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Element spelling solution
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module Element where | |
import Data.List (isPrefixOf, (\\), intercalate) | |
import Control.Monad (guard) | |
import Data.Char (toLower) | |
elements :: [(String, String)] | |
elements = | |
[ ("Ac", "Actinium") | |
, ("Ag", "Silver") | |
, ("Al", "Aluminum") | |
, ("Am", "Americium") | |
, ("Ar", "Argon") | |
, ("As", "Arsenic") | |
, ("At", "Astatine") | |
, ("Au", "Gold") | |
, ("B", "Boron") | |
, ("Ba", "Barium") | |
, ("Be", "Beryllium") | |
, ("Bh", "Bohrium") | |
, ("Bi", "Bismuth") | |
, ("Bk", "Berkelium") | |
, ("Br", "Bromine") | |
, ("C", "Carbon") | |
, ("Ca", "Calcium") | |
, ("Cd", "Cadmium") | |
, ("Ce", "Cerium") | |
, ("Cf", "Californium") | |
, ("Cl", "Chlorine") | |
, ("Cm", "Curium") | |
, ("Cn", "Copernicium") | |
, ("Co", "Cobalt") | |
, ("Cr", "Chromium") | |
, ("Cs", "Cesium") | |
, ("Cu", "Copper") | |
, ("Db", "Dubnium") | |
, ("Ds", "Darmstadtium") | |
, ("Dy", "Dysprosium") | |
, ("Er", "Erbium") | |
, ("Es", "Einsteinium") | |
, ("Eu", "Europium") | |
, ("F", "Fluorine") | |
, ("Fe", "Iron") | |
, ("Fl", "Flerovium") | |
, ("Fm", "Fermium") | |
, ("Fr", "Francium") | |
, ("Ga", "Gallium") | |
, ("Gd", "Gadolinium") | |
, ("Ge", "Germanium") | |
, ("H", "Hydrogen") | |
, ("He", "Helium") | |
, ("Hf", "Hafnium") | |
, ("Hg", "Mercury") | |
, ("Ho", "Holmium") | |
, ("Hs", "Hassium") | |
, ("I", "Iodine") | |
, ("In", "Indium") | |
, ("Ir", "Iridium") | |
, ("K", "Potassium") | |
, ("Kr", "Krypton") | |
, ("La", "Lanthanum") | |
, ("Li", "Lithium") | |
, ("Lr", "Lawrencium") | |
, ("Lu", "Lutetium") | |
, ("Lv", "Livermorium") | |
, ("Md", "Mendelevium") | |
, ("Mg", "Magnesium") | |
, ("Mn", "Manganese") | |
, ("Mo", "Molybdenum") | |
, ("Mt", "Meitnerium") | |
, ("N", "Nitrogen") | |
, ("Na", "Sodium") | |
, ("Nb", "Niobium") | |
, ("Nd", "Neodymium") | |
, ("Ne", "Neon") | |
, ("Ni", "Nickel") | |
, ("No", "Nobelium") | |
, ("Np", "Neptunium") | |
, ("O", "Oxygen") | |
, ("Os", "Osmium") | |
, ("P", "Phosphorus") | |
, ("Pa", "Protactinium") | |
, ("Pb", "Lead") | |
, ("Pd", "Palladium") | |
, ("Pm", "Promethium") | |
, ("Po", "Polonium") | |
, ("Pr", "Praseodymium") | |
, ("Pt", "Platinum") | |
, ("Pu", "Plutonium") | |
, ("Ra", "Radium") | |
, ("Rb", "Rubidium") | |
, ("Re", "Rhenium") | |
, ("Rf", "Rutherfordium") | |
, ("Rg", "Roentgenium") | |
, ("Rh", "Rhodium") | |
, ("Rn", "Radon") | |
, ("Ru", "Ruthenium") | |
, ("S", "Sulfur") | |
, ("Sb", "Antimony") | |
, ("Sc", "Scandium") | |
, ("Se", "Selenium") | |
, ("Sg", "Seaborgium") | |
, ("Si", "Silicon") | |
, ("Sm", "Samarium") | |
, ("Sn", "Tin") | |
, ("Sr", "Strontium") | |
, ("Ta", "Tantalum") | |
, ("Tb", "Terbium") | |
, ("Tc", "Technetium") | |
, ("Te", "Tellurium") | |
, ("Th", "Thorium") | |
, ("Ti", "Titanium") | |
, ("Tl", "Thallium") | |
, ("Tm", "Thulium") | |
, ("U", "Uranium") | |
, ("V", "Vanadium") | |
, ("W", "Tungsten") | |
, ("Xe", "Xenon") | |
, ("Y", "Yttrium") | |
, ("Yb", "Ytterbium") | |
, ("Zn", "Zinc") | |
, ("Zr", "Zirconium") | |
] | |
search :: String -> [[(String, String)]] | |
search [] = [[]] | |
search word = do | |
(abbrev, full) <- elements | |
let abbrev' = map toLower abbrev | |
guard (abbrev' `isPrefixOf` word) | |
rest <- search (word \\ abbrev') | |
pure ((abbrev, full):rest) | |
main :: IO () | |
main = do | |
word <- map toLower <$> getLine | |
let results = search word | |
display result = putStrLn . concat $ | |
[ concatMap fst result | |
, " (" | |
, intercalate ", " (map snd result) | |
, ")" | |
] | |
mapM_ display results |
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