PROGRAM TO RECOGNIZE A STRING WITH THREE COSECUTIVE 0’s

[smart paper boy]

Code:

Algorithm:-

begin
if string=[0-9]*000[0-9]*
then
printf “Algorithm:-

string accepted”
else
printf “string rejected”
end

Program:-

LEX program to recognize a string with  three consecutive 0’s

%%
[0-9]*000[0-9]* { printf(“string accepted”);}
[0-9]* { printf(“string rejected”);}

%%

main()
{
yylex();
}\
int yywrap()
{
return 1;
}