Array increment operator in C

Question

I don\'t understand the results of following code:

#include 
#include 
int main()
{
   int a[4]={1, 3, 5, 6};
   //suppose a is         


        

Answer 1

int a[4]={1,3,5,6}; 

printf("%d\n",a++); // you should not modify array name

 illegal in c

Assume pa is integer pointer

A pointer is a variable, so pa=a and pa++ are legal. But an array name is not a variable; constructions like a=pa and a++ are illegal.