homework

I'm one of the first 100 people who solved this challenge. It took me 17 hours to solve. At that time, I had just started doing binary exploitation for 2 months.

This challenge has so many layers, it definitely deserves a full writeup."

Solution

00g0!:++:::+:+\0!:+:v
00000vp00:++:!0::p\+<
00000>\g,:00g0!+v0000
00000^<<<<<<p00:<0000