Sure! Here is a C++ program that takes a student's score in an exam and computes and prints an appropriate grade for the student along with the course name.
```cpp
#include
#include
using namespace std;
string computeGrade(int score) {
if (score >= 80) {
return "A";
} else if (score >= 70 && score < 80) {
return "B";
} else if (score >= 60 && score < 70) {
return "C";
} else if (score >= 50 && score < 60) {
return "D";
} else {
return "F";
}
}
int main() {
string course_name;
int score;
// Input for the course name and score
cout << "Enter course name: ";
getline(cin, course_name);
cout << "Enter exam score: ";
cin >> score;
// Compute the grade based on the score
string grade = computeGrade(score);
// Output the course name and grade
cout << "Course Name: " << course_name << ", Grade: " << grade << endl;
return 0;
}
```
### Step-by-Step Solution:
1. Include Necessary Libraries:
- `#include `: For input and output operations.
- `#include `: For using the `string` data type.
2. Define a Function to Compute Grade:
- A function `computeGrade(int score)` checks the conditions for grading based on the score and returns the corresponding grade as a string.
3. main() Function Implementation:
- Declare variables `course_name` (string) and `score` (int).
- Prompt the user to enter the course name and read it using `getline(cin, course_name)` to handle spaces in the course name.
- Prompt the user to enter the exam score and read it using `cin >> score`.
- Call the `computeGrade` function to determine the grade based on the score.
- Print the course name and grade on the same line with appropriate descriptions.
4. Conditions for Grades:
- `score >= 80`: Grade is "A".
- `70 <= score < 80`: Grade is "B".
- `60 <= score < 70`: Grade is "C".
- `50 <= score < 60`: Grade is "D".
- `score < 50`: Grade is "F".
5. Output:
- The program outputs the course name and grade in the format: `Course Name: [course_name], Grade: [grade]`.
This program efficiently handles the input and output and implements the grading logic in a clear and concise manner.
