C fork dealing with global variable

Question

I\'m not understanding the output of this program:

#include 
#include 
#include 

int i = 0;

int main()
{
           


        

Answer 1

Fork will make a copy of the process. An independent copy of the process. So, if a global variable contains 3 at the time you fork, each copy of the process gets their very own 3. And if they modify, their modifications are completely independent.