Incrementing pointer (ptr++) and (*ptr++)

Question

I was revisiting pointers when I had this doubt.

int *ptr;
int arr[5] = {10,20,30,40,50};
ptr = &arr[0];

Now printf(\"Value: %d\"

Answer 1

The trick to this is that whenever both are unary operators, then associativity is from right to left.

*ptr++ --> first increment pointer to next location and then dereference the value at that location.

Similarly *++ptr -->first increment pointer and then dereference.

++*ptr --> first dereference value at ptr and then increment the value.