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  1. %%
  2. [+]?[0-9]+{printf("Positive Number");}
  3. [-][0-9]+{printf("Negative Number");}
Success #stdin #stdout #stderr 0.04s 6848KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/BKzree/prog:3:36: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/twhjAu
language:
Prolog (swi 7.6.4)
created:
3 days ago
visibility:
public

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