help with histogram exercise in K&R book

Hello, I am currently working on a exercise in K&R book which by the is an excellent book, but the solutions on the net really do not have any comments what so ever. Any help in clearing up my confusion would be greatly helpful. Before I ask questions, let me show you the code found on the interent

Code:

#include<stdio.h>

#defineMAXWORDLEN10


intmain(void)
{
intc;
intinspace = 0;
longlengtharr[MAXWORDLEN+ 1];
intwordlen = 0;


intfirstletter = 1;
longthisval = 0;
longmaxval = 0;
intthisidx = 0;
intdone = 0;


for(thisidx= 0; thisidx <= MAXWORDLEN;thisidx++)
 {
 lengtharr[thisidx]= 0;
 }


while(done== 0)
 {
 c= getchar();


if(c== ''|| c == '\t'|| c == '\n'|| c == EOF)
 {
if(inspace== 0)
 {
 firstletter= 0;
 inspace= 1;


if(wordlen<= MAXWORDLEN)
 {
if(wordlen> 0)
 {
 thisval= ++lengtharr[wordlen - 1];
if(thisval> maxval)
 {
 maxval= thisval;
 }
 }
 }
else
 {
 thisval= ++lengtharr[MAXWORDLEN];
if(thisval> maxval)
 {
 maxval= thisval;
 }
 }
 }
if(c== EOF)
 {
 done= 1;
 }
 }
else
 {
if(inspace== 1 || firstletter == 1)
 {
 wordlen= 0;
 firstletter= 0;
 inspace= 0;
 }
 ++wordlen;
 }
 }


for(thisval= maxval; thisval > 0; thisval--)
 {
 printf("%4d | ",thisval);
for(thisidx= 0; thisidx <= MAXWORDLEN;thisidx++)
 {
if(lengtharr[thisidx]>= thisval)
 {
 printf("* ");
 }
else
 {
 printf("  ");
 }
 }
 printf("\n");
 }
 printf("     +");
for(thisidx= 0; thisidx <= MAXWORDLEN;thisidx++)
 {
 printf("---");
 }
 printf("\n      ");
for(thisidx= 0; thisidx < MAXWORDLEN;thisidx++)
 {
 printf("%2d",thisidx + 1);
 }
 printf(">%d\n",MAXWORDLEN);
 getch();


return0;
}

Question 1: When the lengtharr[thisidx] is being initialized, does that make thisidx equal to zero or its just a first element?

Question 2: Which part stores the word count in the array or is it being store at all?

Question 3: what does

Code:

thisval = ++lengtharr[MAXWORDLEN];

do, does it adds an element or what?

The output of the code is on The C Programming Language Exercise 1-13
please scroll down.

Any help is greatly appreciated and thank you for your time in reading this lengthy post.
EDIT: the code is on the link as well, since I still don't know how to scroll the code on here.

I would suggest you edit your post, and have another go at pasting your code.

So that it isn't all on one very long line.

Originally Posted by Salem

I would suggest you edit your post, and have another go at pasting your code.

So that it isn't all on one very long line.

The link where the output is at has the code as well, but I think I have it pasted correctly now.

Try 'paste as text', not paste as html.

Check other posted code in code tags on this forum - it looks a lot better than that!

This thread is officially closed due to the crappy code output