plz help me..

[satoof]

hi all, am new here and i have a question in c++ am taking cs1 course , soo am a beginner ..i have an assignment question so plz if any one can solve it to me am thankfull..the question is::

Write a program that finds 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 "hw.txt" and displays the output to another file called “results.txt”. The first line of the input file contains the number of students, n. The next n lines contain information about each student. Each data line contains the student name (first name and last name) and his/her marks, each out of 30.
The output should display all student names, marks, and grades. In addition your program should calculate and display the highest and lowest marks along with the name of the student. Also, your program should calculate and display all the average and the grade of the entire class. (See sample input/output). Also, see table for assigning letter grades.

A B C D F
(90-100) (80-89) (70-79) (60-69) (Less 60)


If your input file contains:

20
Mohamed Al-Ayoubi 21 18
Hiba Ahmed 22 14
Abeer BentMoussa 24 26
Ahmed Akibah 20 28
Noura Al-Kaabi 23 20
Abdullah Al-Souyaidi 18 28
Khori Abdullah 28 29
Eman Al-Harriri 25 29
Hithem Abu-Falafel 20 27
Aishamel Muqabal 21 20
Mounir Al-Arabi 20 28
HudaAmel Al-Khamissi 21 13
Huda Al-Ourbani 23 23
Mohamed Al-Sheikh 25 29
Rawshan Al-Nawaz 20 28
Saifeddin Al-Hashmi 22 26
Mohamed Al-Kawtahri 26.5 21.5
Abdullah Al-Badilz 19 25
Ibrahim Al-Khaboussi 25 15
Allaa Al-Maliki 29 19

The output should look like:

Student Name Mark1 Mark2 Avg. Mark Grade
--------------------------------------------------------------------------------------------------------------------
Mohamed Al-Ayoubi 21.00 18.00 19.50 D
Hiba Ahmed 22.00 14.00 18.00 D
Abeer BentMoussa 24.00 26.00 25.00 B
…………. ….. ……. …….. …..
Allaa Al-Maliki 29.00 19.00 24.00 B

The Maximum average mark is: 28.50 Scored by : Khori Abdullah
The minimum average mark is: 17.00 Scored by : HudaAmel Al-Khamissi

The average of the class: 23.29
The Grade of the class: C

[sicarie]

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MODERATOR

[dwurmfeld]

hi all, am new here and i have a question in c++ am taking cs1 course , soo am a beginner ..i have an assignment question so plz if any one can solve it to me am thankfull..the question is::

How about this for a start? Break up the problem into managable pieces, try to get a piece to run and ask questions of the group to specific problems. Looking at the assignment I would group the "pieces" as follows:

decide on a data structure to keep the student information; name grade, average...

and now, for each line in the file...
read text from a file a line at a time
is it the first line? Yes: get the header data and save it
No: seperate (parse) the text of the line read into the data structure
until there are no more lines in the input file

now, for each student record in the data structure
compute the new information
format a string with the new information
write that updated student record to the output file

I won't give more detail than that, but I do have questions for you:
How do you read data from a file?
How do you write data to a file?
How do you format a string with text and numbers?
How do you store information in an ordered "pile" (data structure)
How do you create a data structure when you don't know how many student records there will be? The student file can have no records or three hundred records (a big class I am sure but you get my point)

These questions should expose those areas where you may need specific help. Start by taking any one sub problem and write a test program to try your solution. If you can't see the whole solution then start with pieces, then tie it all together.

Good luck and good coding!