Read the C++ statements given below and answer the following questions

1.	Read the C++ statements given below and answer the following questions:int ar[] = {34,12, 25,56, 38};int p = ar; (a) What will be the content of p? (b) What is the output of the expression: p + *(ar+2)? (c) The statement ar++; is invalid. Why? How does it differ from p++;?
Answer» (a) 34 (b) p=34 and (ar+2)=25 then p+(ar+2)=34+25=59. (c) ar++ is invalid but p++ valid, p is the pointer, pointer arithmetic is allowed.

Read the C++ statements given below and answer the following questions:int ar[] = {34,12, 25,56, 38};int p = ar; (a) What will be the content of p? (b) What is the output of the expression: p + *(ar+2)? (c) The statement ar++; is invalid. Why? How does it differ from p++;?

Answer»

(a) 34

(b) *p=34 and *(ar+2)=25

then *p+*(ar+2)=34+25=59.