Write a program for the following problem. An instructor needs a program that accepts a student identification number and three test scores, test1, test2, and final_test as input, and determines and outputs for each student the semester average and the final letter grade according to the following scheme:

SEMESTER AVERAGE FINAL LETTER GRADE
90 – 100 A
80 – 89 B
70 – 79 C
60 – 69 D
0 – 59 F

The semester average for students is computed using the formula
semester_average = 0.20 * test1 + 0.30 * test2 + 0.50 * final_test

Student identification numbers are four-digits integer. Input should terminate when the instructor types 0 for the student identification number. The instructor also wants a distribution of letter grades and a class average. Class average is computed using the following formula:

class_average = (4 * number_of_A_grades + 3 * number_of_B_grades + 2 * number_of_C_grades + 1 * number_of_D_grades)/number_of_students

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Believe me nobody is gonna help you unless you show some progress in your assignment.

Then u noe hw 2 use do-while loop mar?

Something like

I think you should start with a basic C book. You can not learn each and every language construct by communities.

You forgot the semicolon after the while.

Could u gv me the website tat can download c programing the notes n the example? Thx^^

Google C programming tutorials and you will find more than a ton.

I am too very new in C... I ll try to solve ur prob.....