C/C++ :: Programming A Simple Spell Checker Without Using Functions

I am programming a simple spell checker which checks if words match in a given dictionary.

The user first enters the words from the dictionary and then the words to check. I have comments in my code that explain how this is done.

The catch for the checking is: I cannot use functions like strcmp or even functions I made myself. For input and output I will also only use getchar and putchar.

Where I am stuck: I have a concept of how to check and compare the words with the dictionary, but this way the looping is extremely confusing (at least in my mind) and I cannot make a functioning one. The concept for this is in the comments of the code.

Here is what I've got so far.

The user enters aaa bb bbaa;abc aaa aa.
The output should be: *abc* aaa *aa*.

Since abc and aa does not match the dictionary on the left, but aaa does.

Also, words can have a max length of 4.

#include <stdio.h>
int main() {
char dictionary[40];
char words[40];
char both[80];

[Code] .....