HW1 (due Sat. 2-Sep, 8pm)

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From the syllabus: Homework assignments will be primarily completed on the CMU CS Academy website with few exceptions. These assignments will include code tracing exercises and free response exercises requiring writing code, which are all generally autograded. The homework allows you to get practice on solving problems in an untimed environment with unlimited tries to automatically check solutions in CS Academy. The lowest two homework grades will be half-weighted.

Homeworks are entirely solo unless the assignment very explicitly allows you to collaborate. See the "Academic Integrity" section below for more details. That said, you always have access to extensive help provided by the TAs and course faculty. To get help on the homework assignments, you can go to daily office hours and/or post questions to Piazza.

A green checkmark next to a problem means it has autograded correctly and you are done. No green checkmark means it's not done yet. If you believe you should have received a green checkmark, be sure to review your work, and be sure that you hit the "check" button after the "run" button to submit it. The "check" button runs your code against additional hidden test cases which you must pass in order to receive credit. It's your responsibility to properly submit and be aware of whether you have received green-checkmark credit for your work! There is generally no partial credit for autograded problems.

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Important Notes:

1. Each CS Academy assignment will show a required "stars" in exercise sections, listed like this:
       "Section Exercises:   ⭐ 0 / 0."
   Ignore these numbers. For this class they have no meaning. You must complete the problems described below.
2. Do not hardcode to the test cases in your solutions.
3. We will not grade your code for style this week.
4. Do not use string indexing, loops, lists, list indexing, or recursion this week.

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In CS Academy, complete problems below.
For each section, we list the required problems. The point values they are worth are shown here in parentheses like this: (2). They are the same points values shown in CS Academy.

Total points: 20
(Note: 18 points are visible now, and 2 will be added Friday. isDuplicatedNumber (from the collaborative portion of Friday recitation) has been added. All problems are now listed.)

• Unit 1: Basic Programming Constructs
  • 1.2.8 Code Tracing Exercise:
    • Code Tracing #1 (1)
    • Code Tracing #2 (1)
  • 1.3.9 Code Tracing Exercises:
    • Code Tracing #1 (1)
    • Code Tracing #2 (1)
  • 1.3.10 Guided Exercises:
    • getKthDigit (1)
    • setKthDigit (1)
  • 1.3.11 Section Exercises:
    • leftoverPizzaSlices (1)
    • numberOfBricks (1)
    • isGray (2)
  • 1.4.9 Code Tracing Exercises:
    • Code Tracing #2 (1)
  • 1.4.10 Guided Exercises:
    • closestEven (1)
  • 1.4.11 Section Exercises:
    • getGrade (1)
    • getInRange (1)
    • isDuplicatedNumber (2) (added Friday after recitation)
    • interpolate (2)
    • colorBlender (2)