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Old 2019-03-30, 15:20   #1
Alberico Lepore
Alberico Lepore's Avatar
May 2017

48210 Posts
Default Pastime Game

Hello group
I had thought since I have two hours available why not play with other people?
The game consists of creating with the contribution of the various participants a pseudo-random number generator in a certain range 0-r.

We can start for example from here:
Given a pair of fairly large numbers (N, n) where N is odd and is such that N = p ^ 2 + n * p where p is a factor of N
Given a number A, such that (x + n * A) * (x + n * (A + 1)) = N with negative x
Take x as an absolute value and make x mod r = K
K is our pseudo-random number

The heart of the game is to find a way to vary A such that the pseudo-random numbers K are uniformly (obviously almost uniform) in 0-r
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