1 Problem 2.23 Solutions to Homework 4 Debasish Das EECS Department, Northwestern University ddas@northwestern.edu Definition 1 Majority element of an array A[1 … n]: An array is said to have a majority element if more than half of its entries are the same. A constraint on this problem is that only equality is defined on […]
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Program Analysis Term 1, 2015 Assessed Coursework 2 Due date: Submit to Engineering and Informatics School Office by 4pm on Wednesday 9th of December 2015. Return date: Marked coursework will be available for collection from the Engineering and Informatics School Office on Monday 11th of Jan- uary 2016. Assessment: Please answer all questions. A total
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1.A genorne can have a nuim.ber of alterations to its DiNA sequence. A corn1non type of alteration is a copvÄØ umber vanatÚ¥ on:some regions might have been GmplÀú ed oF deJe¹Åed. 1IlO Ineasure possible changes in copy nurnber, we can collect data 11¡Ãonl a comparative genomic hybridization(CGH)array.R`oughly,for each probeÚ¥ in the array that corresponds to
Q1 1. (a) def TotalAndCountAbove(A, k, i): if i == 0: return (0, 0) total, count = TotalAndCountAbove(A, k, i – 1) if A[i] >= k: total += A[i] count += 1 return total, count (b) T(n) = T(n-1) + O(1) if(n > 0) = O(1) (otherwise n = 0) (c) running time of Total&CountAbove
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Review of Priority Queues and Graphs David Weir (U of Sussex) Program Analysis Term 1, 2015 80 / 192 Priority Queue Abstract Datatype What does a priority queue look like? An ordered sequence of elements (a1,…,an) A linear data structure a1 is the first element in the queue an is the last element in the
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Program Analysis Problem Sheet 8 1. This question is concerned with the QuickSort algorithm. QS(A, i, j) : if j > i k ← Partition(A, i, j) QS(A, i, k − 1) QS(A, k + 1, j) Term 1, 2015 Partition(A, i, j) returns position k and permutes the elements of the subsequence A[i..j] such
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ECS 40 Program #8 (50 points, 1.5 hours ) Spring 2016 Due : Wednesday, May 25th at 11:59 in p8 of cs40a. New concepts: map, set, algorithm. File named: authors.csv, scrabble.cpp You are to write a program that will read a file of scrambled 7-letter strings, and then prints out the highest valued legal Scrabble
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Greedy Algorithms 1 David Weir (U of Sussex) Program Analysis Term 1, 2015 182 / 192 Horses for Courses Different problem solving strategies suite different kinds of problems Greedy method Dynamic Programming Network Flow David Weir (U of Sussex) Program Analysis Term 1, 2015 183 / 192 Five Representative Problems Different strategies suitable for different
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Opinion Extraction Report¶ length: about 2300 words Introduction¶ In this project, I will implement a opinion extractor to extract opinions from DVD Amazon reviews about several aspects like plot, characters, cinematography and dialogue.For example, if the review is “The dialogue is cringeworthy .”, then the opinion about dialogue should be “cringeworthy”. The opinion extractor makes
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Compilers and computer architecture: Semantic analysis Martin Berger Alex Jeffery October 2015 Recall the function of compilers Recall the structure of compilers Source program Lexical analysis Intermediate code generation Optimisation Syntax analysis Semantic analysis, e.g. type checking Code generation Translated program Semantic analysis One of the jobs of the compiler front-end is to reject ill-formed