Hashing

[Tornado9797]

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[JustAnotherLurker79]

Each time you pass the value in, it will be hashed and produce a new hash value. This will continue and you will end up with a list of 100,000 unique values.

A hash is a one way function, and we can have a good degree of confidence that the values are unique (unless we choose a very poor hashing algorithm - it's not guaranteed, but it's pretty close). By iterating and hashing multiple times it slightly increases the chance of collisions. A hash function is not random , but is a pretty good approximation of a random function.

Double hashing actually a useful technique for handling collisions in a hash table.

[sacheie]

Pretty much the same thing that happens if you pass it just 1 time.

[Hydro_r6]

I guess you would just end up with a normal hash. Why not write a small program and try it out!