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Assignment #1 Annual income

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Programming Assignment #1

Programs are to be submitted to Gradescope by the due date. You may work alone or in
groups of two. Programs submitted up to 24 hours late will still be accepted but incur
a 10% grade penalty. Uploading your programs to gradescope will immediately score
your submission. Your program grade will be the score of the last submission that you
have uploaded. Programs must compile using gcc -Wall without any warnings. Each
program that compiles with a warning will incur a 10% grade penalty. Each program
will have 10 seconds to compile and run 10 test cases on gradescope.
Exercise 1: vim Tutorial (10 points)
Complete the vim Tutorial under Piazza-Resources.
File to submit to Gradescope: rain.txt
Problem 1: annualincome.c (30 points, 3 per test case)
Write a program that reads in an hourly wage and calculates the total income over the
course of an entire year assuming 40 hours of work a week every week of the year. Example output:
[[email protected] ˜]$ ./annualincome
What is your hourly wage? 5.00
Your total income over a year is 10400 dollars and 0 cents
[[email protected] ˜]$ ./annualincome
What is your hourly wage? 18.33
Your total income over a year is 38126 dollars and 40 cents
File to submit to Gradescope: annualincome.c
∗Last updated January 8, 2017
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Problem 2: finalgrade.c (30 points, 3 per test case)
Write a program that calculates your final grade. Your program will read your current
grade (out of 100 points), the value of the final as a percentage, and your final exam score
(out of 100 points) from stdin and compute your final grade as a percent. All numbers
should be whole numbers. Round up fractional final grades. Example output:
[[email protected] ˜]$ ./finalgrade
What is your current grade? 76
How much is the final worth? 20
What is your final exam score? 96
Your final grade is 80%
[[email protected] ˜]$ ./finalgrade
What is your current grade? 100
How much is the final worth? 20
What is your final exam score? 77
Your final grade is 95%
File to submit to Gradescope: finalgrade.c
Problem 3: primerib.c (30 points, 3 per test case)
Chef John Mitzewich of Food Wishes fame recommends the following method to cook
prime rib, which he affectionately calls “Method X”1
. You have a prime rib that weighs
x pounds. Chef Mitzewich orders you to cook your rib at 500 degrees Fahrenheit for 5x
minutes, turn off the oven (do not open the door), and let the rib continue to cook in
the oven for 2 hours. Write a program that outputs the total time that a rib weighing x
pounds is in the oven with the following format:
Your rib will be in the oven for h hours, m minutes, and s seconds.
You must have h ≥ 0, 0 ≤ m ≤ 59, and 0 ≤ s ≤ 59. Example output:
[[email protected] ˜]$ ./primerib
How many pounds is your prime rib? 3.75
Your rib will be in the oven for 2 hours, 18 minutes, and 45 seconds.
[[email protected] ˜]$ ./primerib
How many pounds is your prime rib? 5.35
Your rib will be in the oven for 2 hours, 26 minutes, and 45 seconds.
File to submit to Gradescope: primerib.c
1No, really, this is a recipe, and it works.
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