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module Y2019.M02.D20.Exercise where
Okay, from a set of letters, we have words that can be formed from those
letters. Great. Now we want to find specific words of lenght n and that has
certain patterns.
Today, we'll look at words that start with _, and later we'll generalize words
of a__ix_q, or whatever patterns.
import Data.Set as Set
import Y2019.M02.D18.Exercise
wordsOfLength :: Dict -> String -> Int -> Set String
wordsOfLength dict ltrs n = undefined
wordsStartingWith :: Dict -> String -> String -> Set String
wordsStartingWith dict ltrs startsWith = undefined
wordsStartingWithOfLength :: Dict -> String -> String -> Int -> Set String
wordsStartingWithOfLength dict ltrs startsWith n = undefined
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