fork download
copy 
  1. %{
  2.   #include <stdio.h>
  3. %}
  4. %%
  5. (a|b)*ccc{
  6.   int a=0;b=0;
  7.   for(int i=0;yytext[i]!='\0';i++){
  8.     if(yytext[i]=='a')a++;
  9.     else(yytext[i]=='b')b++;
  10.   }
  11.   if(a%2!=0 && b%2==0){
  12.     printf("accepted");
  13.   }
  14.   else{
  15.     printf("rejected");
  16.   }
  17. }
  18. .*{
  19.   printf("reject");
  20. }
  21. %%
  22. int main(){
  23.   printf("enter string: ");
  24.   yylex();
  25.   return 0;
  26. }
  27. int yywrap(){
  28.   return 1;
  29. }
Success #stdin #stdout #stderr 0.02s 6848KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/e3mEY4/prog:29:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/1h7yas
language:
Prolog (swi 7.6.4)
created:
4 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!