Data Structures and Algorithms Using Visual Basic.NET by Michael McMillan

By Michael McMillan

During this educational for VisualBasic.NET programmers, facts buildings and algorithms are provided as problem-solving instruments that don't require translations from C++ or Java. McMillan (computer details platforms, Pulaski Technical university) explains arrays, ArrayLists, associated lists, hash tables, dictionaries, timber, graphs, and sorting and looking with object-oriented representations. he's regularly useful, utilizing, for instance, timing assessments instead of gigantic O research to check the functionality of knowledge buildings and algorithms.

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The Remove method removes the first occurrence of the specified item in the collection. This method is also implemented with a linear search to find 30 COLLECTIONS the item to remove. Once the item is found, the remaining elements in the array are shifted up one space to close the gap left by the removed item. This shifting is handled by a Private method, ShiftUp. GetUpperBound(0) If (pArr(x) = item) Then pArr(x) = "" position = x Exit For End If Next ShiftUp(position) pCount -= 1 End Sub These comprise the primary methods needed by a custom Collection class.

When the data set being searched is relatively small, the linear search is the simplest to code and is usually fast enough. However, with large data sets, the linear search proves to be too inefficient and different search techniques are necessary. A more efficient search technique—the binary search—will be discussed in Chapter 2. The Remove method removes the first occurrence of the specified item in the collection. This method is also implemented with a linear search to find 30 COLLECTIONS the item to remove.

A graph is a set of nodes and a set of edges connecting the nodes. 7. Set Collection Operations. sometimes in a particular order, and the goal is to find the most efficient way to “traverse” the graph. Graphs are used in logistics and job scheduling and are well studied by computer scientists and mathematicians. You may have heard of the “Traveling Salesman” problem. This is a particular type of graph problem that involves determining which cities on a salesman’s route should be traveled to most efficiently complete the route within the budget allowed for travel.

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