Pointers in C Programming

Question

I'm on the first exercise on pointers in the C programming course. I typed the code into gedit on linux. It replied Warning: format %x expects argument type of 'unassigned int', but argument 2 has type 'int *' [-Wformat=]. I found an article explaining the different between short int and int, but I don't understand the difference between 'unassigned int' and 'int * (assuming * could mean wildcard). Please clarify.

Answer 1

Will be grateful if you would kindly take this thread down or at least edit the Question to add [SOLVED] prefix. e.g. [SOLVED] Pointers in C programming.

Answer 2

The second exercise answers the int * question. Please ignore my question.