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3:06 PM 05/16/2020
you should find the passkey, 5 positive integers less than 2**31 given space separated as input
erfan on 4:58 AM 06/09/2020: Wow no one has solved it yet! As a hint, this code calculates xor basis, So write a similar code, compile it and compare it to this one to find out what else this one does https://codeforces.com/blog/entry/68953
jeffli6789 on 11:31 AM 06/12/2020: An interesting algorithm! Its complex if only analyzed statically. But debugging helps me out. Thx!