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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 0.04s 7004KB
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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/h06Owu/prog:26:2: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/7z2FaT
language:
Prolog (swi 7.6.4)
created:
1 day ago
visibility:
public

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