C++

3. Write a complete program that converts a user input number in the 60 to 100 grade scale to the 0.0 to 4.0 grade scale. a) Minimum input value is 60, maximum is 100. b) Validate the input data. c) All numbers must be displayed as one decimal place as the result. For example, 0 = 0.0, 70 = 1.0, 89 = 2.9, 63 = 0.3, 96 = 3.6. Example output (User input can be any content) C. PE_gradeConvert Grade Converter Input grade (60-100): 0 Invalid grade. Please re-enter. Input grade (60-100): 101 Invalid grade. Please re-enter. Input grade