- Write the function printsortedlabels() described in Section
12.3 and make the modifications to main()
to read a list of address labels and print them in sorted order
by last name.
Define a structure with the following members:
social security number
id number
name (last, first, middle)
exam score
Use the above structure for the data record of one student in a class of 50
students maximum. Write a menu-driven program that allows the commands: read
data from an input file into an array of the above structure; print data on
screen; save data into an output file; sort the data by a specified primary key
using pointers to the array; quit.
-
Modify Problem 2
to allow more than one exam up to a maximum of 5 exams. Use an
array of exam scores in the structure. Assume that the first three lines of the
input file include course title and headings. The actual data starts with the
fourth line.
-
Modify Problem 3
to compute and store a weighted average of the exam scores for
each student. Weighted average should be a member of the structure. Also allow
for computation of an average of any one or all the exams.
-
Modify Problem 4
to allow deleting one or more records, changing one or more
records, adding one or more records.
- Modify Problem 5
so that it can read an input file which may or may not contain a
column for the weighted average. Allow the user to output the data but specify
which data fields are not to be output to a new file.
- Modify the above program to include scores for a number of projects up to a
maximum of 15. Weighted average must now include exam as well as project
scores. Allow a structure member for a letter grade.
-
Modify the above program so it allows the user to perform the following
functions: form a class grade list for a new class; enter grades for a project
or an exam; change grades for a project or an exam; add or delete a student
from a class list; calculate the average for a project or an exam; calculate
the weighted average for each student over the projects and the exams; sort the
data by a primary key, e.g. weighted average, exam2, proj3, etc.; sort the
data by a primary key and a secondary key, i.e. if two records have the same
primary key, then sort those records by a secondary key; plot a distribution of
the weighted average grades.
- Write a program that keeps a membership list for a private club. The data
fields required are:
name
spouse name if any
address, business, residence
telephone, business, residence
hobby interests
membership date
dues outstanding
other charges outstanding
The club has a limit of 100 members. Write a program that allows the club
manager to: maintain the club list and update it; send out a mailing list to
all members with all data about the club members, except for financial data;
send out reminders to members about the charges outstanding; post new charges
and dues at regular intervals; post paid amounts upon receipt.
-
Assume that the above club maintains a library of at most 500 books. Data
for each book consists of:
book number
title
author
co-authors
publisher
date published
subject
keywords
check out data:
name, address, phone
date checked out
data returned
charges, if any
Write a program to maintain the library including: search the library by book
number, author, title, subject, keywords; add new books, remove outdated books
(all books older than 5 years); check out books; late charges at $0.25 per day
if a book is out by more than a month; write data to a file for books overdue
and charges.
- Write a macro processor assuming that the macros do not have arguments. Use
a structure to keep a macro identifier and its replacement string. Read an
input file which may have macros, and create an output file with macros
replaced by replacement strings.
- Write a macro processor. Assume that macros may have arguments. Use
structures to keep data about a macro.
- Use a structure to represent a rational number. Write functions for
rational number arithmetic. Write a simple calculator program for rational
numbers.