hacker.org

I wasn't expecting to get stuck in this challenge, since it seems fairly easy, but... here I am. I'm using Postman to test my API, and it seems to work perfectly, then i submitthe challenge and suddenly it doesn't execute the code. The request arrives, but it seems to stop for no apparent reason (I ...

Alright, before I go on with my comment here, it's best I do a little prologue. This challenge is my nemesis. I love math, always have, and I started tackling this challenge for the first time when I was around 16/17 years old (more or less when I created my account here). From there on I started do...

Kilo wrote:

D.A. wrote:

Grand_Master wrote: I fourth that

I fifth that

I sixth that

I seventh... this?

I produced a .java file with that, fixed it in some parts and then recompiled/executed

i have a problem too, my decrypred string arrived at the last "A" looks like:

"ithe answer is _______".

I'm not sure what I've done wrong but I have that "i" and I don't know how to get rid of it

I did the easy part too. I thought "Oh well, let's remove all the junk code and let's see if it works."
It worked, it compiled, it produced a number... but it's not the correct one. Maybe I don't see well what should i do in relation to "the future"

I was sure I had a script capable of dealing with all the possible subsequences of a limited portion of pi... but it doesn't. I rote it in Python, can I PM someone to let him/her control my script?

I transformed D(n) in something not-recursive. Am I on the right path? Can I do the same with N(n)? I can't find a pattern...

I can't find it on 15th May 2007, only 19th May 2007... Is that the cause of the uncorrect answer?

EDIT: did it, had to look... elsewhere

I've rewritten it in PHp to read it better (I'm more familiar with it). So I have: <?php function bucketFromRandom($randomNumber) { $a = array(); for ($i = 0; $i < 10; $i++) $a[$i] = $i * $randomNumber; $index = abs($randomNumber) % 10; return $a[$index]; } echo bucketFromRandom(2147483648); ?> Will...

I wrote a PHP script that gets the content of the page, gets only the right message w/out FOOs and redirects to the page... but everytime it says it's incorrect. why???

I still do'n know why, maybe the redirect changed the words? bah, nevermind... done via javascript

Oh, now I get it, I've made a mistake in the understanding of the moment of the reproduction. Done

I have a problem, i'm doing this w/ PHP, like about every other challenge. My script does the following: for every char of the string, it converts in base 2 (binary) and xores it with 79 in base 2, then converts the result in base 16 and concatenates them. It gives me a string (27112711274e2710274f2...

I thought the image could not only be an image, i opened w/ VLC, i converted to a zip, i looked at it in the notepad, maybe in the code of the image there was a "your answer is: blahblahblah"... but nothing...

I searched for a descartes cipher, but i found nothing. The olny thing i found was: “Perfect apple numbers bananas are cherry like date perfect elderberry men fig. They gooseberry are huckleberry very kiwifruit rare lemons." It's a quotation from himself, if you take away the fruits you get: &q...