81 lines
1.7 KiB
Plaintext
81 lines
1.7 KiB
Plaintext
{
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Solutions to the Advent Of Code.
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Copyright (C) 2023 Stefan Müller
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This program is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>.
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}
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unit ULensLibrary;
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{$mode ObjFPC}{$H+}
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interface
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uses
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Classes, SysUtils, USolver;
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type
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{ TLensLibrary }
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TLensLibrary = class(TSolver)
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private
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function CalcHash(const AInput: string): Byte;
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public
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procedure ProcessDataLine(const ALine: string); override;
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procedure Finish; override;
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function GetDataFileName: string; override;
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function GetPuzzleName: string; override;
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end;
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implementation
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{ TLensLibrary }
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function TLensLibrary.CalcHash(const AInput: string): Byte;
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var
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c: Char;
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begin
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Result := 0;
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for c in AInput do
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Result := ((Result + Ord(c)) * 17) and 255;
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end;
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procedure TLensLibrary.ProcessDataLine(const ALine: string);
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var
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split: TStringArray;
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s: string;
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begin
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split := ALine.Split(',');
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for s in split do
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Inc(FPart1, CalcHash(s));
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end;
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procedure TLensLibrary.Finish;
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begin
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end;
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function TLensLibrary.GetDataFileName: string;
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begin
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Result := 'lens_library.txt';
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end;
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function TLensLibrary.GetPuzzleName: string;
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begin
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Result := 'Day 15: Lens Library';
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end;
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end.
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