C Programers Help Me Please

Hi
I have a Home work sheet :'(
It's too hard to me
Help me Please
I tried to do it but still there are errors :-[
ok This is the guistion

Quistion
Write a program that reads a line of text. The program should find the length of each word in the string and stores it in an array. The program should print the resulting array, and the index of the word that has the largest length. The program should also find and print the average word length.

This is my answer Can you fixe it :Please

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first try
#include<stdio.h>
#include<string.h>
int main()
{
char text[100];
int lens[50];
int len_all,i,largest,num_words,sum;
float ave;
printf("Enter A Line of Text Please\n");
gets(text);
len_all=strlen(text);
letter="getchar()";
while(strcmp(letter,"\0")!=0)
{
if(strcmp(letter," ")!=0)
lens[i]++;
else
i++;
letter="getchar()";
}

num_words=i++;

for(largest=0,i=0;i<=num_words;i++)
{
if(lens[i]>largest)
largest=i++;
sum+=lens[i];
}

ave=(float)sum/num_words;

printf("The length of The words is %d\n",lens);
printf("The largest length for word number %d\n",largest);
printf("The average of word length= %.2f\n",ave);

return 0;
}
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Second Try

#include<stdio.h>
#include<string.h>
int main()
{
char text[100],left[100];
int lens[50];
int len_all,len_left,i,largest,num_words,sum;
float ave;
printf("Enter A Line of Text Please\n");
gets(text);
len_all=strlen(text);

left[100]=strstr(text," ");
len_left=strlen(text);
lens[0]=len_all - len_left;

for(i=1;len_left!=0;i++)
{
len_all=strlen(left);
left[100]=strstr(left," ");
len_left=strlen(left)-1;
lens[i]=len_all - len_left;
}
num_words=i-2;

for(largest=0,i=1;i<=num_words;i++)
{
if(lens[i]>largest)
largest=i++;
sum+=lens[i];
}

ave=(float)sum/num_words;

printf("The length of The words is %d\n",lens);
printf("The largest length for word number %d\n",largest);
printf("The average of word length= %.2f\n",ave);

return 0;
}

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Please >> Please >> Help Mee :'(
I must Bring it on satrday :-X


Bye