Why is my respond invalid??

Question

Which of the following statement is valid?
(this is a challenge question exactly.)

int *arr = new int ; (my respond)
int *arr = new int [5]; (true answer)

i think both of them are correct.

Answer 1

Your answer is definitely correct.
The name given to a variable 'arr' doesn't implies at all it is an array..
I may call my array just like this
int aSingleValueOnly_nothingMore_ofTypeFloat[10 ] = {0};
And this is perfectly correct.
Obviously the name is a little misleading.

The quizzes are not always perfect..

Answer 2

You can see this question here.

https://www.sololearn.com/post/80568/?ref=app