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Problem
Consider the set of all C++ reserved words.3 Consider these words as strings of 16 characters, where words less than 16 characters long are filled with blanks on the right.
(a) Devise an integer-valued function that will produce different values when applied to all the reserved words. [You may find it helpful to write a short program that reads the words from a file, applies the function you devise, and determines what collisions occur.]
(b) Find the smallest integer hash_size such that, when the values of your function are reduced by applying % hash_size, all the values remain distinct.
(c) [Challenging] Modify your function as necessary until you can achieve hash_size in the preceding part to be the same as the number of reserved words. (You will then have discovered a minimal perfect hash function for the C++ reserved words, mapping these words onto a table with no empty positions.)
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