Tags: befuddled misc
Rating:
solver: Pr0f3550rZak
writeup-writer: L3d
Author: doubledelete
Description:
it seems yall enjoyed the befunge challenges, here's more
i've been doing a little too much code golf recently...
files (copy): befunge.py, challenge.py
In this challenge we receive a befunge compiler, with the Flag in the top of the stack.
We need to write befunge code under some restrictions, and get the flag.
Before starting to tackle this challenge, we need to know firstly what is Befunge.
Befunge is a two-dimensional esoteric programming language invented in 1993 by Chris Pressey with the goal of being as difficult to compile as possible. The code is laid out on a two-dimensional grid of instructions, and execution can proceed in any direction of that grid - we can see this being implemented in the source file.[1]
In this challenge we are asked to input the Befunge code to be compile, with a limit for 16 characters.
After a quick glace of the syntax, we find how to create a loop, and pop the stack. This is the result:
>,<
> - means increment program counter.
, - means pop the stack.
< - decrement program counter.
And we get the flag: wctf{my_s0lv3_l00k5_l1k3_4_cut3_f4c3_>,<}.
To the next one ➡️
