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The.Algorithm.Design.Manual.Springer-Verlag.1998

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Lecture 14 - data structures for graphs<br />

Next: Lecture 15 - DFS Up: No Title Previous: Lecture 13 - dynamic<br />

Lecture 14 - data structures for graphs<br />

Listen To Part 14-1<br />

Problem Solving Techniques<br />

Most important: make sure you understand exactly what the question is asking - if not, you have no hope<br />

of answer it!!<br />

Never be afraid to ask for another explanation of a problem until it is clear.<br />

Play around with the problem by constructing examples to get insight into it.<br />

Ask yourself questions. Does the first idea which comes into my head work? If not, why not?<br />

Am I using all information that I am given about the problem?<br />

Read Polya's book How to Solve it.<br />

Listen To Part 14-2<br />

16-1: <strong>The</strong> Euclidean traveling-salesman problem is the problem of determining the shortest closed tour<br />

that connects a given set of n points in the plane.<br />

Bentley suggested simplifying the problem by restricting attention to bitonic tours, that is tours which<br />

start at the leftmost point, go strictly left to right to the rightmost point, and then go strictly right back to<br />

the starting point.<br />

file:///E|/LEC/LECTUR16/NODE14.HTM (1 of 12) [19/1/2003 1:35:05]

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