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Verse

Description:

My favorite Fortnite creator said he made an unwinnable island, but some source code for the island accidentally got leaked... Can you help me be the first to beat it?

[verse.verse]

Writeup

The non-obfuscated version can be found at og.verse. The setup for the island has 480 switch devices which essentially function as "bits". This code loops through all 480 switch devices and makes an array of booleans (called "logics") with false if the switch is not on and true if it is. Then, an array of tuples is looped through; each tuple has 2 digits, and these represent 2 bits that need to be exchanged with each other. For example, [(1,2), (3,4)] mean that bits 1 and 2 need to be exchanged, and 3 and 4 need to be exchanged. Then, another array contains what the array should look like after exchanging bits (but backwards).

The solve is automated in solve.py.

Flag - byuctf{this_language_is_supposed_to_be_beginner-friendly???}