I have a problem

Question

https://code.sololearn.com/cwZ48vqgaL1E/?ref=app

Answer 1

Your v1 and v2 are both empty.

Answer 2

It is default initialization. It is applied in case if there is no argument provided. You provided empty vector. So, default value wasn't applied.

Answer 3

vector<int> v1={1,2,3,4};

Answer 4

Why? I initialized v2 by {1,2,3,4,5,6,7}

Answer 5

So how to initialize vector correctly?

Answer 6

Oh, thanks I just tried it but with v2, and didn’t understand why it isn’t working, so now I understand my fault:)