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  1. /*Lex program to take check whether
  2. the given number is even or odd */
  3.  
  4. %{
  5. #include<stdio.h>
  6. int i;
  7. %}
  8.  
  9. %%
  10.  
  11. [0-9]+	 {i=atoi(yytext);
  12. 		if(i%2==0)
  13. 			printf("Even");
  14. 		else
  15. 		printf("Odd");}
  16. %%
  17.  
  18. int yywrap(){}
  19.  
  20. /* Driver code */
  21. int main()
  22. {
  23.  
  24. 	yylex();
  25. 	return 0;
  26. }
  27.  
Success #stdin #stdout #stderr 0.02s 6788KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/Nd0j4k/prog:26:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/YW3Dxk
language:
Prolog (swi 7.6.4)
created:
1 year ago
visibility:
public

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