exercise_squareroot.pl

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description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:08.0
disk size 497 Bytes
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name no_type
processor id 1
description this is the default benchmark type for rejected benchmarks and benchmarks that are not associated with a type.
owning community none
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%Source: http://colin.barker.pagesperso-orange.fr/sands.htm
%query:squareroot(g,f).
/* squareroot(N, I) is true if I is the integer square root of the natural */
/*   number N.                                                             */
squareroot(N, I):-
  N >= 0,
  between(0, N, I),
  I * I =< N,
  (I + 1) * (I + 1) > N,
  !.
  
/* between(I, J, K) is true if K is an integer between I and J inclusive.  */
between(I, J, I):-I =< J.
between(I, J, K):-I < J, I1 is I + 1, between(I1, J, K).
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