Types & Expressions II

Name: ____________________________________________________ Alpha: ________________________

Describe help received: _____________________________________________________________________
See the bottom for how to submit your work.

Due: Before 0800 on next class day

(10 pts) Read the lecture notes for today carefully. Read the programming guide and tips. Honestly declare how you read the notes.
1. (10 pts) I read the notes carefully. I have a good understanding of the topics therein.
2. (10 pts) I read the notes carefully, but I don't really understand the following points well:
3. (0 pts) I didn't read the notes carefully.
(4 pts) What's the output of the following code snippet?
```
cout << 3/4 << endl;
cout << 20 % 7 << endl;
```
(10 pts) What is the type of each of the following values?
```
 -0      0.0     '0'    "-0.0"       false 
```

(16 pts) Fill out the table

Code	User Input	Program Output	Unread Input
char c; cin >> c; cout << c << endl;	`103.07%`
int k; cin >> k; cout << k << endl;	`103.07%`
double x; cin >> x; cout << x << endl;	`103.07%`
string s; cin >> s; cout << s << endl;	`103.07%`

(60 pts) Write a program hw.cpp that reads in two lengths in the format x' y'' (i.e. x feet y inches) and returns the difference in length between the two in the same format. You may assume that the first length is always larger than the second! Note that to represent the unit of inches, we use two single-quotation marks instead of one double-quotation mark.
A typical run of your program should look like this (user input shown in red):
```
Enter two lengths in feet and inches (larger first!)
32' 6''
15' 11''
Difference is 16' 7''
```
- Hint 1: First work on getting your program simply read the four measurement values, then work on getting it to print out the difference in inches, then work on getting the difference in feet and inches.
- Hint 2: The string constant "'" works just fine, but to get the character constant of the apostrophe you must write '\'', which uses the backslash as an escape character.
- Hint 3: For ideas on how to chop a length in inches into feet and inches, look at the Minutes and Seconds program, which has to deal with the similar problem of chopping a time in seconds up into minutes and seconds.

Turn in (Due: 0800 on the next class day)

Written portion: Print out this homework assignment and annotate your answers to the written portion. Turn in the hardcopy in class.
Programming portion: Submit your code hw.cpp to the submission server by using the command below (executed from the same directory as your hw.cpp)
```
~/bin/submit -c=IC210 -p=hw03 hw.cpp
```