'Int left' diaporamas de présentation

Chapter 14 Searching and Sorting

Chapter 14 Searching and Sorting. Go. Go. Section 1 - Sequential or Linear Search Section 2 - Binary Search Section 3 - Selection Sort Section 4 - Insertion Sort Section 5 - Merge Sort. Go. Go. Go. 1. Searches and Sorts.

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Data Structure

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Data Structure

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Classes (part II)

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Chapter 7 Sorting

Chapter 7 Sorting. Part I. 7.1 Motivation. list : a collection of records. keys : the fields used to distinguish among the records. One way to search for a record with the specified key is to examine the list in left-to-right or right-to-left order. Sequential search. Sequential Search.

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Algorithm Analysis & Complexity

Algorithm Analysis & Complexity. We saw that a linear search used n comparisons in the worst case (for an array of size n) and binary search had logn comparisons. Similarly for the power function -- the first one took n multiplications, the second logn. Is one more efficient than the other?.

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SEGMENT TREES

SEGMENT TREES. SEGMENT TREES. Originally introduced by Bentley(1977) Handle intervals on the real line whose end-points belong to a fixed set of N abscissae. A static structure with respect to the abscissae. i.e. Does not support insertions and deletions of abscissae.

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CSE 341 Lecture 4

CSE 341 Lecture 4. merge sort; basic efficiency issues Ullman 3.3 - 3.4 slides created by Marty Stepp http://www.cs.washington.edu/341/. Exercise.

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CSE 341 Lecture 4

CSE 341 Lecture 4. merge sort; basic efficiency issues Ullman 3.3 - 3.4 slides created by Marty Stepp http://www.cs.washington.edu/341/. Exercise.

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Oct 6-7

Oct 6-7. loops revisited I/O arrays. Loops: #1. Write a program to calculate and print the average of all the multiples of 3 from 3 up to (and including) 33333. Invariant: s contains 3 + 6 + 9 + ... + i and i is a multiple of 3

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Optimal Speedup on a Low-Degree Multi-Core Parallel Architecture (LoPRAM)

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Divide and Conquer

Divide and Conquer. Reduce the problem by reducing the data set. The argument being that a smaller data will easier to solve. Recursion. Quicksort outline. First choose some key from the list for which about half the keys will come before and half after. Call this key the pivot .

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