Write a recursive method called permut that accepts two integers n and as parameters and returns the
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Write a recursive method called permut that accepts two integers n and as parameters and returns the number of unique permutations of r items from a group of n items. For given values of n and r, this value P(n, r) can be computed as follows:
For example, permut(7, 4) should return 840 . It may be helpful to note that permut(6, 3) returns 120 , or 840 / 7.
Transcribed Image Text:
n! P(n, r) = (п — г)!
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Related Book For
Building Java Programs A Back To Basics Approach
ISBN: 9780135471944
5th Edition
Authors: Stuart Reges, Marty Stepp
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