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Unzip this file in your cs directory. After CPSC a or b or equivalent.
The minimal Point class has public instance variables x and y allowing direct access, as well as a useful instance method coord boolean isX that retrieves one of x and y depending on whether isX is true or false. I will clarify the problems if you have trouble understanding them, but because this is an exam, I cannot help you solve the problems.
You should do the required reading, textbook exercises, and other preparation before beginning programming assignments, since it is generally much more efficient to test, debug, and run a program that you hadnouts planned carefully than to try to do the planning as you go.
The code provided compiles and runs. The practice sessions are kept away from “windows” type programming to ensure that mastering the basic concepts is not clouded by unnecessary details at this stage. Please work on the homework bit by bit over the week, rather than leaving it to a marathon session the night before it is due. You may also follow the links from the course page and this exam 2 page to directly linked materials, e. The code initially provided ignores the parameters x0, y0, x1, y1 that specify the size of the region in which to draw, and instead only draws short line segments centered around each point.
Change the marked lines of code so that the red and blue lines extend all the way to the edges of the region, and also provide the correct values for these parameters in the recursive calls. Amittai Aviram Office Hours: For instance, the right child corresponds to the point with coordinates Other instructors teaching this course use the Scheme programming language.
On the other hand, programs are concrete manifestations of many abstractions underlying Computer Science, and thus it is helpful to use a programming language to convey many of the ideas in this course. Again, on the left this is visualized with lines, this time dark red and horizontal; note that they extend from the edges to vertical “root line”.
Be sure your code compiles at all times! Now, consider the children of the root node on level 1, which are y-nodes dark red. Initially, many parts of the applet are not yet functional. Here’s a snapshot of the exam 2 applet in action, with hand-drawn annotations: The premise is that a good grounding in structured programming will be required when moving into the object-oriented domain that would be covered in depth in a later course.
Either the x or y coordinate is used for splitting, alternating by level. The resulting directory exam2 will contain the following files: Please be very careful to protect your work from the access of others.
Try to define the each function in terms of the others as succinctly as possible. Once your methods work, the tree drawn with “variable” drawing style should match the way it is drawn in the sample applet. It will be more important for you to be pretty good at thinking abstractly. Your browser does not appear to support applets. Recall that you can run any applet in the appletviewer by providing the URL of the page containing the applet.
To do so for the sample exam applet, type appletviewer http: Once your methods work, the text displayed above the tree should correctly indicate whether the tree is symmetric. Details on how to use Haskell and GHC will be forthcoming. Its purpose is to teach the principles of computing and information processing, with attention given to all levels of the computing hierarchy: Tree traversals The solution to the extra-credit problem on homework 6 used a queue to print out the nodes of a tree in level-order: It should return whether left and right subtrees of the tree have shapes that are mirror images of each other.
CS is the basic introductory course for Computer Science; in particular, it is not a “service” course on programming, or computer literacy, or whatever.
CS – INTRODUCTION TO DIGITAL
To draw a tree, we draw the circle for the root, and then each of the two subtrees below such that they touch the vertical line through the center of the root circle from the left and the right, respectively.
Else, sort the vector of points from index start. Include the answers with your written submission. After covering file-handling and unions and structures, the course will finally introduce the concept of classes and public and private members with an introduction to function overloading.
For higher-dimensional K-d trees, one rotates through all dimensions by level, e. This is not a programming course per se, indeed an underlying theme is that Computer Science is more than just programming. CS – Introduction to Programing. However, you should study the other files as well, in particular KdTree.
TBD CS is the basic introductory course for Computer Science; in particular, it is not a “service” course on programming, or computer literacy, or whatever.
The premise is that a good grounding in structured programming will be required when moving into the object-oriented domain that would be covered in depth in a later course. The Haskell implementation that we will use is called GHCand it is installed in the Department’s educational computing cluster call the Zoowhich is located on the third floor of A. Include your answer with your written submission. If you choose to upload your written answers, be sure to follow these rules, otherwise you will lose points: Complexity of tree and heap operations What is the worst-case time complexity of each of the following operations?
List the order in which the values of the following tree would get printed: Next, on level 2 we only have one node, an x-node again, and its blue vertical splitting line ends at the horizontal “parent line”.
All programming problems contribute to the same applet, and you can do them in any order, though they appear roughly in order of increasing difficulty. You can run it from within Eclipse by opening KdTreeApplet.