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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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25
Task/Roman-numerals-Encode/ECL/roman-numerals-encode.ecl Normal file
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RomanEncode(UNSIGNED Int) := FUNCTION
SetWeights := [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1];
SetSymbols := ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I'];
ProcessRec := RECORD
UNSIGNED val;
STRING Roman;
END;
dsWeights := DATASET(13,TRANSFORM(ProcessRec,SELF.val := Int, SELF := []));
SymbolStr(i,n,STRING s) := CHOOSE(n+1,'',SetSymbols[i],SetSymbols[i]+SetSymbols[i],SetSymbols[i]+SetSymbols[i]+SetSymbols[i],s);
RECORDOF(dsWeights) XF(dsWeights L, dsWeights R, INTEGER C) := TRANSFORM
ThisVal := IF(C=1,R.Val,L.Val);
IsDone := ThisVal = 0;
SELF.Roman := IF(IsDone,L.Roman,L.Roman + SymbolStr(C,ThisVal DIV SetWeights[C],L.Roman));
SELF.val := IF(IsDone,0,ThisVal - ((ThisVal DIV SetWeights[C])*SetWeights[C]));
END;
i := ITERATE(dsWeights,XF(LEFT,RIGHT,COUNTER));
RETURN i[13].Roman;
END;
RomanEncode(1954); //MCMLIV
RomanEncode(1990 ); //MCMXC
RomanEncode(2008 ); //MMVIII
RomanEncode(1666); //MDCLXVI