Big Oh notation, why binary search takes O(log n) time, exponential time algorithms (recursive fibonacci the divide-and-conque paradigm revisited, the quickSort algorithm. Lecture notes: March 25th, march 27th. Discussion section: will present sorting without comparisons,. G., counting sort, bucket sort, radix sort, etc. Week 8, 3/30-4/3: Greedy Algorithms. The importance of the choice of a pivot in quickSort, choosing the pivot at random, las Vegas and Monte carlo randomized algorithms, The job scheduling problem.
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is the basic version covered in class. and are slight variations (both 2 and 3 don't bother putting left endpoints in the dictionary, and 3 works even when one or more intervals share endpoints) week 6, 3/2-3/6: The basketball searching Problem. The central role of search in cs, linear search, binary search, recursion, the divide-and-conquer paradigm Python stuff: review of lists, file input. Sample code: usm : linear search on a randomly generated list, : linear search on a list obtained via interaction with the user, : linear search on a list obtained from a text file; the search is timed, : binary search on a list obtained from. Discussion section: will (i) discuss HW6 and help you get you started on this homework and (ii) teach you how to do file input in Python. Week 6, 3/9-3/14: Running Time Analysis. Introduction to running time analysis, primitive operations, translating Python code into machine code, worst case anaylysis, examples of linear search, bubble sort, and binary search. Python Stuff: Generating random input, timing your programs. Sample code: : "profiles" Python code in order to measure the running time of linear search and binary search. Lecture notes: March 9th, march 11th Discussion section: will (i) discuss HW7 and help you get you started on this homework and (ii) teach you how generate a random bitonic list of a desired size. Week 7, 3/23-3/27: The sorting Problem.
Discussion sections will start meeting regularly, the week of Jan 26th. This course has two main goals: (i) to teach students practical programming skills in a scripting language ( Python is our choice this semester) and (ii) to introduce students to algorithm design and analysis, focusing on algorithmic idioms such as greedy algorithms, divide dom and conquer. The course also provides a first exposure to relational databases and web programming. The overall structure of the course is: 5 weeks for Python programming Exam 1 : Friday, feb 27th 5 weeks for data structures and algorithms Exam 2 : Friday, april 10th 4 weeks for applications Final Exam : Monday, may 11th, 7:30 am Prof. Cremer will lead the first five weeks, Prof. Pemmaraju the second five weeks and the two instructors will split the last four weeks. 4/8 class programs: Here are three python implementations of the greedy endsFirst algorithm.
As a path to success, you should first complete a version of "AddImage." that works when the scaleFactor.0. This is much easier and was essentially given in class. Make your best attempt at scaling the image as well, essay but if you don't complete that by monday, you won't be penalized much and you'll get a chance to finish the scaling as part of HW3. 1/25: Two small changes were made to the homework 2 assignment (the arguments to addPicturetocollage, and requirement to provide a jpg collage as part of your icon submission) 1/23: Homework 2 is available, due friday, 1/30. 1/23: Sample image and sound files are contained in directory /opt/jes/Mediasources on the cs linux machines 1/23: Modified programming assignment submission requirements - only icon submission is required, not hardcopy 1/23: Added information about using jes on cs linux machine, transferring files between cs and. 1/22: Office hours: Cremer T 9-10, Th 1-2, pemmaraju m 10-11, w 2-3, curtis Th 11-12, f 11-12. 1/21: Homework 1 is available, due monday, 1/26. 1/19: The discussion section on tuesday, 1/20 will not meet.
2/26 Discussion section on Monday(3/2) and tuesday(3/3) will (i) get you started on HW6 and (ii) teach you how to do file input in Python. 2/20 HW4 (and HW2 and HW3) solution is available in the homework section. 2/18 HW5 is available, due wednesday, feb. 2/6 HW4 is available, due friday, feb. 2/2 HW3 is available, due friday, feb. 1/28 1/30: HW2 is due monday, feb. 2 instead of Friday, jan. HW3 (available 2/1) will simply add a couple of additional functions to hw2. For a significant proportion of the class, the "scaling" portion of "AddImagetocollage" will be pretty difficult.
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4/8, quiz 2 and solutions posted. 4/3 Here is a study guide for quiz 2 and Exam. 4/2 Exam 2 is on Friday, april 10th. There will be a quiz (quiz 2) in the discussion sections on Monday (4/6) and tuesday (4/7). 3/12 The "What to submit" section of HW7 has been updated. 3/11 Sriram's Monday office hours are moved to Thursdays. So his office hours are now W 2-3 and Th 10-11.
3/9 Check out HW7, new table code and lecture notes for the week of 3/9-3/13. 3/4 Here is the "skeleton" of my solution to homework. I obtained this by leaving function headers and comments in my code, so that you know how my code is organized. 3/4 I have posted a number of Python programs pertaining to linear and binary search (see lecture notes and other class supplements ). Read and experiment with these programs 2/26 to prepare for next week (3/2-3/6) read pages 89-93 (Chapter 10, until, but not including.7) on Lists from Think python: How to Think like there a computer Scientist.
Student in computer science and an expert Python programmer (more so than the other instructors!) so you should make use of his expertise. 5/6, added file, which contains a very useful function for part two of HW11. The function constructs a url for a google maps query to determine the driving distance between two cities, uses the url to get the distance, and then returns. 5/1, hW11 is available, due friday, may. I also posted my program code that serves as a good basis for HW11. It's just like the code i demonstrated in class but has been cleaned up a bit, documented with more comments, etc.
You should be using the posted. Dijkstra's shortest path algorithm implementation for. 4/22, some instructions on how to create and view kml files. 4/22, some code to help with hw10 is here. This shows (i) partial code for how to parse the data file and build a graph from it and (ii) how to produce an output kml file. 4/8, python code for the dictionary-based implementation of greedy endsFirst covered in class on 4/8 is available below. 4/8, the due date for HW9 has been changed to wed., 4/15.
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I'm trying to convert the items in a list of multiple types to floats, so that. L "29.3 "tea "1 none,.14 would become. D.3, "tea 1, none,.14 my attempt is as follows: l ". Python python-3.x types type-conversion try-except. 22C:80 Programming for Informatics 12:30-1:20 mwf, room 205 mlh, instructors: James Cremer, 14d mlh, office hours: T 9-10, Th 1-2 sriram. Pemmaraju, 101g mlh, office hours: M 10-11, w 2-3. Curtis iii, office: 201c global mlh, office hours: Th 11-12, f 11-12. There are two discussion sections associated with this course: Section A01 11:30-12:20 M 301 mlh, section A01 11:30-12:20 T 301 mlh don will lead both of these discussion section meetings, grade some of the homework, and hold regular office hours. He is.
I post plan the entries in reverse chronological order. . you can always scroll down to see earlier entries, but the current entry will be at the top. There will be a homework assignment almost every week, posted in the column to the right. . The far right column is reserved for other material I want to add. You are expected to come to class prepared to discuss the reading assignment. It is a waste of your time to go over material which you have read in preparation for class. No homework due this week, no homework due this week. Trying to convert to numbers with try except.
number of leap years. . Wikipedia article for clarification: "Years that are evenly divisible by 100 are not leap years, unless they are also evenly divisible by 400, in which case they are leap years.". Reading Assignments for August 31, 2005. I will post an assignment here every week. . From time to time, i will also post some other material (what the midterm will cover, etc). .
Sissa addressed the king: "Majesty, i would be happy if you were to blood give me a grain of wheat to place on the first square of the chessboard, and two grains of wheat to place on the second square, and four grains of wheat. In a single expression, compute the number of grains of wheat that Sissa requested. . (Related unassigned problems: text exercises.1,.2). Drawing a square: Exercise.6. . Boolean Expression: Exercise.8. . to present your work, you'll be provided a, b, and, n vectors of appropriate respective values to cover all cases (e.g. Sum greater and b nonnegative, sum greater and b negative, etc.).
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Homework 2, cS 107 - introduction to Scientific Computation. Homework 2, due: Wednesday 9/11 at the beginning of class. For this homework, you will place all of your answers in a file hw2.m. Wheat on a chessboard: In, the math book: From Pythagoras to the 57th Dimension, 250 Milestones in the. History of Mathematics, clifford Pickover writes: The problem of Sissa's chessboard is notable in the history of mathematics because it has vietnamese been used for centuries to demonstrate the nature of geometric growth or geometric progressions, and it is one of the earliest mentions of chess. The Arabic scholar Ibn Khallikan in 1256 appears to be the first author to discuss the story of Grand vizier Sissa ben Dahir, who, according to legend, was asked by the Indian King Shirham what reward he wanted for inventing the game of chess.