Use Rust to implement the following. 1. (20 points) Create a public struct called StudentGrades. The...

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Use Rust to implement the following. 1. (20 points) Create a public struct called StudentGrades. The struct contains a name and a vector of grades. The StudentGrades struct has at least two methods (associated func- tions): average and grade. The average method returns the average score for that student. The grade method returns the student's letter grade based on the scale below. The Stu- dentGrades should not lose any information when calling either average or grade. Letter Grade A B () D F 90-100% 80-89% roger, 100.0, 80.0, 80 pete, 70, 75.5,73 70-79% 60-69% 0-59% 2. (20 points) Create a public struct called CourseGrades. The struct has a type-associated function from_file(file_path:String). The argument to the method is a path to a file. The method reads the file. For each line in the file, it creates a StudentGrades object. Each line of the file is in the format: name, grade1, grade2, ..., gradeN That is, each line starts with a name, followed by a comma, which is followed by optional spaces, which are followed by a numerical score. Each score represents a grade event, that is, an assignment or exam. Grades are separated by a comma followed by optional spaces. Here is a sample file: The struct has at least two methods: (associated functions): average and student. With the input N an integer, the average method returns the average score of all students on the N'th grade event. The first grade event is indexed by 1, not 0. average returns an Option, as the input N could be out of range. student has one parameter: a string which is a student's name. It returns an Option. If the name is found in the course, the StudentGrades is returned. Neither method should be destructive. You are not to use a CSV crate or libraries. Use Rust to implement the following. 1. (20 points) Create a public struct called StudentGrades. The struct contains a name and a vector of grades. The StudentGrades struct has at least two methods (associated func- tions): average and grade. The average method returns the average score for that student. The grade method returns the student's letter grade based on the scale below. The Stu- dentGrades should not lose any information when calling either average or grade. Letter Grade A B () D F 90-100% 80-89% roger, 100.0, 80.0, 80 pete, 70, 75.5,73 70-79% 60-69% 0-59% 2. (20 points) Create a public struct called CourseGrades. The struct has a type-associated function from_file(file_path:String). The argument to the method is a path to a file. The method reads the file. For each line in the file, it creates a StudentGrades object. Each line of the file is in the format: name, grade1, grade2, ..., gradeN That is, each line starts with a name, followed by a comma, which is followed by optional spaces, which are followed by a numerical score. Each score represents a grade event, that is, an assignment or exam. Grades are separated by a comma followed by optional spaces. Here is a sample file: The struct has at least two methods: (associated functions): average and student. With the input N an integer, the average method returns the average score of all students on the N'th grade event. The first grade event is indexed by 1, not 0. average returns an Option, as the input N could be out of range. student has one parameter: a string which is a student's name. It returns an Option. If the name is found in the course, the StudentGrades is returned. Neither method should be destructive. You are not to use a CSV crate or libraries.

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