C++ coding

Write the two versions of program that reads a sequence of positive integers from the user, caluclate their geometric mean, and print the geometric mean

Your two versions should read the integer sequence in two ways: a) First read the length of the sequence. For example, an execution would look like.

Please enter the length of sequence:3

Please enter your sequence:

1

2

3

The geometric mean is: 1.8171

b) Keep reading the numbers until -1 is entered. For example, an execution would look like:

Please enter a non-empty sequence of positive integers, each one in a separate line.End your sequence by typing -1:

1

2

3

-1

The geometric mean is: 1.8171