run program and post a picture of output

language is C++

This Programming Project explores how the unnamed namespace works. Listed are snippets from a program to perform input validation for a username and password. The code to input and validate the username is in a separate file than the code to input and validate the password. File header user.cpp namespace Authenticate void inputUserName() do cout > username ) while (isvalid) string getuserNm) return username Define the username variable and the 1svalid) function in the unnamed namespace so the code will compile. The 1svalid) function should return true if username contains exactly eight letters. Generate an appropriate header file for this code