Write a C++ program that reads a students last name and first name followed by 10 numeric grades [0 100] from a file. The number of records on the file is unknown, read and process each record until end of file is encountered.

Compute the average of each students grades after dropping the lowest grade (round average to the nearest integer before assigning letter grade.

Also compute and print the first name and last name of the student with the highest average and the lowest average.

Assign letter grades using the scale below:

A 91 100

B 80 -- 90

C 70 79

D 60 -69

F 0 - 59