%{
#include <stdio.h>
int count_less_than_5 = 0;
int count_greater_than_10 = 0;
%}
 
%%
[a-zA-Z0-9]+ {
    int len = yyleng;
    if (len < 5)
        count_less_than_5++;
    else if (len > 10)
        count_greater_than_10++;
}
[ \t\n]+ ;  // Ignore whitespace
. ;         // Ignore any other character
%%
 
int main(int argc, char **argv) {
    printf("Enter text (CTRL+D to end input):\n");
    yylex();
    printf("\nWords with length < 5: %d\n", count_less_than_5);
    printf("Words with length > 10: %d\n", count_greater_than_10);
    return 0;
}
 
int yywrap() {
    return 1;
}
 

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