Analyse length of words and draw the statistics with a chart

word_len_stat.c

#include <stdio.h>

#define IN  1
#define OUT 0
#define MAXWORDLEN 10

void drawChart(int maxValue, int *wordsLengthNum)
{
    int i, j;

    for (i = maxValue; i > 0; i--) {
        printf("%4d |  ", i);
        for (j = 1; j <= MAXWORDLEN; j++) {
            if (wordsLengthNum[j] >= i) {
                printf("*  ");
            } else {
                printf("   ");
            }
        }
        printf("\n");
    }
    printf("     +");

    for(i = 0; i <= MAXWORDLEN; i++) {
        printf("---");
    }
    printf("\n       ");

    for (i = 0; i < MAXWORDLEN; i++) {
        printf("%2d ", i + 1);
    }
    printf(">%d\n", MAXWORDLEN);
}

int main(int argc, char** argv)
{
    int c, i, nl, nw, nc, state;
    int maxLength, wordLength;
    int wordsLengthNum[MAXWORDLEN+1] = {0};

    state = OUT;
    nl = nw = nc = 0;
    wordLength = maxLength = 0;

    while ((c = getchar()) != EOF) {
        ++nc;

        if (c == '\n') {
            ++nl;
        }

        if (c == ' ' || c == '\n' || c == '\t') {
            if (state == IN) {
                ++wordsLengthNum[wordLength];

                if (wordLength > maxLength) {
                    maxLength = wordLength;
                }
                wordLength = 0;
            }
            state = OUT;
        }
        else if (state == OUT) {
            state = IN;
            ++nw;
        }

        if (state == IN) {
            if (wordLength <= MAXWORDLEN) {
                ++wordLength;
            } else {
                wordLength = 0;
            }
        }
    }
    printf("%d %d %d\n\n", nl, nw, nc);
    drawChart(maxLength, wordsLengthNum);
}