Write a C program that reads student information $($name$,$ roll number, marks$)$ from a file and

calculates the average marks of the students. The program should:

Use a structure to store student information.

Read the data from a file whose name is provided as a command$-$line argument.

Store the data in an array of structures.

Calculate the average marks of the students and print it$.$

Algorithm$/$Pseudo Code

Define a Structure:

Create a structure Student to store each student's name, roll number, and

marks.

Command$-$Line Argument:

In the main function, check if a filename is provided as a command$-$line

argument.

If not, print an error message and exit.

Reading File Data:

Use fopen to open the file.

Read the student details using fscanf and store them in an array

of Student structures.

Close the file after reading.

Calculate Average Marks:

Initialize a variable totalMarks to $0.$

Loop through the array of students, adding each student's marks

to totalMarks.

Calculate the average by dividing totalMarks by the number of students.

Print Results:

Print the average marks.

Sample Input and Output

Assume a file named students. txt:

Ali $10190\mathrm{.}5$

Bandar $10285\mathrm{.}0$

Abdullah $10378\mathrm{.}5$

Expected Output: