(C++)

Create a program that converts number grades to letter grades.

Console (valid data)

Letter Grade Converter

Enter numerical grade (1-100): 90

Letter grade: A

Bye!

Console (invalid data 1)

Letter Grade Converter

Enter numerical grade (1-100): -1

Numerical grade can't be negative.

Bye!

Console (invalid data 2)

Letter Grade Converter

Enter numerical grade (1-100): 110

Numerical grade is too large.

Bye!

Specifications

• The grading criteria is as follows:

A 90-100 B 80-89 C 70-79 D 60-69 F 0-59

• For grades less than 0, display a message that indicates that the numerical grade cant be negative.
• For grades greater than 100, display a message that indicates that the numerical grade is too large.
• Use the following Control Structures to make decisions on the flow of you program. These should be nested as decided below.
• To validate the entry, use an If.ThenElse to validate the number entered is valid.
• If valid (Else), use a Switch.Case.BreakDefault to return valid letter grade.