This is the archived website of SI 204 from the Spring 2017 semester. Feel free to browse around; you may also find more recent offerings at my teaching page.

Homework 03: Variables and I/O

Name: _____________________________________________ Alpha: ___________________

Describe help received: ________________________________________________________

Due before class on Wednesday, January 18
This homework contains code to be submitted electronically. Put your code in a folder called hw03 and submit using the 204sub command.
This is an electronic homework and you do not need to print out anything to turn in during class.

Assignment

Required reading: Section 3: Data representation and Section 4: I/O and type conversions from the Unit 2 class notes.
Write a program in a file called checkout.c that does a very simple grocery store checkout: it should read in the name of an item, the cost of that item, and how many of that item someone is buying. Then your program should print out a line like 5 apples cost $3.55 showing the total cost.
Example of running your program:
```
roche@ubuntu$ gcc checkout.c -o checkout
roche@ubuntu$ ./checkout
```
Example input typed in to your program:
```
tacos 1.22 3
```
Example output from your program:
```
3 tacos cost $3.66
```
Submit your program in a file called checkout.c using the online submission system.

Hint: Check out the C functions reference page for a quick reference on how to use the input/output commands you'll need.

Hint: The submit instructtions show how to submit code for the assignments in this class.

SI 204 Spring 2017 / HWs

Assignment