How to declare variable with fixed address

[unkn00wn]

BlackSheep, I am already using cannon's algorithm along with openmp. I only want to enhance it as much as possible.
Moschops, Sorry it it's a silly question but,
in dynamic declaration row 1 ended at 50 and row 2 started at 60 (instead of 54?).

can you write a code for accessing i[4][3] in above code?
{ Is this correct ? : *(*(i+4)+3) }

Also, can u suggest me good beginner's reference for memory management. (as in my few codes, i can see my ram linearly increasing at 45degrees)

Thank you all, this will be my last query in this thread.