编写一个程序，打印输入中单词长度的直方图

#include <stdio.h>

#define MAXHIST 15
#define MAXWORD 11
#define IN  1
#define OUT 0

int main()
{
int c, i, j, nc, state;    //其中nc用于计算一个单词长度,state用于判断是否在计算一个单词
int len;       //用于保存根据比例计算出来需要打印的个数结果
int maxvalue;  //保存最大单词数量
int ovflow;    //用于计算超过规定长度的单词数
int wl[MAXWORD];

state = OUT;
nc = 0;
ovflow = 0;
for (i = 0; i < MAXWORD; i++)   //wl用于统计各个长度的单词数量
{
wl[i] = 0;    //首先初始化数组，全设为0
}
while ((c = getchar()) != EOF)
{
if (c == ' ' || c == '\t' || c == '\n')
{
state = OUT;
if (nc > 0)       //说明一个单词的结束
if (nc < MAXWORD)
++wl[nc];
else
++ovflow;
nc = 0;
}
else if (state == OUT)    //说明一个单词的开始
{
state = IN;
nc = 1;
}
else         //说明在计算一个单词过程中
++nc;
}
maxvalue = 0;
for (i = 1; i < MAXWORD; i++)    //用于计算出最大单词数量
{
if (wl[i] > maxvalue)
maxvalue = wl[i];
}
#if 0    //水平直方图
for (i = 1; i < MAXWORD; ++i)
{
printf ("%5d - %5d : ", i, wl[i]);
if (wl[i] > 0)
{
if ((len = wl[i] * MAXHIST / maxvalue) <= 0)
len = 1;
}
else
{
len = 0;
}
while (len > 0)
{
printf("*");
--len;
}
putchar ('\n');
}
#else    //垂直直方图
/* 垂直直方图的思想在于从最大值开始遍历，由上往下，由左往右 */
for (i = MAXHIST; i > 0; --i)
{
for (j = 1; j < MAXWORD; j++)
if (wl[j] * MAXHIST / maxvalue > i)
printf(" * ");
else
printf("   ");
putchar('\n');
}

for (i = 1; i < MAXWORD; i++)
printf ("%4d ", i);
putchar ('\n');
for (i = 1; i < MAXWORD; i++)
printf ("%4d ", wl[i]);
putchar ('\n');
#endif
if (ovflow > 0)
{
printf ("There are %d words >= %d\n", ovflow, MAXWORD);
}

return 0;
}