Discuss an output of code

Question

Discuss the below:

Q: Trace the following code and give the output: (be sure to include the code used)

int arr[] = {4, -6, 22, 7, 13, 8};
in arrSize = sizeof(arr)/sizeof(int);
vectorv(arr.arr+arrSize);

while (!v.empty())
{ cout <v.pop_back();
}