How to reverse each letter of word of a string

C++ is an amazing language. Those who have learnt it consider it to be most easiest languages. Everything and every program which you can think of can be made on C++.
Its not that I have learnt it so I am saying it's a fact and no one cab deny it. Here when we (The Best within Everything) have reached 7K visitors till now I had thought of expanding the scope to C++ as well.

Here now onwards the difficult programs of C++ which I'd be encountering will be published with tag C++.

How to reverse each letter of word of given string?

This program uses only three loops and 4 variables.
Anyone have a better code us invited to write on our blog

#include<iostream.h>
#include<conio.h>
#include<stdio.h>

void main()
{
 clrscr();
 int i,j,k,l;
 char str[101];
 i=0;
 j=0;
 cout<<"Enter a String: ";
 gets(str);
 cout<<" \n";
 for(l=0, k=0; str[k]!='\0';l++,k=i+1)
 {
   for(i=k; str[i]!=' 'i+=1);
   for(j=i-1; str[j]!=' '||j>=0; j-=1)
   {
     cout<<str[j];
    }
   cout<<" ";
 }
getch();
}