Added solution for "Day 6: Wait For It", part 1

This commit is contained in:
Stefan Müller 2023-12-06 12:26:19 +01:00 committed by Stefan Müller
parent 94bc00ab1c
commit 93f6ceb1db
6 changed files with 207 additions and 2 deletions

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@ -53,6 +53,10 @@
<Filename Value="solvers\UGiveSeedFertilizer.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
<Unit>
<Filename Value="solvers\UWaitForIt.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
</Units>
</ProjectOptions>
<CompilerOptions>

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@ -25,7 +25,7 @@ uses
{$ENDIF}
Classes, SysUtils, CustApp,
USolver,
UTrebuchet, UCubeConundrum, UGearRatios, UScratchcards, UGiveSeedFertilizer;
UTrebuchet, UCubeConundrum, UGearRatios, UScratchcards, UGiveSeedFertilizer, UWaitForIt;
type
@ -55,6 +55,7 @@ begin
engine.RunAndFree(TGearRatios.Create);
engine.RunAndFree(TScratchcards.Create);
engine.RunAndFree(TGiveSeedFertilizer.Create);
engine.RunAndFree(TWaitForIt.Create);
engine.Free;
end;

107
solvers/UWaitForIt.pas Normal file
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@ -0,0 +1,107 @@
{
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 UWaitForIt;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, fgl, Math, USolver;
type
{ TWaitForIt }
TWaitForIt = class(TSolver)
FTimes, FDistances: specialize TFPGList<Cardinal>;
public
constructor Create;
destructor Destroy; override;
procedure ProcessDataLine(const ALine: string); override;
procedure Finish; override;
function GetDataFileName: string; override;
function GetPuzzleName: string; override;
end;
implementation
{ TWaitForIt }
constructor TWaitForIt.Create;
begin
FTimes := specialize TFPGList<Cardinal>.Create;
FDistances := specialize TFPGList<Cardinal>.Create;
end;
destructor TWaitForIt.Destroy;
begin
FTimes.Free;
FDistances.Free;
inherited Destroy;
end;
procedure TWaitForIt.ProcessDataLine(const ALine: string);
var
split: TStringArray;
list: specialize TFPGList<Cardinal>;
i: Integer;
begin
split := ALine.Split([' ', ':']);
if split[0] = 'Time' then
list := FTimes
else if split[0] = 'Distance' then
list := FDistances
else
Exit;
for i := 1 to Length(split) - 1 do
if split[i] <> '' then
begin
list.Add(StrToDWord(split[i]));
end;
end;
procedure TWaitForIt.Finish;
var
i, x1, x2: Integer;
p, s: Double;
begin
FPart1 := 1;
for i := 0 to FTimes.Count - 1 do
begin
p := FTimes[i] / 2;
s := Sqrt(p * p - FDistances[i]);
x1 := Math.Floor(p - s + 1);
x2 := Math.Ceil(p + s - 1);
FPart1 := FPart1 * (x2 - x1 + 1);
end;
end;
function TWaitForIt.GetDataFileName: string;
begin
Result := 'wait_for_it.txt';
end;
function TWaitForIt.GetPuzzleName: string;
begin
Result := 'Day 6: Wait For It';
end;
end.

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@ -64,6 +64,10 @@
<Filename Value="UCubeConundrumTestCases.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
<Unit>
<Filename Value="UWaitForItTestCases.pas"/>
<IsPartOfProject Value="True"/>
</Unit>
</Units>
</ProjectOptions>
<CompilerOptions>

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@ -4,7 +4,7 @@ program AdventOfCodeFPCUnit;
uses
Interfaces, Forms, GuiTestRunner, USolver, UBaseTestCases, UTrebuchetTestCases, UCubeConundrumTestCases,
UGearRatiosTestCases, UScratchcardsTestCases, UGiveSeedFertilizerTestCases;
UGearRatiosTestCases, UScratchcardsTestCases, UGiveSeedFertilizerTestCases, UWaitForItTestCases;
{$R *.res}

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@ -0,0 +1,89 @@
{
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 UWaitForItTestCases;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, fpcunit, testregistry, USolver, UBaseTestCases, UWaitForIt;
type
{ TWaitForItFullDataTestCase }
TWaitForItFullDataTestCase = class(TEngineBaseTest)
protected
function CreateSolver: ISolver; override;
published
procedure TestPart1;
procedure TestPart2;
end;
{ TWaitForItExampleTestCase }
TWaitForItExampleTestCase = class(TExampleEngineBaseTest)
protected
function CreateSolver: ISolver; override;
published
procedure TestPart1;
procedure TestPart2;
end;
implementation
{ TWaitForItFullDataTestCase }
function TWaitForItFullDataTestCase.CreateSolver: ISolver;
begin
Result := TWaitForIt.Create;
end;
procedure TWaitForItFullDataTestCase.TestPart1;
begin
AssertEquals(4811940, FSolver.GetResultPart1);
end;
procedure TWaitForItFullDataTestCase.TestPart2;
begin
AssertEquals(-1, FSolver.GetResultPart2);
end;
{ TWaitForItExampleTestCase }
function TWaitForItExampleTestCase.CreateSolver: ISolver;
begin
Result := TWaitForIt.Create;
end;
procedure TWaitForItExampleTestCase.TestPart1;
begin
AssertEquals(288, FSolver.GetResultPart1);
end;
procedure TWaitForItExampleTestCase.TestPart2;
begin
AssertEquals(-1, FSolver.GetResultPart2);
end;
initialization
RegisterTest(TWaitForItFullDataTestCase);
RegisterTest(TWaitForItExampleTestCase);
end.