Summer 2014 Exam 1

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2050 VLSB, 7pm Thursday (July 10, 2014)


  • pencil and eraser
  • one front and back 8.5x11" cheatsheet
  • a copy of The Rules
    • You can write on your copy of The Rules (8.5x11"), giving you 2 cheatsheets total.

Don't bring

  • Any sort of electronics
  • Cell phones are okay, but must be turned off for the duration of the exam


Bolded topics are going to have in-depth questions.

Side skills

  • Identifying the Operator and Operands
  • Drawing Function Boxes
  • Identifying Domain and Range
  • Drawing Box and Pointers
  • Environment Diagrams!
  • Identifying the Theta of a function

Practice Problems

Summer 2014 Exam 1 Warmup Questions

Practice problems (From previous semesters. Easier than exam questions usually.)

Guerrilla #1 - Higher Order Functions (Solutions)

Guerrilla #2 - Recursion (Solutions)

(Guerrilla section go from fundamental questions to midterm level and beyond.)

Problems to Focus on from Past exams

  • Fall 2011
    • Midterm 1:
      • 4 (Data Abstraction)
    • Midterm 2:
      • 4b (Overlap - string processing and recursion)
  • Summer 2012
    • Midterm 1:
      • 1 (Order of evaluation)
      • 2a, 2b (Order of evaluation and lambdas)
      • 3a, 3c (Orders of growth: replace O with $\Theta$)
      • 6 (deep linked_lists and tree recursion: replace deep_irlist with a deep linked_list)
    • Final:
      • 2c (Orders of growth and recursion)
  • Fall 2012
    • Midterm 1:
      • 1 (Functional calls and What Would Python Do?)
      • 2 (Environment diagrams and lambdas)
    • Midterm 2:
      • 4b (Strings and tree recursion)
    • Final:
      • 2a (Environment diagram)
  • Spring 2013
    • Midterm 1:
      • 2 (Environment diagrams, lambdas)
      • 3 (Higher-order functions)
    • Midterm 2:
      • 2b (Environment Diagram)
    • Final:
      • 4a (HOF and lambdas)
  • Summer 2013
    • Midterm 1:
      • 1 (Function calls and What Would Python Do?)
      • 2 (Lambda functions)
    • Final:
      • 3b (Environment diagram)
  • Fall 2013
    • Midterm 1:
      • 1 (Function calls and What Would Python Do?)
      • 2 (Environment diagrams)
      • 3b, 3c (HOF and lambdas)
      • 3d (Strings and iteration)
    • Final:
      • 3a, 3c (Tree recursion)
  • Spring 2014
    • Midterm 1:
      • 1 (HOF and What Would Python Do?)
      • 2 (Environment Diagram)
      • 3d (Tree recursion)
    • Midterm 2:
      • 3 (Data Abstraction)

Staff Guides and Websites

Guides by Youri

Jessica's Domain/Range guide to cons, car, and cdr on Discussion 3

Ajeya's Recursion Guide

Piazza's Useful posts and guides

Andrew's tips that apply for this midterm

Andrew draws an environment diagram (original problem (and solutions))

Orders of Growth and Function Runtime guide

How to study

Here is an old algorithm for studying for tests:
For each topic on the exam, find problems on them and do them.
 If you can solve them on your own, move on.
 Else if you are stuck, look at the solution and figure out if you
 are missing a trick or if you do not understand the concepts.
   If the problem is that you are stuck on some random trick,
     just learn the trick.
       Stare at the solutions, ask Piazza, your TA, etc.
   Questions you should ask at this stage:
     What is the problem asking me to do?
     How was I suppose to follow the instructions
       to solve the problem?
     What part of the problem do I not understand?
     What is the fastest way to clear up that misunderstanding?
  Then if you think you are still stuck conceptually, review
  and learn the concept, however you learn best.

  Suggestions for picking up concepts quickly (~1-2 hours):
    Discussion notes typically have a very concise recap of the
      thing they are going over.
    There are guides for particularly tricky things on the wiki,
      like Hanoi, powerset, etc.
      Find them and go over them.
    Ask a TA: "what is the best way to learn X?"
    If these do not work and you are still shaky after an hour
    or two, it might be worth watching a lecture or reading
    the notes. Be sure to try out some more problems as you're learning!