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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Kaprekar-numbers/Prolog/kaprekar-numbers.pro Normal file
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kaprekar_(Z, X) :-
split_number(Z, 10, X).
split_number(Z, N, X) :-
N < Z,
A is Z // N,
B is Z mod N,
( (X is A+B, B\= 0)-> true; N1 is N*10, split_number(Z, N1, X)).
kaprekar(N, V) :-
V <- {X & X <- 1 .. N & ((Z is X * X, kaprekar_(Z, X)); X = 1) }.