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Added solution for "Day 3: Gear Ratios", part 1, and added test project

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This commit is contained in:
Stefan Müller 2023-12-03 23:52:54 +01:00 committed by Stefan Müller
parent 83f6cdd3ad
commit 4027c3a712
9 changed files with 350 additions and 7 deletions
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4
AdventOfCode.lpi
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@ -41,6 +41,10 @@
<Filename Value="USolver.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
<Unit>
<Filename Value="solvers\UGearRatios.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
</Units>
</ProjectOptions>
<CompilerOptions>

3
AdventOfCode.lpr
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@ -25,7 +25,7 @@ uses
{$ENDIF}
Classes, SysUtils, CustApp,
USolver,
UTrebuchet, UCubeConundrum;
UTrebuchet, UCubeConundrum, UGearRatios;
type
@ -52,6 +52,7 @@ begin
TTrebuchet.Run;
TCubeConundrum.Run;
engine := TSolverEngine.Create;
engine.RunAndFree(TGearRatios.Create);
engine.Free;
end;

6
USolver.pas
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@ -53,7 +53,6 @@ type
procedure Init; virtual;
procedure ProcessDataLine(const ALine: string); virtual; abstract;
procedure Finish; virtual; abstract;
procedure Free; virtual;
function GetDataFileName: string; virtual; abstract;
function GetPuzzleName: string; virtual; abstract;
function GetResultPart1: Integer; virtual;
@ -80,11 +79,6 @@ begin
FPart2 := 0;
end;
procedure TSolver.Free;
begin
Free;
end;
function TSolver.GetResultPart1: Integer;
begin
Result := FPart1;

147
solvers/UGearRatios.pas Normal file
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@ -0,0 +1,147 @@
{
Solutions to the Advent Of Code.
Copyright (C) 2023 Stefan Müller
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
}
unit UGearRatios;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, USolver;
const
CDigitChars = ['0'..'9'];
CNonSymbolChars = ['0'..'9', '.'];
type
{ TGearRatios }
TGearRatios = class(TSolver)
private
FPreviousLine, FLine: string;
procedure ProcessDataLineTriplet(const APreviousLine, ALine, ANextLine: string);
public
procedure ProcessDataLine(const ALine: string); override;
procedure Finish; override;
function GetDataFileName: string; override;
function GetPuzzleName: string; override;
end;
implementation
{ TGearRatios }
procedure TGearRatios.ProcessDataLineTriplet(const APreviousLine, ALine, ANextLine: string);
var
i, numberStart, numberLength, partNumber: Integer;
inNumber, isPartNumber: Boolean;
begin
inNumber := False;
for i := 1 to ALine.Length do
begin
// Checks if number starts.
if not inNumber and (ALine[i] in CDigitChars) then
begin
inNumber := True;
numberStart := i;
// Checks for a symbol in the column before the first digit.
isPartNumber := (i > 1) and
(not (APreviousLine[i - 1] in CNonSymbolChars)
or not (ALine[i - 1] in CNonSymbolChars)
or not (ANextLine[i - 1] in CNonSymbolChars));
end;
// Checks for a symbol in the column of the current digit.
if inNumber and not isPartNumber and
(not (APreviousLine[i] in CNonSymbolChars)
or not (ANextLine[i] in CNonSymbolChars)) then
begin
isPartNumber := True;
end;
// Checks if number ends.
if inNumber and (not (ALine[i] in CDigitChars) or (i = ALine.Length)) then
begin
inNumber := False;
// Checks for a symbol in the column after the last digit.
if not (APreviousLine[i] in CNonSymbolChars)
or not (ALine[i] in CNonSymbolChars)
or not (ANextLine[i] in CNonSymbolChars) then
begin
isPartNumber := True;
end;
// Counts if it is a part number.
if isPartNumber then
begin
numberLength := i - numberStart;
if ALine[i] in CDigitChars then
Inc(numberLength);
partNumber := StrToInt(Copy(ALine, numberStart, numberLength));
Inc(FPart1, partNumber);
end;
end;
end;
end;
procedure TGearRatios.ProcessDataLine(const ALine: string);
begin
if not (FLine = '') then
begin
// Processes lines 2 to n - 1 in calls for lines 3 to n.
ProcessDataLineTriplet(FPreviousLine, FLine, ALine);
FPreviousLine := FLine;
FLine := ALine;
end
else if not (FPreviousLine = '') then
begin
// Processes line 1 in call for line 2.
FLine := ALine;
// Duplicates the first line for the algorithm because it does not influence the result.
ProcessDataLineTriplet(FPreviousLine, FPreviousLine, FLine);
end
else
// Processes nothing in call for line 1.
FPreviousLine := ALine;
end;
procedure TGearRatios.Finish;
begin
// Processes line n.
// Duplicates the last line for the algorithm because it does not influence the result.
if FLine = '' then
FLine := FPreviousLine;
ProcessDataLineTriplet(FPreviousLine, FLine, FLine);
end;
function TGearRatios.GetDataFileName: string;
begin
Result := 'gear_ratios.txt';
end;
function TGearRatios.GetPuzzleName: string;
begin
Result := 'Day 3: Gear Ratios';
end;
end.

15
tests/AdventOfCodeFPCUnit.fpcunit.ini Normal file
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@ -0,0 +1,15 @@
[WindowState]
Left=664
Top=189
Width=575
Height=663
[Tests]
All Tests.Checked=1
All Tests.Expanded=1
TGearRatiosTestCase.Checked=1
TGearRatiosTestCase.Expanded=1
TGearRatiosTestCase.TestPuzzleExample.Checked=1
TGearRatiosTestCase.TestPuzzleExample.Expanded=0
TGearRatiosTestCase.TestEndOfLineNumber.Checked=1
TGearRatiosTestCase.TestEndOfLineNumber.Expanded=0

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84
tests/AdventOfCodeFPCUnit.lpi Normal file
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@ -0,0 +1,84 @@
<?xml version="1.0" encoding="UTF-8"?>
<CONFIG>
<ProjectOptions>
<Version Value="12"/>
<PathDelim Value="\"/>
<General>
<SessionStorage Value="InProjectDir"/>
<Title Value="AdventOfCodeFPCUnit"/>
<ResourceType Value="res"/>
<UseXPManifest Value="True"/>
<Icon Value="0"/>
</General>
<BuildModes>
<Item Name="Default" Default="True"/>
</BuildModes>
<PublishOptions>
<Version Value="2"/>
<UseFileFilters Value="True"/>
</PublishOptions>
<RunParams>
<FormatVersion Value="2"/>
</RunParams>
<RequiredPackages>
<Item>
<PackageName Value="fpcunittestrunner"/>
</Item>
<Item>
<PackageName Value="LCL"/>
</Item>
<Item>
<PackageName Value="FCL"/>
</Item>
</RequiredPackages>
<Units>
<Unit>
<Filename Value="AdventOfCodeFPCUnit.lpr"/>
<IsPartOfProject Value="True"/>
</Unit>
<Unit>
<Filename Value="UGearRatiosTestCases.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
<Unit>
<Filename Value="..\USolver.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
</Units>
</ProjectOptions>
<CompilerOptions>
<Version Value="11"/>
<PathDelim Value="\"/>
<Target>
<Filename Value="AdventOfCodeFPCUnit"/>
</Target>
<SearchPaths>
<IncludeFiles Value="$(ProjOutDir)"/>
<OtherUnitFiles Value="..\solvers;.."/>
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
</SearchPaths>
<Linking>
<Debugging>
<DebugInfoType Value="dsDwarf3"/>
</Debugging>
<Options>
<Win32>
<GraphicApplication Value="True"/>
</Win32>
</Options>
</Linking>
</CompilerOptions>
<Debugging>
<Exceptions>
<Item>
<Name Value="EAbort"/>
</Item>
<Item>
<Name Value="ECodetoolError"/>
</Item>
<Item>
<Name Value="EFOpenError"/>
</Item>
</Exceptions>
</Debugging>
</CONFIG>

15
tests/AdventOfCodeFPCUnit.lpr Normal file
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@ -0,0 +1,15 @@
program AdventOfCodeFPCUnit;
{$mode objfpc}{$H+}
uses
Interfaces, Forms, GuiTestRunner, UGearRatiosTestCases, USolver;
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TGuiTestRunner, TestRunner);
Application.Run;
end.

83
tests/UGearRatiosTestCases.pas Normal file
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@ -0,0 +1,83 @@
{
Solutions to the Advent Of Code.
Copyright (C) 2023 Stefan Müller
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
}
unit UGearRatiosTestCases;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, fpcunit, testregistry, UGearRatios;
type
{ TGearRatiosTestCase }
TGearRatiosTestCase = class(TTestCase)
protected
FSolver: TGearRatios;
procedure Setup; override;
procedure TearDown; override;
published
procedure TestPuzzleExample;
procedure TestEndOfLineNumber;
end;
implementation
{ TGearRatiosTestCase }
procedure TGearRatiosTestCase.Setup;
begin
FSolver := TGearRatios.Create;
end;
procedure TGearRatiosTestCase.TearDown;
begin
FSolver.Free;
end;
procedure TGearRatiosTestCase.TestPuzzleExample;
begin
FSolver.Init;
FSolver.ProcessDataLine('467..114..');
FSolver.ProcessDataLine('...*......');
FSolver.ProcessDataLine('..35..633.');
FSolver.ProcessDataLine('......#...');
FSolver.ProcessDataLine('617*......');
FSolver.ProcessDataLine('.....+.58.');
FSolver.ProcessDataLine('..592.....');
FSolver.ProcessDataLine('......755.');
FSolver.ProcessDataLine('...$.*....');
FSolver.ProcessDataLine('.664.598..');
FSolver.Finish;
AssertEquals('Result of part 1 calculation incorrect.', 4361, FSolver.GetResultPart1);
end;
procedure TGearRatiosTestCase.TestEndOfLineNumber;
begin
FSolver.Init;
FSolver.ProcessDataLine('...$541');
FSolver.Finish;
AssertEquals('Result of part 1 calculation incorrect.', 541, FSolver.GetResultPart1);
end;
initialization
RegisterTest(TGearRatiosTestCase);
end.