Andrew Kelley
An attempt at an answer to the memory problem given in class.
Given: 
	x = malloc (...);
	foo();
	bar();
	free(x);
The call to free(x) causes the program to crash.
The other hints were as follows:
* Program crashes with the call to free.
* Program does not crash without the call to free (but leaks memory)
* foo and bar use x, but have no calls to free
* Neither foo nor bar reassigns x, although they do include x[i] = ....

My theory as to why the program crashes is that foo() and/or bar() 
places more data into the memory allocated for x than it can hold, yet 
is not enough data to crash in foo() or bar(). Something like placing
a string that is too long at the end of an array. This would cause the 
program to crash on the call to free(x) because there is still a pointer
to memory that hasn't been allocated at the very edge of the originally
allocated space.