Question

Which of the following is illegal?

(a) int *ip;

(b) string s, *sp = 0;

(c) int i; double* dp = &i;

(d) int *pi = 0;

I have been asked this question in an international level competition.

The above asked question is from Pointers in chapter Types, Pointers, Arrays & Structures in C++ of C++

Answer 1

Correct answer is (c) int i; double* dp = &i;

The best explanation: dp is initialized int value of i.