%{
#include <stdio.h>
int wordlen[50];  // Array to count words of different lengths
%}
 
%%
[ \t\n]+           { /* ignore whitespace */ }
[A-Za-z]+          { wordlen[yyleng]++; }   // count word length
.                  { /* ignore other characters */ }
%%
 
int main() {
    yylex();
    printf("\nHistogram of Word Lengths:\n");
    for (int i = 1; i < 50; i++) {
        if (wordlen[i] > 0) {
            printf("%2d: ", i);
            for (int j = 0; j < wordlen[i]; j++)
                printf("*");
            printf("\n");
        }
    }
    return 0;
}
 

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