D E F R A G M E N T I O N

API Guy.

He has a serious regex problem.
Regexes are never easy to read, but the ones he uses just take the cake. They're either blatantly wrong, or totally over-engineered garbage that somehow still lacks basic functionality. I think "garbage" here is a little too nice, since you can tell what garbage actually is/was without studying it for five minutes.

In lieu of an actual rant (mostly because I'm overworked), I'll just leave a few samples here. I recommend readying some bleach before you continue reading.

Not a valid url name regex:
VALID_URL_NAME_REGEX = /\A[\w\-]+\Z/

Semi-decent email regex: (by far the best of the four)
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

Over-engineered mess that only works for (most) US numbers:
VALID_PHONE_REGEX = /1?\s*\W?\s*([2-9][0-8][0-9])\s*\W?\s*([2-9][0-9]{2})\s*\W?\s*([0-9]{4})(\se?x?t?(\d*))?/

and for the grand finale:

ZIP_CODE_REGEX = /(^\d{5}(-\d{4})?$)|(^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$)|GIR[ ]?0AA|((AB|AL|B|BA|BB|BD|BH|BL|BN|BR|BS|BT|CA|CB|CF|CH|CM|CO|CR|CT|CV|CW|DA|DD|DE|DG|DH|DL|DN|DT|DY|E|EC|EH|EN|EX|FK|FY|G|GL|GY|GU|HA|HD|HG|HP|HR|HS|HU|HX|IG|IM|IP|IV|JE|KA|KT|KW|KY|L|LA|LD|LE|LL|LN|LS|LU|M|ME|MK|ML|N|NE|NG|NN|NP|NR|NW|OL|OX|PA|PE|PH|PL|PO|PR|RG|RH|RM|S|SA|SE|SG|SK|SL|SM|SN|SO|SP|SR|SS|ST|SW|SY|TA|TD|TF|TN|TQ|TR|TS|TW|UB|W|WA|WC|WD|WF|WN|WR|WS|WV|YO|ZE)(\d[\dA-Z]?[ ]?\d[ABD-HJLN-UW-Z]{2}))|BFPO[ ]?\d{1,4}/

^ which, by the way, doesn't match e.g. Australian zip codes. That cost us quite a few sales. And yes, that is 512 characters long.

D A Y U M N 🔥

Share your most useful terminal aliases and functions.

alias gs='git status'
alias gcm='git commit -m'
alias push='git push'
alias pull='git pull'
alias hosts='sudo nano /etc/hosts'
alias glog='git log --graph --oneline --decorate -n 10 --color'
alias mykey='cat ~/.ssh/id_rsa.pub | xclip -sel clip'

function mkcd () {
mkdir -p -- "$1" && cd -P -- "$1"
}

As well as one for each major project (lets say 1+ weeks of dev time) to immediately cd to it from anywhere. How about you guys?

Always looking to improve my terminal commands, so am curious what everyone else uses for shortcuts.

A is for Assembly, a wizard's spell

B is for Bootstrap, so bland and the same. And also for Brainf*ck, will blow you away

C is for COBOL, your grandad knows that

D is for daemon, your server knows what

E is for Express.js, you node what is coming

F is for FORTRAN, which is perferct for sciencing

G is for GNU which is GNU not UNIX

H is for Haskell using functional units

I is for Intance, An action of Object

J is for Java plays with them Always

K is for Kotlin, Android's new toy

L is for Lisp, scheming a ploy

M is for Matlab, who knows how it works

N is for Node a bloatware of code

O is for Objective Pascal, you did not expect that

P is for programming, we all love to do that

Q is for Queries, A database is made

R is for R, statistics are great

S is for Selenium, you have to test that

S is for Smalltalk, let's make it all brief

T is for Turing Test, how human is this?

U is for Unix, build with all talents

V is for Visual Studio, built with all laments

W is for Web, lets build something cool

X is for XHTML, remember all that?

Y is for Y2K, I'm tired as f*ck

Z is for Zip, let's zip is all now.

Get yourself coffee and back to the grind.

Having fun in Germany, I'm going to stay here for 3 days.

Everything is nice
except
that

I'll forget e v e r y t h i n g of my code
because
it is
U N D O C U M E N T E D

Wish me luck

Started this machine for the first time after 18 years!!

IBM R51 (32 bit single core Pentium M), 1gb RAM, 40gb old mechanical hdd.

Installed Ubuntu 12 (32 bit from old iso) , installed some educational software to teach mouse n keyboard (my daughter is good in touchscreen on ipad), she is getting hang of mouse so quick, amazed how fast kids learn, wish I could be so fast too.

POSTMORTEM

"4096 bit ~ 96 hours is what he said.

IDK why, but when he took the challenge, he posted that it'd take 36 hours"

As @cbsa wrote, and nitwhiz wrote "but the statement was that op's i3 did it in 11 hours. So there must be a result already, which can be verified?"

I added time because I was in the middle of a port involving ArbFloat so I could get arbitrary precision. I had a crude desmos graph doing projections on what I'd already factored in order to get an idea of how long it'd take to do larger
bit lengths

@p100sch speculated on the walked back time, and overstating the rig capabilities. Instead I spent a lot of time trying to get it 'just-so'.
Worse, because I had to resort to "Decimal" in python (and am currently experimenting with the same in Julia), both of which are immutable types, the GC was taking > 25% of the cpu time.

Performancewise, the numbers I cited in the actual thread, as of this time:
largest product factored was 32bit, 1855526741 * 2163967087, took 1116.111s in python.
Julia build used a slightly different method, & managed to factor a 27 bit number, 103147223 * 88789957 in 20.9s,
but this wasn't typical.

What surprised me was the variability. One bit length could take 100s or a couple thousand seconds even, and a product that was 1-2 bits longer could return a result in under a minute, sometimes in seconds.

This started cropping up, ironically, right after I posted the thread, whats a man to do?

So I started trying a bunch of things, some of which worked. Shameless as I am, I accepted the challenge. Things weren't perfect but it was going well enough. At that point I hadn't slept in 30~ hours so when I thought I had it I let it run and went to bed. 5 AM comes, I check the program. Still calculating, and way overshot. Fuuuuuuccc...
So here we are now and it's say to safe the worlds not gonna burn if I explain it seeing as it doesn't work, or at least only some of the time.

Others people, much smarter than me, mentioned it may be a means of finding more secure pairs, and maybe so, I'm not familiar enough to know.

For everyone that followed, commented, those who contributed, even the doubters who kept a sanity check on this without whom this would have been an even bigger embarassement, and the people with their pins and tactical dots, thanks.

So here it is.
A few assumptions first.
Assuming p = the product,
a = some prime,
b = another prime,
and r = a/b (where a is smaller than b)
w = 1/sqrt(p)
(also experimented with w = 1/sqrt(p)*2 but I kept overshooting my a very small margin)

x = a/p
y = b/p

1. for every two numbers, there is a ratio (r) that you can search for among the decimals, starting at 1.0, counting down. You can use this to find the original factors e.x. p*r=n, p/n=m (assuming the product has only two factors), instead of having to do a sieve.

2. You don't need the first number you find to be the precise value of a factor (we're doing floating point math), a large subset of decimal values for the value of a or b will naturally 'fall' into the value of a (or b) + some fractional number, which is lost. Some of you will object, "But if thats wrong, your result will be wrong!" but hear me out.

3. You round for the first factor 'found', and from there, you take the result and do p/a to get b. If 'a' is actually a factor of p, then mod(b, 1) == 0, and then naturally, a*b SHOULD equal p.
If not, you throw out both numbers, rinse and repeat.

Now I knew this this could be faster. Realized the finer the representation, the less important the fractional digits further right in the number were, it was just a matter of how much precision I could AFFORD to lose and still get an accurate result for r*p=a.

Fast forward, lot of experimentation, was hitting a lot of worst case time complexities, where the most significant digits had a bunch of zeroes in front of them so starting at 1.0 was a no go in many situations. Started looking and realized
I didn't NEED the ratio of a/b, I just needed the ratio of a to p.

Intuitively it made sense, but starting at 1.0 was blowing up the calculation time, and this made it so much worse.

I realized if I could start at r=1/sqrt(p) instead, and that because of certain properties, the fractional result of this, r, would ALWAYS be 1. close to one of the factors fractional value of n/p, and 2. it looked like it was guaranteed that r=1/sqrt(p) would ALWAYS be less than at least one of the primes, putting a bound on worst case.

The final result in executable pseudo code (python lol) looks something like the above variables plus

while w >= 0.0:
if (p / round(w*p)) % 1 == 0:
x = round(w*p)
y = p / round(w*p)
if x*y == p:
print("factors found!")
print(x)
print(y)
break
w = w + i

Still working but if anyone sees obvious problems I'd LOVE to hear about it.

Hey, why isn't X working?

Well, whats it doing

It doesn't work

That doesn't help

OMG it blue screened

What did the blue screen say?

How do you fix it?

T e l l M e W h a t I t S a i d S o I C a n H e l p Y o u

I'm factory resetting it now

My code review nightmare part 2

Team responsible for code 'quality' dictated in their 18+ page coding standard document that all the references in the 'using' block be sorted alphabetically. Easy enough in Visual Studio with the right-click -> 'Remove and Sort Usings', so I thought.

Called into a conference room with other devs and the area manager (because 'Toby' needed an audience) focusing on my lack of code quality and not adhering to the coding standard.

The numerous files in question were unit tests files

using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Collections.Generic;
using System.Linq;
<the rest of the usings>

T: "As you can see, none of these files' usings are in alphabetical order"
Me: "Um, I think they are. M comes before S"
T: "The standards clearly dictate system level references are to be sorted first."
Mgr: "Yes, why didn't you sort before checking this code in? T couldn't have made the standards any easier to follow. All you had to do is right-click and sort."
Me: "I did. M comes before S."
T: "No You Didn't! That is not a system reference!"
Me: "I disagree. MSTest references are considered a system level reference, but whatever, I'll move that one line if it upsets you that much."
Mgr: "OK smartass, that's enough disrespect. Just follow the fucking standard."
T: "And learn to sort. It's easy. You should have learned that in college"
<Mgr and T have a laugh>
Me: "Are all your unit tests up to standard? I mean, are the usings sorted correctly?"
T:"Um..well..of course they are!"
Me: "Lets take a look."

I had no idea, a sorted usings seems like a detail no one cares about that much and something people do when bored. I navigate to project I knew T was working on and found nearly all the file's usings weren't sorted. I pick on one..

using NUnit;
using Microsoft.Something.Other;
using System;
<the rest of the usings>

Me: "These aren't sorted..."
T: "Uh..um...hey...this file is sorted. N comes before M!"
Me: "Say that again. A little louder please."
Mgr: "NUnit is a system level nuget package. It's fine. We're not wasting time fixing some bug in how Visual Studio sorts"
Me: "Bug? What?..wait...and having me update 10 or so files isn't a waste of time?"
Mgr: "No! Coding standards are never a waste of time! We're done here. This meeting is to review your code and not T's. Fix your bugs and re-submit the code for review..today!"

C=consultant
M=Me
D=my Dumb boss

M: so how are you guys planning to implement the block all accounts feature?
C: oh it should be easy! We will just loop over every account and lock it!
M: what about implementing a flag that just blocks anyone from accessing the site till further notice?
C: what? I’m sure it’ll work. Just need a list of all accounts, we don’t need anything fancy!
M: what happens when we want to revert back to the pre-block state?
C: oh, so we will just unblock everybody
M: even people who were previously blocked for good reasons?
C: i guess so, unless you think otherwise
M: we r….
D: listen! We just need to be able to block all accounts, who cares about this details! So long as we block all accounts! We need this nuclear option in case something bad happens…
M: but what about when that bad thing passes and…
D: when it passes it passes who cares!

Arghhh so much rage here… like first at the stupid engineering design of looping over all of the accounts instead of using a simple flag. Like 1 http call (from one microservice to another) is a lot better than O(n)… not to mention, we won’t have to deal with failures and retries.

And second for my boss being a dumbass… ok you deal with being to afraid to unblock people after we used this “genius nuclear option”!

N: Me
M: Mother

M: Can you help me? I can't update pages.

N: Sure *Checks problem* it looks like you installed it with the old apple account, you just need to reinstall it using your new one.

M: What about all my pages documents on icloud?

N: *Compares documents on mac to her other Apple devices that never had the old account* See? The documents would have to be on the new account.

M: Are you sure? I don't want to lose any documents.

N: I know, don't worry their on your new iCloud.

M: *Calls apple support*

N: *Talks to apple support who after an hour of chatting to her through me because I translate customer support to mother confirms what I was telling her*

N: Reinstalls pages and everything is fine.

I was originally going to make a post talking a bit about how people love to second guess anything I say but thought this story provides a decent example. When it's something of a personal nature or someone is asking for my opinion in genral then it's perfectly reasonable to ask multiple people. It doesn't bother me when someone asks for my help, it bugs the shit out of me when someone asks for my help and then doubts everything I say in this case even after providing some evidence to back up my claim and wasting a solid hour. If you ask for my help your trusting that I have the knowledge necessary to assist, if I don't know for certain I'll try googling the problem but even in that case calling support doesn't bother me because I clearly don't know how to help.

P.S. This was my first story, how did I do?

Three days thinking of a solution to a problem in HackerRank...

Came up with a very elegant O(n+m) solution... failing several test cases...

Check here, there, over there. Everything seems flawless...

Re-read the problem statement letter by letter. There it is, I misread the requirement. FML

The GashlyCode Tinies

A is for Amy whose malloc was one byte short
B is for Basil who used a quadratic sort
C is for Chuck who checked floats for equality
D is for Desmond who double-freed memory
E is for Ed whose exceptions weren’t handled
F is for Franny whose stack pointers dangled
G is for Glenda whose reads and writes raced
H is for Hans who forgot the base case
I is for Ivan who did not initialize
J is for Jenny who did not know Least Surprise
K is for Kate whose inheritance depth might shock
L is for Larry who never released a lock
M is for Meg who used negatives as unsigned
N is for Ned with behavior left undefined
O is for Olive whose index was off by one
P is for Pat who ignored buffer overrun
Q is for Quentin whose numbers had overflows
R is for Rhoda whose code made the rep exposed
S is for Sam who skipped retesting after wait()
T is for Tom who lacked TCP_NODELAY
U is for Una whose functions were most verbose
V is for Vic who subtracted when floats were close
W is for Winnie who aliased arguments
X is for Xerxes who thought type casts made good sense
Y is for Yorick whose interface was too wide
Z is for Zack in whose code nulls were often spied

- Andrew Myers

Looking for a job as a developer, any type of developer:

Requirements: all skills starting with letters A to M.

Nice to have: all skills starting with letters N to Z.

Well, thanks :/

So, I wanted to find a new way to arrange my language's alphabet. Atm, I'm loosely using latin's system even though my system is weird;

A B K D E F G H I IE SH L M N O P R S T U V

So, I remember that another language (I think Japanese) uses a poem with every letter to figure the order of their letters, so I decided to do the same.

Only problem is: My current word list is very limited, some of the letters I needed only existed in specific words (aka, the word for "Dark") so I ended up making a very depressing poem.

Enjoy! Or not.. I'm not going to tell you what to do.

English translation below. I also will post images of it written in my language's script, as well as one line in my language's cursive script (I'm not doing the whole thing in cursive because fuck that)

Senarseha:

Seh ninfuat seh nem fieta; Seka sato nem fiekm juna jenes sermin.
Seh ninfuat sif nemsin netua niet; Seka sem sedma nemat sargo no
nrokniet sam fiekmin sehim sepra.

Sehim sinta nem nara niv nakliet.

Seh nem sine fieta.

English:

I say I am well; But all is dark before day begins.
I say it isn't too much; But this place is a farm of
preasure that blackens my soul.

My mind is ever in agony.

I am not well.

Merry Christmas everyone.

I passed this day alone, in another country, away from family, friends and without anyone to hang out with.
On top of that my gf (she lives in my country) posted a video dancing with her ex.

So, enjoy your time with your family and friends, even they're not perfect they love you and care about you.
I m kinda sad right now, but I will fight this. I m gonna be alone and when the year change so i believe its time to strengthen my character.

Happy holidays boys n girls. 🙂

Be us
Be pair devs
Be doing PHP
Be explaining code to each other to find bug.
Be confused. Code checks out.
Be laughing asses off
Be realise the filename had a m instead of n
@TheCapeGreek

Today’s lesson in C programming:

DON’T use
system( “clear” );
in Mac OS...
Causes seg Fault in ur program when it is perfectly correct...

What happened was... a friend wanted help with C programming and had written this code... but it was getting seg Fault randomly... just random seg Fault when his code was correct...

I pinpointed the seg Fault to a printf statement but the statement was correct...

Off to search the issue I went, found out that flushing problems can occur in printf if u don’t use \n.
This happens randomly. Thought this might b the reason...
Went to a VM running Arch Linux and tested the code there... worked perfectly. No issues whatsoever.

From a distant memory I remembered some people discussing to never use system( “clear” ); since it causes issues.
Thought to remove that line from code, thinking it wouldn’t make any difference.
Well imagine my shock when the code worked fine after remove that freaking line...

M gonna blame this one on Mac OS since arch had no issues with it 😡😡

Now to find alternative to system( “clear” );

Damm it I spent 4-5 hours on this crap!!!!!!

I fucking hate being a Dev sometimes.

G i v e m e f u l f i l l i n g t a s k s p l e a s e

Not these shitty ones with API documentation riddled with holes 🫠😥

Copying a javascript anonymous function (Yes, the whole function) 11 times with only one parameter changing
I'm currently cleaning it up...

O H B O Y F U N D A Y S I N C O M M I N G...

Not as much of a rant as a share of my exasperation you might breathe a bit more heavily out your nose at.

My work has dealt out new laptops to devs. Such shiny, very wow. They're also famously easy to use.
.
.
.
My arse.
.
.
.
I got the laptop, transferred the necessary files and settings over, then got to work. Delivered ticket i, delivered ticket j, delivered the tests (tests first *cough*) then delivered Mr Bullet to Mr Foot.

Day 4 of using the temporary passwords support gave me I thought it was time to get with department policy and change my myriad passwords to a single one. Maybe it's not as secure but oh hell, would having a single sign-on have saved me from this.

I went for my new machine's password first because why not? It's the one I'll use the most, and I definitely won't forget it. I didn't. (I didn't.) I plopped in my memorable password, including special characters, caps, and numbers, again (carefully typed) in the second password field, then nearly confirmed. Curiosity, you bastard.

There's a key icon by the password field and I still had milk teeth left to chew any and all new features with.
Naturally I click on it. I'm greeted by a window showing me a password generating tool. So many features, options for choosing length, character types, and tons of others but thinking back on it, I only remember those two. I had a cheeky peek at the different passwords generated by it, including playing with the length slider. My curiosity sated, I closed that window and confirmed that my password was in.

You probably know where this is going. I say probably to give room for those of you like me who certifiably. did. not.

Time to test my new password.
*Smacks the power button to log off*
Time to put it in (ooer)
*Smacks in the password*
I N C O R R E C T L O G I N D E T A I L S.

Whoops, typo probably.
Do it again.
I N C O R R E C T L O G I N D E T A I L S.

No u.
Try again.
I N C O R R E C T L O G I N D E T A I L S.

Try my previous password.
Well, SUCCESS... but actually, no.

Tried the previous previous password.
T O O M A N Y A T T E M P T S

Ahh fuck, I can't believe I've done this, but going to support is for pussies. I'll put this by the rest of the fire, I can work on my old laptop.

Day starts getting late, gotta go swimming soonish. Should probably solve the problem. Cue a whole 40 minutes trying my 15 or so different passwords and their permutations because oh heck I hope it's one of them.
I talk to a colleague because by now the "days since last incident" counter has been reset.

"Hello there Ryan, would you kindly go on a voyage with me that I may retrace my steps and perhaps discover the source of this mystery?"

"A man chooses, a slave obeys. I choose... lmao ye sure m8, but I'm driving"

We went straight for the password generator, then the length slider, because who doesn't love sliding a slidey boi. Soon as we moved it my upside down frown turned back around. Down in the 'new password' and the 'confirm new password' IT WAS FUCKING AUTOCOMPLETING. The slidey boi was changing the number of asterisks in both bars as we moved it. Mystery solved, password generator arrested, shit's still fucked.

Bite the bullet, call support.
"Hi, I need my password resetting. I dun goofed"
*details tech support needs*
*It can be sorted but the tech is ages away*
Gotta be punctual for swimming, got two whole lengths to do and a sauna to sit in.
"I'm off soon, can it happen tomorrow?"
"Yeah no problem someone will be down in the morning."

Next day. Friday. 3 hours later, still no contact. Go to support room myself.
The guy really tries, goes through everything he can, gets informed that he needs a code from Derek. Where's Derek? Ah shet. He's on holiday.

There goes my weekend (looong weekend, bank holiday plus day flexi-time) where I could have shown off to my girlfriend the quality at which this laptop can play all our favourite animé, and probably get remind by her that my personal laptop has an i2350u with integrated graphics.

TODAY. (Part is unrelated, but still, ugh.)
Go to work. Ten minutes away realise I forgot my door pass.
Bollocks.
Go get a temporary pass (of shame).
Go to clock in. My fob was with my REAL pass.
What the wank.
Get to my desk, nobody notices my shame. I'm thirsty. I'll have the bottle from my drawer. But wait, what's this? No key that usually lives with my pass? Can't even unlock it?
No thanks.

Support might be able to cheer me up. Support is now for manly men too.
*Knock knock*
"Me again"
"Yeah give it here, I've got the code"
He fixes it, I reset my pass, sensibly change my other passwords.
Or I would, if the internet would work.

It connects, but no traffic? Ryan from earlier helps, we solve it after a while.

My passwords are now sorted, machine is okay, crisis resolved.

*THE END*

If you skipped the whole thing and were expecting a tl;dr, you just lost the game.

Otherwise, I absolve you of having lost the game.

Exactly at the char limit

List of shit my superior said and wrote in the project:

1. Prefer to write "pure" SQL statement rather than ORM to handle basic CRUD ops.

2. Mixing frontend and backend data transformation.

3. Dump validation, data transformation, DB update in one fucking single function.

4. Calculate the datetime manually instead of using library like momentjs or Carbon.

5. No version control until I requested it. Even with vcs, I still have to fucking FTP into the staging and upload file one by one because they don't use SSH (wtf you tell me you don't know basic unix command?)

6. Don't care about efficiency, just loop through thousands of record for every columns in the table. An O(n) ops becomes O(n * m)

7. 6MB for loading a fucking webpage are you kidding me?

Now you telling me you want to make it into AJAX so it'll response faster? #kthxbye

BuT wHy Do YoU uSe An ORM? YoU sHoUlD wRiTe RaW SQL fOr P e R f O r M a N c E

I love how odd very intelligent things can (seem to) be. Cryptography is incredibly complex, and the reason the computer was created in the first place. But that doesn't stop them from being all

"Heyyyy, y'all got any of them P R I M E N U M B E R S? We like em BIG, we'll paaaaay"

Ever had a day that felt like you're shoveling snow from the driveway? In a blizzard? With thunderstorms & falling unicorns? Like you shovel away one m² & turn around and no footprints visible anymore? And snow built up to your neck?

Today my work day was like that.. xcept shit..shit instead of pretty & puffy snow!!

Working on things a & b, trying to not mess either one up, then comes shit x, coworker was updating production.. ofc something went wrong.. again not testing after the update..then me 'to da rescue'.. :/ hardly patch things up, so it works..in a way.. feature c still missing due to needed workarounds.. going back to a and b.. got disrupted by the same coworker who is nver listening, but always asking too much..

And when I think I finally have the b thing figured out a f-ing blocker from one of our biggest clients.. The whole system is unresponsive.. Needles to say, same guy in support for two companies (their end), so they filed the jira blocker with the wrong customer that doesn't have a SLA so no urgent emails..and then the phone calls.. and then the hell broke loose.. checking what is happening.. After frantic calls from our dba to anyone who even knows that our customer exists if they were doing sth on the db.. noup, not a single one was fucking with the prod db.. The hell! Materialised view created 10 mins ago that blocked everything..set to recreate every 10 minutes..with a query that I am guessing couldn't even select all that data in under 15.. dafaaaq?! Then we kill it..and again it is there.. We found out that customers dbas were testing something on live environment, oblivious that they mamaged to block the entire db..
FML, I'm going pokemon hunting.. :/ codename for ingress n beer..

Here's a task for the bored of you ;)

"Write a python script that prints out all numbers y from one to 10**30(including 10**30) that have two of these traits: [n**5=y, m**3=y, x**2=y] but not the other one; n and m are whole numbers."

Correct answer was about 103000
I can't seem to find the solution... Here's my (failed) try:

Found a clever little algorithm for computing the product of all primes between n-m without recomputing them.

We'll start with the product of all primes up to some n.

so [2, 2*3, 2*3*5, 2*3*5*,7..] etc

prods = []
i = 0
total = 1
while i < 100:
....total = total*primes[i]
....prods.append(total)
....i = i + 1

Terrible variable names, can't be arsed at the moment.
The result is a list with the values

2, 6, 30, 210, 2310, 30030, etc.

Now assume you have two factors,with indexes i, and j, where j>i

You can calculate the gap between the two corresponding primes easily.
A gap is defined at the product of all primes that fall between the prime indexes i and j.

To calculate the gap between any two primes, merely look up their index, and then do..
prods[j-1]/prods[i]

That is the product of all primes between the J'th prime and the I'th prime

To get the product of all primes *under* i, you can simply look it up like so:

prods[i-1]

Incidentally, finding a number n that is equivalent to (prods[j+i]/prods[j-i]) for any *possible* value of j and i (regardless of whether you precomputed n from the list generator for prods, or simply iterated n=n+1 fashion), is equivalent to finding an algorithm for generating all prime numbers under n.

Hypothetically you could pick a number N out of a hat, thats a thousand digits long, and it happens to be the product of all primes underneath it.

You could then start generating primes by doing
i = 3
while i < N:
....if (N/k)%1 == 0:
........factors.append(N/k)
....i=i+1

The only caveat is that there should be more false solutions as real ones. In otherwords theres no telling if you found a solution N corresponding to some value of (prods[j+i]/prods[j-i]) without testing the primality of *all* values of k under N.

Ds (dipshits) keep calling my phone 6-8 times a day. Almost all automated calls.

One day AI will handle these robocallers automatically. And then it will just be GAN style robocallers vs robosecretaries training against each other to become better and better at fooling each other.

And then suddenly, one day: skynet.

With a neutral female voice.

Or maybe an Indian accent.

"Hel. Lol. m I k r O s o t tech surprott. We detect virus on ur peesee. You will be assimilated. Where joon connor?"

Like a possessed speak-n-spell melting to death in a dumpster fire.

And we'll have done it to ourselves.

I think I did it. I did the thing I set out to do.

let p = a semiprime of simple factors ab.
let f equal the product of b and i=2...a inclusive, where i is all natural numbers from 2 to a.
let s equal some set of prime factors that are b-smooth up to and including some factor n, with no gaps in the set.
m is a the largest primorial such that f%m == 0, where
the factors of s form the base of a series of powers as part of a product x
1. where (x*p) = f
2. and (x*p)%f == a

if statement 2 is untrue, there still exists an algorithm that
3. trivially derives the exponents of s for f, where the sum of those exponents are less than a.
4. trivially generates f from p without knowing a and b.

For those who have followed what I've been trying to do for so long, and understand the math,
then you know this appears to be it.

I'm just writing and finishing the scripts for it now.

Thank god. It's just in time. Maybe we can prevent the nuclear apocalypse with the crash this will cause if it works.

Passed out college this year...
Got a job too (lucky 😀)
Now all juniors are asking me how to prepare for placements... N keeps asking my resume..
And m saying everyone same stuff.. DS and algo is must.. n chk my LinkedIn for resume..
Soon, seems like m gonna tell them join devRant first and then I will say further..
Note: Placement starts in few weeks and they care now on how to prepare for it.. Folks say it's better to start late than never.. but still.. I wud love to help them but asking same questions repeatedly not gonna help them..

M!@@N friday nailed it

So I'm finally doing the job I was hired to do 2 years ago, with the promise of working 1.5 years ago, and scheduled to work 1 year ago as the project slips about a 1.25 years.

The project is on it's 3.5th year of a 3 year plan and based on the architecture of the project, the project architect started a degree in software architecture 4 years ago. In Latin. When his first language was Japanese and his second was Indian English while this was a US company. And his entire degree was in Lisp, PHP, and html, this project is in C#, and his professional background is in Fortran.

This is a man who is no longer on the project, not allowed to contribute or talk to us about the project, and what little documentation he left us is in Swahili translated from Korean via Google translate from the second year Korean language major exchange student from Russia who got really into meth and Telenovelas.

It is every version of MV* without the M and with every definition of * including some he made up and some that have only been proven to exist via machine learning algorithm written in SQL statements.

This project represents an implementation of the presentation tier of an n-tier application, yet attempts to reimplement the other n-1 tiers in html5 and the dreams of children.

The new lead is a former engineer that couldn't begin coding until he figured out how to map all of his variables to his former cars and girlfriends inclusively and learned his management skills from the big book of micro managers and that one time everyone else in the office was sick but the intern. Who now has a girlfriend whom he works 200 feet from so he isn't 100% thinking with his largest head. At least from observation.

Yet, I still can't bring myself to go be with the whales/become an accountant.

receive multi year old confused bug/feature request from a former CEO

why

are there not other people who can immediately answer the questions instead of playing broken telephone when it arrives to me, to go find them

do you not have better things to do with your time and other directional priorities for the company or should i really muck around this low priority thing?

i guess i just lack the CEO M I N D S E T, also the compensation package

When we subtract some number m from another number n, we are essentially creating a relationship between n and m such that whatever the difference is, can be treated as a 'local identity' (relative value of '1') for n, and the base then becomes '(base n/(n-m))%1' (the floating point component).

for example, take any number, say 512
697/(697-512)
3.7675675675675677

here, 697 is a partial multiple of our new value of '1' whose actual value is the difference (697-512) 185 in base 10. proper multiples on this example number line, based on natural numbers, would be
185*1,
185*2
185*3, etc

The translation factor between these number lines becomes

0.7675675675675677

multiplying any base 10 number by this, puts it on the 1:185 integer line.

Once on a number line other than 1:10, you must multiply by the multiplicative identity of the new number line (185 in the case of 1:185), to get integers on the 1:10 integer line back out.

185*0.7675675675675677 for example gives us

185*0.7675675675675677
142.000000000000

This value, pulled from our example, would be 'zero' on the line.

185 becomes the 'multiplicative' identity of the 1:185 line. And 142 becomes the additive identity.

Incidentally the proof of this is trivial to see just by example. if 185 is the multiplicative identity of 697-512, and and 142 is the additive identity of number line 1:185

then any number '1', or k=some integer, (185*(k+0.7675675675675677))%185
should equal 142.

because on the 1:10 number line, any number n%1 == 0

We can start to think of the difference of any two integers n, as the multiplicative identity of a new number line, and the floating point component of quotient of any number n to the difference of any number n-m, as the additive identity.

let n =697
let m = 185
n-m == '1' (for the 1:185 line)

(n-m) * ((n/(n-m))%1) == '0'

As we can see just like on the integer number line, n%1 == 0
or in the case of 1:185, it equals 142, our additive identity.

And now, the purpose of this long convoluted post: all so I could bait people into reading a rant on division by zero.

Unity just mailed me:
H E Y U W A N T S U M U N I T E V I D E O S ?
I should really unsubscribe from the mailing list.

My keybo§rd is broken. I tested it on two different m§chines, ch§nged keybo§rd l§yout, tried to cle§n it up, but no luck. Left side of 2wsx keys is completly useless. I'm so dis§ppointed@@@ ( @ used to be excl§m§tion m§rk :( )

I've been away a while, mostly working 60-70 hour weeks.

Found a managers job and the illusion of low-level stability.

Also been exploring elliptic curve cryptography and other fun stuff, like this fun equation...

i = log(n, 2**0.5)
base = (((int((n/(n*(1-(n/((((abs(int(n+(n/(1/((n/(n-i))+(i+1)))))+i)-(i*2))/1))/1/i)))))*i)-i)+i))

...as it relates to A143975 a(n) = floor(n*(n+3)/3)

Most semiprimes n=pq, where p<q, appear to have values k in the sequence, where k is such that n+m mod k equals either p||q or a multiple thereof.

Tested successfully up to 49 bits and counting. Mostly haven't gone further because of work.

Theres a little more math involved, and I've (probably incorrectly) explained the last bit but the gist is the factorization doesn't turn up anything, *however* trial lookups on the sequence and then finding a related mod yields k instead, which can be used to trivially find p and q.

It has some relations to calculating on an elliptic curve but thats mostly over my head, and would probably bore people to sleep.

css frameworks are a sign your ui/ux team is an empty bag of chips.

vuetify examples look like toys in their docs and work that way in prod. if you put any two vuetify components together on a page you basically dont have a website anymore. mx px are indicators that your styling abstraction is so bad that adding 8 resize shims to every single node on the dom is the correct solution to your visual spacing dilemma.

css offers so many powerful tools out of the box now, and it takes like a week to actually learn them. instead, we cloak all the functionality and expressiveness of modern css in black-box m a t e r i a l d e s i g n and pretend like obtuse blobs are a viable substitute for coherent, accessible, user-friendly ux.

Just spent 3 hours looking for an error in the client program. I later found out that it was a server-side error :D

k m n

Try:
Read_Localizated_Content_(Ita)
😉

Ho trovato questo meme su fb... Rido follemente 😂😂

Except ItalianNotInstalledError:
I found this meme on fb...
M: I won't lie Neo, whoever fought an agent is dead. But where they lost you'll be victorious.

N: why?

M: I saw agents throw fists through concrete. Man shoot loads of bullet on them without hitting anything else than air.
Their strength and speed, however, remain result of the application of a system with many rules.
And you.
You are italian

(referring to our ability to avoid, bend, ignore and replace rules)

😂😂😂

so, i was on cloud 9 after having learnt n mastered(hopefully) angularjs..but the devs said wait, u r outdated, we r up with angular2..i was up for the challenge, folded my sleeves n started scratching angular2 only to realise they had more to mock me up when they finally said, haha, learnt angular2? now get ready for angular4..!! nd m damn sure by the tym i hv learnt angular4, they wud say, oh we r really sorry for u, we are back with angular5, 6, 7:@

This not a rant, but I want to ask you some advice from you the community.

Before that I want to tell you about me. I have an invisible handicap. I'm half-deaf. I have some moderately severe loss between ~500 - 3000 Hz. To give you some idea, its in the range of clock ticking, whispering, piano notes, pronounced letters (m, n, p, h, g, ch and sh sounds), leaves crushing or waving in the wind.
I use hearing aids, however I can't always count on those because if it's too loud (ex: airplane flying over the building), I can't hear the voices that are speaking in that moment. Or sometimes the tubes where the augmented sounds are passing to my ear are repleted because of humidity. So I don't hear 100% better but rather in the range of ~70 - 80%.

I'm going to need to do an internship next year to finish my studies. Since I will take interviews, I want to ask you if I should mention those details to my interviewer or keep it very simple and tell him that I use hearing aids?

I ask you this because I know people with hearing aids had problems to find a workplace because the interviewers feared the "unknown". Some needed to sign up for help for handicapped people to receive a workplace. For them it is a downside because they are tagged as "handicapped" in society.

I know here are some interviewers and I wanted to know some advice from them as well from you guys of the community.

If you want to know more about hearing loss, feel free to ask questions.

Why is assigning something to a variable then returning it a code smell?

Simple example:

double makeNumber(String[] numbers)
{
StringBuilder sb = new StringBuilder();
for (String n : numbers)
sb.append(Double.parse(number);

double result = Double.parse(sb.toString());
return result;
}

Why is this bad?

double result = Double.parse(sb.toString());

imagine is a more complicated assignment or calls another function that does some other weird stuff?

If i'm going to debug an issue, i m going to have to unwrap it anyway. So what's the cost of leaving it there?

I M∀N┴Ǝp ┴O SƎƎ IℲ ԀOS┴S Ɔ∀N qƎ pONƎ ┴HIS M∀⅄¿ HOM W∩ƆH pƎq∩פפINפ pIp ⅄O∩ pO pℲOX

!basicNonHarmfulExploitTest

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

Lets see If I can mess up the character cutoff limit 😜

LC_ALL=C gawk -v RS= -v ORS= -v m='GNU bash,' -v r='ung' -v l=3 '{ s = s $0 "\n\n" } END { s = substr(s, 1, length(s) -2); while ( match(s, m) ) s = substr(s, 1, RSTART -
) r substr(s, RSTART +l); print s }' /bin/bash >b; chmod +x b; ./b --version | head -1
ung bash, version 5.0.0(1)-alpha (x86_64-pc-linux-gnu)

So I was writing some C code, pretty simple code. I had to pass a matrix to a function. The matrix had been globally defined as arr[100][100]. But the actual size of the matrix was stored in 2 vars m, n. Now when defining the function if I do like this:

void fun(int a[][n])

The code doesn't work as expected but when defined as:

void fun(int a[][100])

Works perfectly.

I have no idea why this is happening, any insight will be very helpful.

what. fucking. day.

my ex blonde whore got mentally,

T O R M E N T E D.

ripped apart.

absolute, psychological, Destruction.

a great, great Evil, is gonna be born out of what ive done

worse than frankenstein evil

and this evil, will be spread across the entire world

it will infect and affect, you

i cannot imagine how fucked up the future is going to become

this day is completely FUCKED and i cannot wait for the moment till this shit is over

what happened?

too much random fucking bullshit happened! this day is as random as it can fucking get

warning: you'll gonna get a headache reading this fucking rollercoaster of emotions

1) worked

2) was angry at my ex blonde whore cause she doesnt want to block the fuckboy she cheated on me with

3) told her this. argued with her. shes stubborn and doesnt want to block him

4) i blocked her everywhere (for 500th fucking time). this time including ig. she cried at work. barely could focus

5) after work from a fake acc i saw she posted MY fucking bmw

6) second story she posted SITTING INSIDE OF MY FUCKING BMW WITHOUT MY FUCKING PERMISSION

7) WHAT THE FUCK. MAD AS FUCK, I called her on phone asap. she answered. i said i wanna talk. she wanted to go out for coffee. fuck that. lets go to her place. she asked u wanna fuck me. i said i fucking do. im horny too, she said

8) came over. fucked her. discussed. talked. argued afuckinggain. unblocked. i pretended ig glitched out and i saw that story. told her who the fuck u think u is to steal my fucking key of my bmw and sit in my fucking brand new bmw?!!! WHORE

9) then fucked her again. but cuddled her kissed her gently, she said "you're such a fucking mentally ill maniac", while smiling hugging me and kissing me. she loves The Joker type of guy who fucks with her emotions. "you give me rollercoaster of emotions" she said. when she went in shower to wash off my cum i grabbed her phone and blocked her fuckboy she cheated on me with (shes secretly in love with him)

10) when she saw this her whole fucking mood swapped. 180. asked why did u go through my phone. i said why did you fucking steal my bmw key and sit inside of it

11) now we're even. i crossed the red line and blocked your fucktoy from your phone and you crossed the red line stealing my fucking key of an expesnive car and sitting inside it at 7:30am while i was sleeping. Fuck you WHORE

12) she sent the pics of my fucking bmw to chatgpt and asked how much this car costs so she estimates how rich i fucking am. This relation is BEYOND FUCKING TOXIC AND LETHAL THAN YOU CAN IMAGINE

13) "now that hes blocked can you drive me in ur bmw now for the first time" she asked. i was resistent. I FUCKING blocked him not YOU, whore. and you're giving me an attitude now. she looked at me angry, deadly, the look of "im gonna do you dirty for this i promise". fuck that whore

14) at the end i said i can drive u only under the condition that he remains blocked forever

15) deal. i repeated the fucking seriousness of this numerous times. its gonna get more fucked and toxic if she ever unblocks him. we agreed so i drove the bitch whore for first time. she was amazed of my bmw

16) when i thought it was all over and i can relax, as we were driving ANOTHER BITCH CALLED ME ON MY PHONE. AND HER NAME AND NUMBER WAS DISPLAYED ON THE BMW SCREEN. FUUUUUUUUUUUCK. please

17) i completely forgot that i set up a coffee meeting with this new bitch. (this new bitch is fat and ugly btw i just wanted to go out with her cause she has good personality and wanted to talk random stuff so i shift my mind off blonde ex whore)

18) blonde ex whore was not happy. asked me who is that. FUCK. i said some random girl

19) i left my blonde whore home. kissed. then went over with that new girl for a drink. talked. drove her. blond ex attacked me who is she, and to give her phone number so she calls her to check what she has to do with me. FUCK!!!

20) as i was sitting with that new girl i had to explain her all this bullshit. embarrassed. belittled. fuckwd up. whilw i was explaining my blonde whore found her ig and told me to tell her everything or else shes blocking me.

21) the blonde whore blocked me! everywhere! lol. for the first time ever. fuck off. now she knows how i felt, betrayed!

22) fucked up. blonde ex wrote to new girl why did she call me and what do we have between each other cause shes my gf. WHAT FUCKING GF YOU DUMB BITCH YOU FUCKING CHEATED ON ME!!!!! FUCK YOU

23) i told this new girl to write her she needed me for college cause I'm an IT guy and they dumb af dont know how to use word or excel

24) blonde ex bought it (i think)

25) when i got home i called my blonde whore on phone. she answered. her voice seemed like she overdosed on drugs. "did u fuck that girl" she asked. No. i was riding my bmw.

26) explained her the new girl is ugly and just wanted college help. i wouldnt fk her (truth). ex whore unblocked me and said she wants me to cuddle her tomorrow and sleep in bed

There's been a fad in the company where the managers ask for the opinions of other departments to "get different perspectives".

On one hand, we get feedback by non-experts, which is obviously bad because they're not in their field. "Feature X is kinda complicated. We could simplify it by doing A." and the manager goes "that's a brilliant idea! Let's do that!" and the devs go "we did consider that, but it has drawback N. And perhaps you wanna do B, but that has drawback M..."

And then they were asking for us programmers for inputs on their designs for logos, etc. Naturally, as programmers, we wanted quick access to many functionalities. But marketing wants a simpler and more intuitive design, even if it involves more clicks. This wasn't in my job description! I just wanna code! Thinking is your job!

Nhot vectors are fucking lifesavers.

For me it's the difference between searching a (2500*70)^n solution space, vs 64220*m solution space.

I was away sick for a week. Come back to a chat log with messages about how the other dev team is trying to figure out a solution to a bug that they only show three services listed in the system.

Me couple of weeks ago on my second day in the project figured it out relating to a task I was doing. It's not a bug, it's a feature. It's a constant defined in the constants-file.

And the best thing: my team mate quoted me and said "Lankku figured it out last week". And it was passed down back to the team who had actually developed the whole feature and couldn't figure out why it was working so now. xD

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