo version is dosbox)
; be sure to use the dosbox.conf from this archive!
; only ONE of the defines should be active!

robinhouston

^(1|8|[29]3*[29]|(3|[29]3*4)(1|8|[07]3*4)*(6|[07]3*[29])|(4|[29]3*5|(3|[29]3*4)(1|8|[07]3*4)*(2|9|[07]3*5))(6|43*5|(5|43*4)(1|8|[07]3*4)*(2|9|[07]3*5))*(3|43*[29]|(5|43*4)(1|8|[07]3*4)*(6|[07]3*[29]))|(5|[29]3*6|(3|[29]3*4)(1|8|[07]3*4)*(3|[07]3*6)|(4|[29]3*5|(3|[29]3*4)(1|8|[07]3*4)*(2|9|[07]3*5))(6|43*5|(5|43*4)(1|8|[07]3*4)*(2|9|[07]3*5))*(0|7|43*6|(5|43*4)(1|8|[07]3*4)*(3|[07]3*6)))(4|[18]3*6|(2|9|[18]3*4)(1|8|[07]3*4)*(3|[07]3*6)|(3|[18]3*5|(2|9|[18]3*4)(1|8|[07]3*4)*(2|9|[07]3*5))(6|43*5|(5|43*4)(1|8|[07]3*4)*(2|9|[07]3*5))*(0|7|43*6|(5|43*4)(1|8|[07]3*4)*(3|[07]3*6)))*(0|7|[18]3*[29]|(2|9|[18]3*4)(1|8|[07]3*4)*(6|[07]3*[29])|(3|[18]3*5|(2|9|[18]3*4)(1|8|[07]3*4)*(2|9|[07]3*5))(6|43*5|(5|43*4)(1|8|[07]3*4)*(2|9|[07]3*5))*(3|43*[29]|(5|43*4)(1|8|[07]3*4)*(6|[07]3*[29])))|(6|[29]3*[07]|(3|[29]3*4)(1|8|[07]3*4)*(4|[07]3*[07])|(4|[29]3*5|(3|[29]3*4)(1|8|[07]3*4)*(2|9|[07]3*5))(6|43*5|(5|43*4)(1|8|[07]3*4)*(2|9|[07]3*5))*(1|8|43*[07]|(5|43*4)(1|8|[07]3*4)*(4|[07]3*[07]))|(5|[29]3*6|(3|[29]3*4)(1|8|[07]3*4)*(

robinhouston

445
ABACA5
A64CA5
A84C45
4BACA5
ABAC1
484C1
46AC5
ABAF7
48AF7