1.4 Count the dictionaries

Exercise 1.4 Count the dictionaries

How many substitution dictionaries are possible for the cryptogram-style substitution in the previous exercise?

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Note that the alphabet that was used in the key.py file was

import string

alphabet = string.ascii_letters + string.digits 

Thus, the number of substitution dictionaries that are possible is \(62! \approx 2^{284.018}\).