%option noyywrap
%{
	#include<stdio.h>
%}
digit[0-9]
letter[A-Za-Z]
key "int"|"main"|"for"|"return"|"printf"|"while"|"scanf"|"if"

%%
 {key} {printf("%s is a keyword and length  is: %d\n",yytext,yyleng);}
 {letter} ({letter}|{digit})* {printf(%s is an identifier and length is: %d",yytext,yyleng);} 
 [digit}+{printf("%s is an int value is %d\n",yytext,atoi(yytext));}
 {digit}+"."{digit}+{printf("%s is a folatingpoint number and folating value is %f\n",yytext,atof(yytext));}

%%
int main()
{
                
	return 0;
}