Exercise #3: Write a program that finds all students who score the highest and lowest average marks of the first two homework in CS (I). Your program should read the data from a file called "hw2.dat" and displays the output to another file called "hw2.out" and on the screen. Each data line contains student name and his/her marks. The output should display all student names, marks, numerical grades and letter grades. In addition, vou should output the highest and lowest marks and those who earned.

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