helloworld = lordhowell
Two solutions for printing a version of "hello world" in as unreadable a way as I could in a few hours of messing around. Done for a mixed-skill level fun coding challenge at work, mostly just to traumatize and amaze the younger devs.
I wrote a program to find a random seed that gave me a sequence of numbers that had relative-to-each-other offsets that could align very roughly to "hello world" then did some pinpoint UTF-8 character code adjustments and injections to finish it off. Brute force finding the seed took the better part of 4 days fully pegging an AMD 2700x processor. I'm particularly proud of that one as it's almost provably impossible to "guess" what it will print without running it. It's very slow to start as it has to generate and discard about 12 million numbers with Python's PRNG before it arrives at the sequence it needs.
Built to hedge my bets against the PRNG search not hitting a satisfactory sequence in time, I used Wolfram Alpha to find a polynomial that corresponded to the delta between each consecutive ASCII value of the letters, centered around 0.
This one's more discoverable and it just looks like a polynomial, so I added some more confusion for the junior devs by putting C code in a shell script and compiling it on the fly.
A couple of dumb tricks there - file handle 1 on x86 hardware is stdout, so I just wrote to that instead of using printf. Also I populate an array as a red herring with values from 1 to 11, then the value of ! and \n, then overwrite that array with the output of the polynomial, using the input value as the X variable.