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Date: Fri, 6 Oct 2023 10:54:08 +0200
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Le 04/10/2023 à 23:59, pehache a écrit :
> Si pgcd(N,S) = 1, alors
> Fav(S,C) = modulo(C-1+S,N)+1
> Fav(S,C) = modulo(C-1-S,N)+1
> répond aux critères 

tiens je n'avais pas fait gaffe que la Linear Congruence était si 
facilement inversible.


-- 
Fabrice