14. Displaying a memory address

• 
      #include <cstdio>
  
      int main()
      {
          int x = 4;  
          printf( "x is stored at %p\n", &x );
          return 0;
      }
  
  

• Q: Why does the %p format display the memory address in hex format?

• A: It's the way engineers typically refer to memory addresses.

• Okay... Let's try to elaborate a little more on this answer.