Solutions

The median on the exam was a 50/60. This distribution gives you a sense of how you are doing in the class:

Here is the exam and the exam solutions:

Regrade Requests

Sometimes we make mistakes grading. If you notice that we incorrectly read your solution or incorrectly applied a deduction, we can regrade it. However you must follow these instructions:

1. Write an explanation of the mistake in your gradescope regrade request.
2. Submit your request by Friday Nov 11th at 5pm.
3. We reserve the right to regrade the entire exam.

Logistics

Topics

The midterm covers the material presented in class through the lecture on Monday, Oct 24th. Specifically you will be responsible for:

1. Functions and Pass by Reference
2. Use of Collections (Maps, Sets, Stacks, Queues, Vectors and Grids)
3. Recursion (Definition and Fractals)
4. Recursive Exploration and Backtracking
5. Big O

The bulk of the midterm will be build on the concepts you covered in the assignments you have completed up to this point in the course (Life, Serpinski and MetaAcademy).

There will be four or five questions on the exam. The first question will ask you to trace a mystery function and determine runtime Big-O. The remainder will be programming tasks (where you write your solutions by hand).

Things that will not be on the midterm: structs, pointers, defining classes or linked lists.

We put together handouts on the topics which we will expect you to know:

Strategies

Exams are exciting, and a good chance to learn. Sometimes they can feel competitive. Remember though that in the long term you aren't competing against the other people in the classroom. In fact they will probably be your team mates in the post Stanford world. The only race is with yourself. We don't curve the exam. If everyone does a great job of demonstrating that they understand the material, everyone will get a better grade.

Here is a printable handout with a complete list of all CS106B library functions you may find useful on the exam and a handout on exam strategies:

Practice Midterms

We will post more practice exams (and solutions) as we get closer to the exam. If you want more problems to work on, try the section problems. Most of them are old exam questions.