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AdventOfCode2024
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Add solutions for "Day 1: Historian Hysteria"

This commit is contained in:
Stefan Müller 2024-12-01 16:32:21 +01:00
parent 5f08565799
commit e30905c3ab
8 changed files with 94 additions and 60 deletions
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4
AdventOfCode2024/AdventOfCode2024.vcxproj
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@ -129,13 +129,13 @@
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="AdventOfCode2024.cpp" />
<ClCompile Include="Demo.cpp" />
<ClCompile Include="HistorianHysteria.cpp" />
<ClCompile Include="Program.cpp" />
<ClCompile Include="Solver.cpp" />
<ClCompile Include="SolverEngine.cpp" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="Demo.h" />
<ClInclude Include="HistorianHysteria.h" />
<ClInclude Include="Program.h" />
<ClInclude Include="Solver.h" />
<ClInclude Include="SolverEngine.h" />

10
AdventOfCode2024/AdventOfCode2024.vcxproj.filters
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@ -18,9 +18,6 @@
<ClCompile Include="AdventOfCode2024.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Demo.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Solver.cpp">
<Filter>Source Files</Filter>
</ClCompile>
@ -30,6 +27,9 @@
<ClCompile Include="Program.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="HistorianHysteria.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="SolverEngine.h">
@ -38,10 +38,10 @@
<ClInclude Include="Solver.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Demo.h">
<ClInclude Include="Program.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Program.h">
<ClInclude Include="HistorianHysteria.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>

43
AdventOfCode2024/Demo.cpp
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@ -1,43 +0,0 @@
// Solutions to the Advent Of Code 2024.
// Copyright (C) 2024 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/>.
#include "Demo.h"
std::string Demo::getPuzzleName() const
{
return "Demo";
}
std::string Demo::getInputFileName() const
{
return "demo.txt";
}
void Demo::processDataLine(const std::string& line)
{
part1 += std::stoi(line);
if (part2 == 0)
{
part2 = std::stoi(line);
}
else
{
part2 *= std::stoi(line);
}
}
void Demo::finish()
{
}

70
AdventOfCode2024/HistorianHysteria.cpp Normal file
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@ -0,0 +1,70 @@
// Solutions to the Advent Of Code 2024.
// Copyright (C) 2024 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/>.
#include <iostream>
#include "HistorianHysteria.h"
std::string HistorianHysteria::getPuzzleName() const
{
return "Day 1: Historian Hysteria";
}
std::string HistorianHysteria::getInputFileName() const
{
return "historian_hysteria.txt";
}
void HistorianHysteria::processDataLine(const std::string& line)
{
auto pos = line.find(" ");
left.insert(std::stoi(line.substr(0, pos)));
right.insert(std::stoi(line.substr(pos + 3)));
}
void HistorianHysteria::finish()
{
int prev{ 0 };
auto nSame{ 0 };
auto leftIterator = left.begin();
auto rightIterator = right.begin();
auto rightSameIterator = right.begin();
while (leftIterator != left.end())
{
part1 += abs(*leftIterator - *rightIterator);
if (prev != *leftIterator)
{
nSame = 0;
// Skips over numbers in the right list that are smaller than the current left number.
while (rightSameIterator != right.end() && *rightSameIterator < *leftIterator)
{
rightSameIterator++;
}
// Counts the occurrences of the current left number in the right list.
while (rightSameIterator != right.end() && *rightSameIterator == *leftIterator)
{
rightSameIterator++;
nSame++;
}
prev = *leftIterator;
}
part2 += *leftIterator * nSame;
leftIterator++;
rightIterator++;
}
}

7
AdventOfCode2024/Demo.h → AdventOfCode2024/HistorianHysteria.h
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@ -15,9 +15,11 @@
#pragma once
#include <set>
#include "Solver.h"
class Demo :
class HistorianHysteria :
public Solver
{
public:
@ -25,4 +27,7 @@ class Demo :
virtual std::string getInputFileName() const override;
virtual void processDataLine(const std::string& line) override;
virtual void finish() override;
private:
std::multiset<int> left;
std::multiset<int> right;
};

5
AdventOfCode2024/Program.cpp
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@ -16,10 +16,11 @@
#include <iostream>
#include <memory>
#include "Demo.h"
#include "Program.h"
#include "SolverEngine.h"
#include "HistorianHysteria.h"
void Program::run()
{
std::cout << "### Advent of Code 2024 ###\n";
@ -29,7 +30,7 @@ void Program::run()
void Program::runSolvers()
{
SolverEngine solverEngine{ getInputPaths() };
solverEngine.run(*std::make_unique<Demo>());
solverEngine.run(*std::make_unique<HistorianHysteria>());
}
std::vector<std::string> Program::getInputPaths() const

13
AdventOfCode2024/UnitTests/UnitTests.cpp
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@ -18,35 +18,36 @@
#include "Part1TestContext.h"
#include "Part2TestContext.h"
#include "../Demo.h"
#include "../Solver.h"
#include "../SolverEngine.h"
#include "../HistorianHysteria.h"
using namespace Microsoft::VisualStudio::CppUnitTestFramework;
namespace UnitTests
{
TEST_CLASS(DemoTests)
TEST_CLASS(HistorianHysteriaTests)
{
public:
TEST_METHOD(FullData1)
{
runTest(*std::make_unique<Demo>(), 66, part1TestContext_);
runTest(*std::make_unique<HistorianHysteria>(), 2176849, part1TestContext_);
}
TEST_METHOD(FullData2)
{
runTest(*std::make_unique<Demo>(), 39916800, part2TestContext_);
runTest(*std::make_unique<HistorianHysteria>(), 23384288, part2TestContext_);
}
TEST_METHOD(ExampleData1)
{
runTest(*std::make_unique<Demo>(), 10, part1ExampleTestContext_);
runTest(*std::make_unique<HistorianHysteria>(), 11, part1ExampleTestContext_);
}
TEST_METHOD(ExampleData2)
{
runTest(*std::make_unique<Demo>(), 24, part2ExampleTestContext_);
runTest(*std::make_unique<HistorianHysteria>(), 31, part2ExampleTestContext_);
}
private:

2
AdventOfCode2024/UnitTests/UnitTests.vcxproj
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@ -102,7 +102,7 @@
<Link>
<SubSystem>Windows</SubSystem>
<AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;..\$(Platform)\$(Configuration);D:\Projects\VS\AdventOfCode2024Full\code\AdventOfCode2024\x64\Debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>Demo.obj;Solver.obj;SolverEngine.obj;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>Solver.obj;SolverEngine.obj;HistorianHysteria.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">