Consider the sequence of numbers W,, W,, W3, Wg... defined recursively: W, = 1, W, = 2, W3 = 3, W_=W3+(2•W-1 -Wa), for n2 4. Vn-3), for n 2 4. and the following recursive Java method for computing the number W,: public static int recW(int n) { if (n <= 0 ) { return 0; } else if (n <= 3) { return n; } else { return ( recW(n-3) * (2 * recW(n-1) - recW(n-3)) ); The method recW has an obvious inefficiency, which can be easily removed in the following way.
Consider the sequence of numbers W,, W,, W3, Wg... defined recursively: W, = 1, W, = 2, W3 = 3, W_=W3+(2•W-1 -Wa), for n2 4. Vn-3), for n 2 4. and the following recursive Java method for computing the number W,: public static int recW(int n) { if (n <= 0 ) { return 0; } else if (n <= 3) { return n; } else { return ( recW(n-3) * (2 * recW(n-1) - recW(n-3)) ); The method recW has an obvious inefficiency, which can be easily removed in the following way.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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