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  1. count(0):-!.
  2. count(X):-
  3. 	writef('%t\z',[X]),
  4. 	succ(XN,X),
  5. 	count(XN).
Success #stdin #stdout 0.02s 6204KB
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?-count(100)
stdout
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Standard output is empty
https://ideone.com/7u69h
language:
Prolog (swi 7.6.4)
created:
14 years ago
visibility:
public

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