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Hello, I am having trouble with this C++ homework. We have to create a .cpp file and a .hpp file for this task How can I also avoid having the user input a negative file?

Hello, I am having trouble with this C++ homework. We have to create a .cpp file and a .hpp file for this task How can I also avoid having the user input a negative file?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Hello, I am having trouble with this C++ homework. We have to create a .cpp file and a .hpp file for this task

How can I also avoid having the user input a negative file? 

Create a program to calculate grades as well as descriptive statistics for a set of test scores. The test scores can be entered via a user prompt or through an external file. For each student, you need to provide a student name (string) and a test score (float). The program will do the followings: Assign a grade (A, B, C, D, or F) based on a student's test score. Display the grade roster as shown below: Name Test Score Grade ==== ========== ===== Ann John Кaren 90 100 93 A A A Calculate the following descriptive statistics (as shown below) Number of students in the class Average score Maximum score Minimum score =====Class Statistics Number of students in the class: 3 Class Average: 94.3333 Maximum Test Score: 100 Minimum Test Score: 90 The program must use A loop structure (for-loop, while-loop, or do-while-loop) Conditional processing (if-then-else) o Arrays At least one function оо
Transcribed Image Text:Create a program to calculate grades as well as descriptive statistics for a set of test scores. The test scores can be entered via a user prompt or through an external file. For each student, you need to provide a student name (string) and a test score (float). The program will do the followings: Assign a grade (A, B, C, D, or F) based on a student's test score. Display the grade roster as shown below: Name Test Score Grade ==== ========== ===== Ann John Кaren 90 100 93 A A A Calculate the following descriptive statistics (as shown below) Number of students in the class Average score Maximum score Minimum score =====Class Statistics Number of students in the class: 3 Class Average: 94.3333 Maximum Test Score: 100 Minimum Test Score: 90 The program must use A loop structure (for-loop, while-loop, or do-while-loop) Conditional processing (if-then-else) o Arrays At least one function оо
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