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Add interface to UnionFind.
author Ziv Scully <ziv@mit.edu>
date Mon, 24 Nov 2014 20:41:24 -0500
parents 4d519baf357c
children
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datatype list t = Nil | Cons of t * list t

val length : t ::: Type -> list t -> int

val rev : t ::: Type -> list t -> list t