# Cs202 lecture notes

The second loop is a for loop that is responsible for finding the value of the maximum input number. We will rename two of the values to give them more descriptive names.

All 5 programs must be submitted and received a passing score to pass CS 6. This is simply to keep the syntax clean and to hide the fact that auxiliary parameters are needed.

The sequence of nodes R,X,Y is not a path because the sequence does not satisfy the "parenthood" property R is not the parent of X.

This means discussing the efficiency of the approach as well as the efficiency of the resulting code. You MUST call the correct version of delete: Because n is an integer, and the recursive call reduces n by just one, it is not possible to skip over the base case.

For example, if the input to our program is the sequence 2, 5, 6, 4, 1, then the program should tell us that the maximum number is 6, and that it occurs in position 3 of the input. Here is where the wishful thinking comes in: Focus on program style and comments: In fact, no sorting algorithm that uses comparison between elements can be faster than n log n. There are, of course, other choices for c0 and n0. Be careful to not plagiarize. It is pronounced "Big Oh of n squared.

That means that unless we treat specially the case where n is zero, our function will not work when asked to count the number of 42s in an array of zero items.

Oh alright, it's legal; it's just that it's almost never what you want, and will often lead to a segmentation fault or worse. For example, selection sort is an O n2 algorithm. There are 5 programming assignments. Complexity Complexity refers to the rate at which the storage or time grows as a function of the problem size.

Aside from the EOF condition, two variables capture the state of the computation each time through this loop: The following functions are often encountered in computer science Big Oh analysis: This is called polynomial growth.

The depth of a node is sometimes called its level. Asymptotic Analysis Asymptotic analysis is based on the idea that as the problem size grows, the complexity can be described as a simple proportionality to some known function. This is called constant growth. A comparison tree sometimes called a decision tree is a binary tree in which, at each internal node, a comparison is made between two keys and in which each leaf represents a sorted arrangement of keys.

Not a Complete Binary Tree. Without this statement, subsequent code will bomb if no numbers are entered. If we had a function that would add up all but the very last number in the array, then we would simply have to add the last number to that sum and we would be done.

Well, then, why ever use Merge Sort. A full binary tree FBT is a binary tree in which each node has exactly 2 non-empty children or exactly two empty children, and all the leaves are on the same level.

Moving toward the base case alone is not sufficient; it must also be true that the base case is reached in a finite number of recursive calls.

The constant time might be used to prompt the user for a filename and open the file. Merge Sort performance is the same for average and worst cases. We will convert each of the program's three loops into a tail recursive subprogram. The height of the tree is the same as the height of its root R. This means that we must not try to describe the absolute time or storage needed. Programming Style with Classes There are several popular conventions for naming classes: The ability to convert recursion to iteration is often quite useful, allowing the power of recursive definition with the often greater efficiency of iteration.

OK, that wasn't too bad. Because libfact is a library routine, we may assume that it works properly, in this case calculating the factorial of n. SYLLABUS. CS Programming Systems. Lecture notes and power point slides are on D2L. Bring your PSU ID card to all lectures and labs; it will be used for attendance purposes.

Handouts: Every student in CS is. The midterm is open-book/open-notes/open laptop (no internet). It will tentitavely take place on Wednesday, November 7, Advice on applying machine learning: Slides from Andrew's lecture on getting machine learning algorithms to work. View Notes - lecture15 from CS at California State University Los Angeles.

CS Lecture 15 John Hurley Cal State LA JUnit on the Final The programming questions on the Sample and actual final. Contents Tableofcontentsii Listofﬁguresxvii Listoftablesxix Listofalgorithmsxx Prefacexxi Syllabusxxii Resourcesxxvi Internetresourcesxxvii Lectureschedulexxviii.

Doing research in machine learning can be challenging! Consequently, we will be able to work with only a small number of students, and enrollment will be limited. CSLecturenotes Andrew Ng Supervised learning Let’s start by talking about a few examples of supervised learning problems. Suppose we have a dataset giving the living areas and prices of 47 houses.

Cs202 lecture notes
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CMSC Lecture Notes: Trees