Name:
(as it would appear on official course roster)
Umail address:	@umail.ucsb.edu	section
Optional: name you wish to be called if different from name above.
Optional: name of "homework buddy" (leaving this blank signifies "I worked alone"

h13: Chapter 8: Strings

ready?	assigned	due	points
true	Tue 03/06 09:00AM	Tue 03/13 08:00PM

You may collaborate on this homework with AT MOST one person, an optional "homework buddy".

MAY ONLY BE TURNED IN IN THE LECTURE/LAB LISTED ABOVE AS THE DUE DATE,
OR IF APPLICABLE, SUBMITTED ON GRADESCOPE. There is NO MAKEUP for missed assignments;
in place of that, we drop the three lowest scores (if you have zeros, those are the three lowest scores.)

Please:

No Staples.
No Paperclips.
No folded down corners.

Read Chapter 8 and the lecture notes. If you do not have a copy of the textbook yet, there is one on reserve at the library under “COMP000-STAFF - Permanent Reserve”.

PLEASE MARK YOUR HOMEWORK CLEARLY, REGARDLESS OF IF YOU WRITE IT OUT IN INK OR PENCIL! FOR BEST RESULTS, SAVE THIS PAGE AS A PDF, THEN PRINT THE PDF.

1.(2 pts) How are ordinary arrays of characters and c-strings similar and how are they dissimilar?

2.(4 pts) What are two (2) things that are wrong with this use of a c-string (ignore why someone would write this code, focus on logic/syntax errors)?

char s1[5] = "Mark", s2[5] = "Jill";
for (int i = 0; i <= 5; i++)
	s1[i] = s2[i];
if (s1 != s2) s1 = "Art";

3.(4 pts) What is the output of the following code?

char s1[4] = "abc", s2[4] = "ABC";
if (strcmp(s1, s2)) cout << "Hi!";
else cout << "Hey!";

4.(8 pts) The following code takes in a string input from the user and performs an integer multiplication, as seen in the example run here. Note that the input string will contain the asterix character (i.e. *):

Enter 2 integer numbers to be multiplied, like this: num1*num2: 15*3
The answer is: 45

Complete the missing code below that performs this task (it can be done in 2 lines, but you can use more if you like).

string s; int k(0);
cout << "Enter 2 integer numbers to be multiplied, like this: num1*num2: ";
cin >> s;

cout << "The answer is: " << k << endl;

5.(10 pts) Show the output produced when the following code (entire program not shown) is executed. You are encouraged to also try to compile this in a program to verify your results.

    string name = "Jeffery Tambor";

    cout << "NAME = " + name << endl;
    cout << name.length() << endl;

    name.erase(8, 6);
    cout << name << endl;
    name.append("Dean WD Morgan");
    cout << name << endl;

    name.insert(22, "@TWD");
    cout << name << endl;
    name.replace(23, 3, "The WD");
    cout << name << endl;

    cout << name.find("WD") << endl;
    cout << name.rfind("WD") << endl;
    cout << name.rfind("fery") << endl;

    for (int i = name.length(); i > 20; i--)
        cout << name[i-1];
    cout << endl;