Write a LEX program to remove all the whitespaces.

Code:

%{

%}

%%

[ \t\n]

{fprintf(yyout,”%s",yytext);};

%%

main()

{

yyin=fopen("l21ip.txt","r");

yyout=fopen("l21op.txt","w");

yylex();

return 0;

}

int yywrap()

{

return 1;

}