ID NAME QUALITY USERS ACC % DIFFICULTY C I
28308 Ada and Spring Cleaning   51 1240
18
17
32577 Ada and Terramorphing   10 230
31
23
37420 Anti Hash   3 31
42
42
40643 The Revenge Of Anti Hash   1 4
34
34
36671 Bipartite Permutation (Hard)   6 51
32
34
36946 March Of The King   2 13
42
42
40148 Distinct Cyclings   8
34
34
41374 Digit Shifts   12
34
17
29 Hash it!   14 3538
14
8
36667 Solution to all the problems   12 141
15
10
17150 Palin Square   6 108
21
30
27498 Votka and String   3 76
21
12

#hashing

The problem involves cryptographic hash function, checksum or the like

https://en.wikipedia.org/wiki/Hash_function https://en.wikipedia.org/wiki/Cryptographic_hash_function https://en.wikipedia.org/wiki/Checksum https://en.wikipedia.org/wiki/Hash_table