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5. (4 pts) A personal identification number or PIN has 4 numbers in it. How many possible PINS are there if the numbers may be
5. (4 pts) A personal identification number or PIN has 4 numbers in it. How many possible PINS are there if the numbers may be used more than once per PIN but may not repeat next to each other (example 1221 is not ok since the 2's are repeated next to each other, but 1212 is ok)
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Advances In Databases And Information Systems Uropean Conference Adbis 2020 Lyon France August 25 27 2020 Proceedings Lncs 12245
Authors: Jerome Darmont ,Boris Novikov ,Robert Wrembel
1st Edition
3030548317, 978-3030548315
