Question
1. Elliot from Mr. Robot wants to open a safe containing some secret info about the Evil Corp. The safe is protected by a 6
1. Elliot from Mr. Robot wants to open a safe containing some secret info about the Evil Corp. The safe is protected by a 6 character password. Each character can be an lowercase alphabet [a-z], digit [0-9] or a symbol from [! @ *].
(a) How many possible combinations will Elliot have to try ?
(b) Elliot knows that EITHER the first two characters are J1 OR the last two characters are !!. How many combinations should he try ?
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SQL Instant Reference
Authors: Gruber, Martin Gruber
2nd Edition
0782125395, 9780782125399
