Answered: Write a C/C++ program that asks the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Write a C/C++ program that asks the user for three
integer marks. These are the student marks out of
25 for class tests.
Subsequently the program should ask the user for
a big test mark out of 50. The final mark is
calculated with 50% class tests and 50% test mark.
Test all values for validity. If a value is invalid, a
message should be displayed, and the user should
be repeatedly given chance to correct the input.
The program should display the final mark, as well
as the symbol of the student (see Table 1.2).
The program should repeat until the user enters
“-1” for the first class test.
After the user has entered “-1”, the program should
display a summary of the marks, i.e. the average
final mark, highest final mark, and lowest final
mark. The program also displays the number of
students that pass (mark>=50), pass with
distinction (mark>=75), and the number of students
that fail (mark<50).
See Figure 1.2 for example output

A https://collections.nwu.ac.za/dbtw-wpd/textbases/exam-papers/documents-exams-2015-2020/cmpg121_pcnov
A Read aloud y Draw V
75+
A
60+
B
50+
40+
30+
F
Tabel 1.2/ Table 1.2
-=Welcome to markbook=-
Enter marks for student 1:
Test number 1 (25): 11
Test number 2 (25): 11
Test number 3 (25): 12
Enter mark for big test (50): 23
Final mark for student 1: 45.67, letter grade: D
Enter marks for student 2:
Test number 1 (25): 13
Test number 2 (25): 23
Test number 3 (25): 23
Enter mark for big test (50): 39
Final mark for student 2: 78.33, letter grade: A
a
CTD
1a

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