
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Q 3
Computer Science
Modify the permutation code such that the program can handle finding unique passwords of string that contains potentially duplicate letters.
How many unique passwords are there that use all the letters of "eelrstt"?
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