1. What is the most elegant way to create/initialize a nested vector,
such as to represent a double-dimensioned array?
2. There's get-in for nested structures and get for flat. There's
update-in for nested structures, why not plain update for flat?
3. What would you predict to be the most efficient way to implement a
(non-destructive) double-dimensioned array?:
a) A vector of vectors.
b) A hash map that correlates [i j] pairs with values.
c) A flat vector, and write lookup and assoc functions that use
i*columns+j as the index.
Thanks.
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