Please explain this code in c[solved]

Question

I can't understand how the memory address are allocated (for 32 bit compiler)and what is a+1 a+2 and a .
https://code.sololearn.com/cnPTTQbS781L/?ref=app

Answer 1

Here is a step by step , line by line explanation https://code.sololearn.com/cps34kNeXG8V/?ref=app

Answer 2

Thank you very much Prashanth Kumar [back again]