Data structures and algorithms in C++
Data structures and algorithms in C++
2nd Edition
ISBN: 9780470460443
Author: Goodrich
Publisher: WILEY
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Chapter 5, Problem 7C

Explanation of Solution

Non-recursive algorithm:

Algorithm EnumPermutation(Stack)

    Input: A stack

    Output: Number of permutations

  while !isEmpty(Stack) do

      set product <- product x pop(stack)

  endwhile

  return product

end

Explanation:

  • A number of permutations can be calculated as follows,

Number of permutations = n!= n×(n1)

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