The given code is below( Code in Code Here Thank you)

#include #include #include

using namespace std;

//"A+" --> 4.0, "A" --> 4.0, "A-" --> 3.7, ... so on. double letterToPoints(string grade) { //CODE HERE }

int main() { //CODE HERE }

Write a C++ program to read the grade data for all courses of a student and output the cumulative GPA and the GPA for 'core courses. User enters one line of data for each course: # of credit hours, the letter grade & a flag indicating whether it is a "core" course (1 means it is a core course, O means it is not). Last line of input contains 0 for the credit hours indicating the end of input. Cumulative GPA is computed by adding (# of grade points * # of credit hours) for all courses divided by total # of credit hours. Core GPA is computed the same way, but only based on the "core" courses. Output both with the precision of exactly 2 fractional digits. Here is a sample input & output: 2 A 1 3 B+ 0 4 AO 3 C-1 0 Cumulative GPA: 3.25 Core GPA: 2.62 Output NA for Core GPA, in case the student has not done any core courses at all. Utilize a function letter ToPoints for the conversion. Use this table to convert the letter grades to GPA for each course: Letter Grade Grade Points A+ 4.0 A 4.0 A- 3.7 B+ 3.3 B 3.0 B- 2.7 C+ 2.3 2.0 1.7 D+ 1.3 D 1.0 F 0.0