Added solution for "Day 3: Gear Ratios", part 1, and added test project
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@ -41,6 +41,10 @@
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<Filename Value="USolver.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit>
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<Unit>
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<Filename Value="solvers\UGearRatios.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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@ -25,7 +25,7 @@ uses
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{$ENDIF}
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Classes, SysUtils, CustApp,
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USolver,
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UTrebuchet, UCubeConundrum;
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UTrebuchet, UCubeConundrum, UGearRatios;
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type
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@ -52,6 +52,7 @@ begin
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TTrebuchet.Run;
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TCubeConundrum.Run;
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engine := TSolverEngine.Create;
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engine.RunAndFree(TGearRatios.Create);
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engine.Free;
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end;
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@ -53,7 +53,6 @@ type
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procedure Init; virtual;
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procedure ProcessDataLine(const ALine: string); virtual; abstract;
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procedure Finish; virtual; abstract;
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procedure Free; virtual;
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function GetDataFileName: string; virtual; abstract;
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function GetPuzzleName: string; virtual; abstract;
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function GetResultPart1: Integer; virtual;
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@ -80,11 +79,6 @@ begin
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FPart2 := 0;
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end;
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procedure TSolver.Free;
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begin
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Free;
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end;
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function TSolver.GetResultPart1: Integer;
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begin
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Result := FPart1;
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@ -0,0 +1,147 @@
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{
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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 UGearRatios;
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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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const
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CDigitChars = ['0'..'9'];
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CNonSymbolChars = ['0'..'9', '.'];
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type
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{ TGearRatios }
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TGearRatios = class(TSolver)
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private
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FPreviousLine, FLine: string;
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procedure ProcessDataLineTriplet(const APreviousLine, ALine, ANextLine: string);
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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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{ TGearRatios }
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procedure TGearRatios.ProcessDataLineTriplet(const APreviousLine, ALine, ANextLine: string);
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var
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i, numberStart, numberLength, partNumber: Integer;
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inNumber, isPartNumber: Boolean;
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begin
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inNumber := False;
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for i := 1 to ALine.Length do
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begin
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// Checks if number starts.
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if not inNumber and (ALine[i] in CDigitChars) then
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begin
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inNumber := True;
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numberStart := i;
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// Checks for a symbol in the column before the first digit.
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isPartNumber := (i > 1) and
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(not (APreviousLine[i - 1] in CNonSymbolChars)
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or not (ALine[i - 1] in CNonSymbolChars)
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or not (ANextLine[i - 1] in CNonSymbolChars));
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end;
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// Checks for a symbol in the column of the current digit.
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if inNumber and not isPartNumber and
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(not (APreviousLine[i] in CNonSymbolChars)
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or not (ANextLine[i] in CNonSymbolChars)) then
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begin
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isPartNumber := True;
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end;
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// Checks if number ends.
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if inNumber and (not (ALine[i] in CDigitChars) or (i = ALine.Length)) then
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begin
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inNumber := False;
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// Checks for a symbol in the column after the last digit.
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if not (APreviousLine[i] in CNonSymbolChars)
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or not (ALine[i] in CNonSymbolChars)
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or not (ANextLine[i] in CNonSymbolChars) then
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begin
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isPartNumber := True;
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end;
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// Counts if it is a part number.
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if isPartNumber then
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begin
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numberLength := i - numberStart;
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if ALine[i] in CDigitChars then
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Inc(numberLength);
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partNumber := StrToInt(Copy(ALine, numberStart, numberLength));
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Inc(FPart1, partNumber);
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end;
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end;
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end;
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end;
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procedure TGearRatios.ProcessDataLine(const ALine: string);
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begin
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if not (FLine = '') then
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begin
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// Processes lines 2 to n - 1 in calls for lines 3 to n.
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ProcessDataLineTriplet(FPreviousLine, FLine, ALine);
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FPreviousLine := FLine;
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FLine := ALine;
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end
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else if not (FPreviousLine = '') then
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begin
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// Processes line 1 in call for line 2.
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FLine := ALine;
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// Duplicates the first line for the algorithm because it does not influence the result.
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ProcessDataLineTriplet(FPreviousLine, FPreviousLine, FLine);
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end
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else
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// Processes nothing in call for line 1.
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FPreviousLine := ALine;
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end;
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procedure TGearRatios.Finish;
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begin
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// Processes line n.
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// Duplicates the last line for the algorithm because it does not influence the result.
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if FLine = '' then
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FLine := FPreviousLine;
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ProcessDataLineTriplet(FPreviousLine, FLine, FLine);
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end;
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function TGearRatios.GetDataFileName: string;
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begin
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Result := 'gear_ratios.txt';
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end;
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function TGearRatios.GetPuzzleName: string;
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begin
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Result := 'Day 3: Gear Ratios';
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end;
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end.
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@ -0,0 +1,15 @@
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[WindowState]
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Left=664
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Top=189
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Width=575
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Height=663
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[Tests]
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All Tests.Checked=1
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All Tests.Expanded=1
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TGearRatiosTestCase.Checked=1
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TGearRatiosTestCase.Expanded=1
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TGearRatiosTestCase.TestPuzzleExample.Checked=1
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TGearRatiosTestCase.TestPuzzleExample.Expanded=0
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TGearRatiosTestCase.TestEndOfLineNumber.Checked=1
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TGearRatiosTestCase.TestEndOfLineNumber.Expanded=0
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Binary file not shown.
After Width: | Height: | Size: 130 KiB |
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@ -0,0 +1,84 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="12"/>
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<PathDelim Value="\"/>
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<General>
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<SessionStorage Value="InProjectDir"/>
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<Title Value="AdventOfCodeFPCUnit"/>
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<ResourceType Value="res"/>
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<UseXPManifest Value="True"/>
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<Icon Value="0"/>
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</General>
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<BuildModes>
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<Item Name="Default" Default="True"/>
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</BuildModes>
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<PublishOptions>
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<Version Value="2"/>
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<UseFileFilters Value="True"/>
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</PublishOptions>
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<RunParams>
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<FormatVersion Value="2"/>
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</RunParams>
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<RequiredPackages>
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<Item>
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<PackageName Value="fpcunittestrunner"/>
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</Item>
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<Item>
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<PackageName Value="LCL"/>
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</Item>
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<Item>
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<PackageName Value="FCL"/>
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</Item>
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</RequiredPackages>
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<Units>
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<Unit>
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<Filename Value="AdventOfCodeFPCUnit.lpr"/>
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<IsPartOfProject Value="True"/>
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</Unit>
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<Unit>
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<Filename Value="UGearRatiosTestCases.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit>
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<Unit>
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<Filename Value="..\USolver.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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<Version Value="11"/>
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<PathDelim Value="\"/>
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<Target>
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<Filename Value="AdventOfCodeFPCUnit"/>
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</Target>
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<SearchPaths>
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<IncludeFiles Value="$(ProjOutDir)"/>
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<OtherUnitFiles Value="..\solvers;.."/>
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<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
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</SearchPaths>
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<Linking>
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<Debugging>
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<DebugInfoType Value="dsDwarf3"/>
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</Debugging>
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<Options>
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<Win32>
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<GraphicApplication Value="True"/>
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</Win32>
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</Options>
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</Linking>
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</CompilerOptions>
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<Debugging>
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<Exceptions>
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<Item>
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<Name Value="EAbort"/>
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</Item>
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<Item>
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<Name Value="ECodetoolError"/>
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</Item>
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<Item>
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<Name Value="EFOpenError"/>
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</Item>
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</Exceptions>
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</Debugging>
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</CONFIG>
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@ -0,0 +1,15 @@
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program AdventOfCodeFPCUnit;
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{$mode objfpc}{$H+}
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uses
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Interfaces, Forms, GuiTestRunner, UGearRatiosTestCases, USolver;
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{$R *.res}
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begin
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Application.Initialize;
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Application.CreateForm(TGuiTestRunner, TestRunner);
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Application.Run;
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end.
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@ -0,0 +1,83 @@
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{
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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 UGearRatiosTestCases;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, fpcunit, testregistry, UGearRatios;
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type
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{ TGearRatiosTestCase }
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TGearRatiosTestCase = class(TTestCase)
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protected
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FSolver: TGearRatios;
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procedure Setup; override;
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procedure TearDown; override;
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published
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procedure TestPuzzleExample;
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procedure TestEndOfLineNumber;
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end;
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implementation
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{ TGearRatiosTestCase }
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procedure TGearRatiosTestCase.Setup;
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begin
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FSolver := TGearRatios.Create;
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end;
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procedure TGearRatiosTestCase.TearDown;
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begin
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FSolver.Free;
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end;
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procedure TGearRatiosTestCase.TestPuzzleExample;
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begin
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FSolver.Init;
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FSolver.ProcessDataLine('467..114..');
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FSolver.ProcessDataLine('...*......');
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FSolver.ProcessDataLine('..35..633.');
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FSolver.ProcessDataLine('......#...');
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FSolver.ProcessDataLine('617*......');
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FSolver.ProcessDataLine('.....+.58.');
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FSolver.ProcessDataLine('..592.....');
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FSolver.ProcessDataLine('......755.');
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FSolver.ProcessDataLine('...$.*....');
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FSolver.ProcessDataLine('.664.598..');
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FSolver.Finish;
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AssertEquals('Result of part 1 calculation incorrect.', 4361, FSolver.GetResultPart1);
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end;
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procedure TGearRatiosTestCase.TestEndOfLineNumber;
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begin
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FSolver.Init;
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FSolver.ProcessDataLine('...$541');
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FSolver.Finish;
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AssertEquals('Result of part 1 calculation incorrect.', 541, FSolver.GetResultPart1);
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end;
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initialization
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RegisterTest(TGearRatiosTestCase);
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end.
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