language c++

Hi i need help getting the out below i have include my code as well i have my main and then my functions but i dont know how to get the largest value of a vector i am stuck there. i need help making that and if you could please explain whats going on in that piece of code. also please correct any mistakes you see in my code. its a makefile .

Expected Output

My main

Functions

Calling function PopulateArray .. . Enter a unique integer value between 1 to 9 (q=quit) 2 Enter a unique integer value between 1 to 9 (q=quit) . 6 Enter a unique integer value between 1 to 9 (q=quit) . 7 Enter a unique integer value between 1 to 9 (q=quit) . 9 Enter a unique integer value between 1 to 9 (q=quit) 1 Enter a unique integer value between 1 to 9 (q-quit) 3 Enter a unique integer value between 1 to 9 (q-quit) Calling function GetLargest . .. The largest element value in the vector is 9