DMOJ Capture The Flag '20 R4 - Python Cycles

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Points: 12
Time limit: 0.5s
Memory limit: 128M

Problem type
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Ada, Assembly, Awk, Brain****, C, C#, C++, COBOL, CommonLisp, D, Dart, F#, Forth, Fortran, Go, Groovy, Haskell, Intercal, Java, JS, Kotlin, Lisp, Lua, Nim, ObjC, OCaml, Octave, Pascal, Perl, PHP, Pike, Prolog, Python, Racket, Ruby, Rust, Scala, Scheme, Sed, Swift, TCL, Text, Turing, VB, Zig

I heard that XOR and substitution ciphers were both pretty safe, so I decided to combine them together.

main.cpython-38.pyc a3bbb25109e0508cab8e0f116e11bdcb 3K

Hint: I also heard that python-uncompyle6 was pretty good for decompiling bytecode.

This problem is from DMOJ Capture The Flag '20. For more details, please view the contest page.


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