Title:
Repeat-elements-arranged-issue
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Description: Set the set R = {r1, r2, ..., rn} n elements is to be arranged, wherein r1, r2, ..., rn may be the same.
Try to design an algorithm that lists all the different permutations of R.
That is, given n and n possible repeat of the elements to be ranked. Calculate the output of all different permutations of n elements.
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有重复元素的排列问题.txt
