Question

The following statements are in C++:

1. Consider the following statements:

int *p;

int i, k;

i = 50;

k = i;

p = &i;

After these statements, which of the following statements will change the value of i to 15?

a) k = 15;

b) *k = 15;

c) p = 15;

d) *p = 15;

e) Two or more of the answers will change i to 15.

Answer 1

Option D is the only correct answer.

For statement k=i
K will assigned with new addressed
It don't have any relation with i
So a and b are wrong
And for statement p=15
P points to address 15
So C is also wrong..

For *p=15 updates the content of I address
Example let 1000 is the address of I and 1002 is the address of k.
Now p holds 1000

*p =15 updates the content of address of 1000.

So Option D is correct answer..