$1)$ Write a program to ask for student grades and compute the GPA. Assume there are five grades per student. Use functions in your implementation. $(50$ points$)$

$2)$ Define an array of int types with a size of ten. Scan the numbers in the array and add the numbers together if the value of the number is greater than $30.(50$ points$)$

C$++$Programming language. Do not use AI for my own learning purposes