STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Design and Stop Exercises Solutions
to accompany the third edition of
C++ for Computer Science and Engineering
by Vic Broquard
© 2001, 2002, 2003 by Vic Broquard, All rights reserved
Published by Broquard eBooks 103
Timberlane
East Peoria, IL 61611
Coursesity Stuvia | Page 1 of 102
, STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Chapter 1 — Design Exercises
1. How would you solve this problem? What is the answer? A bug wishes to climb to the top
of a 12-foot tall telephone pole. During the day, it climbs 3 feet. However, while it sleeps at
night, the bug slides back down 2 feet. How many days does it take the bug to reach its
objective, the top of the pole?
Answer:
day Starts Day At Height Made that Day
1 0 3
2 1 4
3 2 5
4 3 6
5 4 7
6 5 8
7 6 9
8 7 10
9 8 11
10 9 12 — done he’s at the
top
2. Sketch a solution in pseudocode or English to solve this problem. A math teacher
wishes to have a program that displays the multiplication tables for her fourth graders.
She wants the program to accept any whole number (integer) from 1 to 9. The program
then displays the multiplication tables from 1 to that number. A sample run might be as
follows. Note she enters the underlined number 4.
Enter a number from 1 to 9: 4
1 x 1 = 1 x 1 = 1
1 x 2 = 2 x 1 = 2
1 x 3 = 3 x 1 = 3
1 x 4 = 4 x 1 = 4
2 x 2 = 2 x 2 = 4
2 x 3 = 3 x 2 = 6
2 x 4 = 4 x 2 = 8
3 x 3 = 3 x 3 = 9
3 x 4 = 4 x 3 = 12
4 x 4 = 4 x 4 = 16
A Solution:
display “Enter a number from 1 to 9: “
input endnumber
let startnumber = 1
do the following while startnumber is less than or equal to
endnumber let currentnumber = startnumber
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do the following while currentnumber is less than or equal to
endnumber display startnumber, ‘x’, currentnumber, ‘=’,
currentnumber, ‘x’,
startnumber, ‘=’ currentnumber times
startnumber add 1 to currentnumber
end do
add one to startnumber
end do
main storage: startnumber endnumber currentnumber
3. Sketch a solution in pseudocode or English to solve this problem. A manager of some
carpet store wishes a program that calculates the square footage of carpet a customer
requires and determines his cost for installation based on the square footage. The program
first asks him to enter the length and width of the room. It then displays the square-footage.
His installation cost is found by multiplying the square footage by 7.5%. A test run might
be:
Enter the length and width of the carpet: 10 20
The square footage is 200 and the service charge is $15.00
solution:
display “Enter the length and width of the carpet:
“ input length and width
sqFootage = length times width
serviceCharge = sqFootage times .075
display “The square footage is “,
sqFootage,
“ and the service charge is $”,
serviceCharge main storage: length width sqFootage
serviceCharge
Coursesity Stuvia | Page 3 of 102
, STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Chapter 1 — Stop! Do These Exercises Before Programming
Correct the errors in the following programs. If you are having trouble determining what is wrong,
you can always make a test program, enter this coding and see what the compiler indicates is
wrong.
1. Why does this program not compile? Show what must be done to fix it?
int main () {
cout << "Hi there!\n"; return 0;
}
#include <iostream> #include
<iomanip>
solution: header includes must come first and needs the using namespace statement
#include <iostream>
#include <iomanip> using
namespace std; int main ()
{
cout << "Hi there!\n"; return 0;
}
2. Why does this program not compile? Show what must be done to fix it?
#include <iostream> #include
<iomanip> Int Main () {
Cout << "Great day outside!!\n"; return 0;
}
solution: you must watch the case of items and using namespace
#include <iostream>
#include <iomanip> using
namespace std; int main ()
{
cout << "Great day outside!!\n"; return 0;
}
3. Why does this program not compile? Show what must be done to fix it?
#include <iostream> #include
<iomanip>
Coursesity Stuvia | Page 4 of 102
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Design and Stop Exercises Solutions
to accompany the third edition of
C++ for Computer Science and Engineering
by Vic Broquard
© 2001, 2002, 2003 by Vic Broquard, All rights reserved
Published by Broquard eBooks 103
Timberlane
East Peoria, IL 61611
Coursesity Stuvia | Page 1 of 102
, STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Chapter 1 — Design Exercises
1. How would you solve this problem? What is the answer? A bug wishes to climb to the top
of a 12-foot tall telephone pole. During the day, it climbs 3 feet. However, while it sleeps at
night, the bug slides back down 2 feet. How many days does it take the bug to reach its
objective, the top of the pole?
Answer:
day Starts Day At Height Made that Day
1 0 3
2 1 4
3 2 5
4 3 6
5 4 7
6 5 8
7 6 9
8 7 10
9 8 11
10 9 12 — done he’s at the
top
2. Sketch a solution in pseudocode or English to solve this problem. A math teacher
wishes to have a program that displays the multiplication tables for her fourth graders.
She wants the program to accept any whole number (integer) from 1 to 9. The program
then displays the multiplication tables from 1 to that number. A sample run might be as
follows. Note she enters the underlined number 4.
Enter a number from 1 to 9: 4
1 x 1 = 1 x 1 = 1
1 x 2 = 2 x 1 = 2
1 x 3 = 3 x 1 = 3
1 x 4 = 4 x 1 = 4
2 x 2 = 2 x 2 = 4
2 x 3 = 3 x 2 = 6
2 x 4 = 4 x 2 = 8
3 x 3 = 3 x 3 = 9
3 x 4 = 4 x 3 = 12
4 x 4 = 4 x 4 = 16
A Solution:
display “Enter a number from 1 to 9: “
input endnumber
let startnumber = 1
do the following while startnumber is less than or equal to
endnumber let currentnumber = startnumber
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, STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
do the following while currentnumber is less than or equal to
endnumber display startnumber, ‘x’, currentnumber, ‘=’,
currentnumber, ‘x’,
startnumber, ‘=’ currentnumber times
startnumber add 1 to currentnumber
end do
add one to startnumber
end do
main storage: startnumber endnumber currentnumber
3. Sketch a solution in pseudocode or English to solve this problem. A manager of some
carpet store wishes a program that calculates the square footage of carpet a customer
requires and determines his cost for installation based on the square footage. The program
first asks him to enter the length and width of the room. It then displays the square-footage.
His installation cost is found by multiplying the square footage by 7.5%. A test run might
be:
Enter the length and width of the carpet: 10 20
The square footage is 200 and the service charge is $15.00
solution:
display “Enter the length and width of the carpet:
“ input length and width
sqFootage = length times width
serviceCharge = sqFootage times .075
display “The square footage is “,
sqFootage,
“ and the service charge is $”,
serviceCharge main storage: length width sqFootage
serviceCharge
Coursesity Stuvia | Page 3 of 102
, STUDY NOTES & REFERENCE GUIDE
CourseSity on Stuvia | https://www.stuvia.com/user/CourseSity
Chapter 1 — Stop! Do These Exercises Before Programming
Correct the errors in the following programs. If you are having trouble determining what is wrong,
you can always make a test program, enter this coding and see what the compiler indicates is
wrong.
1. Why does this program not compile? Show what must be done to fix it?
int main () {
cout << "Hi there!\n"; return 0;
}
#include <iostream> #include
<iomanip>
solution: header includes must come first and needs the using namespace statement
#include <iostream>
#include <iomanip> using
namespace std; int main ()
{
cout << "Hi there!\n"; return 0;
}
2. Why does this program not compile? Show what must be done to fix it?
#include <iostream> #include
<iomanip> Int Main () {
Cout << "Great day outside!!\n"; return 0;
}
solution: you must watch the case of items and using namespace
#include <iostream>
#include <iomanip> using
namespace std; int main ()
{
cout << "Great day outside!!\n"; return 0;
}
3. Why does this program not compile? Show what must be done to fix it?
#include <iostream> #include
<iomanip>
Coursesity Stuvia | Page 4 of 102
