13 lines
232 B
OCaml
13 lines
232 B
OCaml
type 'a queue = { front : 'a list; back : 'a list }
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type 'a result =
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| Error of string
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| Success of 'a
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type 'a stack =
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| Empty
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| Stacked of 'a * 'a stack
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type 'a tree =
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| Leaf
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| Branch of 'a * 'a tree list |