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Apply nullability

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This commit is contained in:
Valeriano A.R.
2024-12-02 01:37:52 +01:00
parent dafd2526d1
commit e440e7aae1
27 changed files with 125 additions and 101 deletions
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2
AdventOfCode.Common/AdventOfCode.Common.csproj
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@@ -3,8 +3,8 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>AdventOfCode.Common</RootNamespace>
<Nullable>enable</Nullable> <Nullable>enable</Nullable>
<RootNamespace>AdventOfCode.Common</RootNamespace>
</PropertyGroup> </PropertyGroup>
</Project> </Project>

2
AdventOfCode2017.Tests/AdventOfCode2017.Tests.csproj
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@@ -3,9 +3,11 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2017.Tests</RootNamespace> <RootNamespace>AdventOfCode2017.Tests</RootNamespace>
<IsPackable>false</IsPackable> <IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

1
AdventOfCode2017/AdventOfCode2017.csproj
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@@ -4,6 +4,7 @@
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2017</RootNamespace> <RootNamespace>AdventOfCode2017</RootNamespace>
</PropertyGroup> </PropertyGroup>

4
AdventOfCode2017/Day03.cs
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@@ -30,11 +30,11 @@ public class Day03 : IDay
{ {
public string ResolvePart1(string[] inputs) public string ResolvePart1(string[] inputs)
{ {
return null; return string.Empty;
} }
public string ResolvePart2(string[] inputs) public string ResolvePart2(string[] inputs)
{ {
return null; return string.Empty;
} }
} }

2
AdventOfCode2018.Tests/AdventOfCode2018.Tests.csproj
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@@ -3,9 +3,11 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2018.Tests</RootNamespace> <RootNamespace>AdventOfCode2018.Tests</RootNamespace>
<IsPackable>false</IsPackable> <IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

32
AdventOfCode2018.Tests/Day06_Tests.cs
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@@ -7,28 +7,28 @@ public class Day06_Tests
[Fact] [Fact]
public void ChronoPoint_FromString__Test1() public void ChronoPoint_FromString__Test1()
{ {
Day06.ChronoPoint point = Day06.ChronoPoint.FromString("1, 1"); Day06.ChronoPoint? point = Day06.ChronoPoint.FromString("1, 1");
Assert.Equal(1, point.X); Assert.Equal(1, point?.X);
Assert.Equal(1, point.Y); Assert.Equal(1, point?.Y);
} }
[Fact] [Fact]
public void ChronoPoint_FromString__Test2() public void ChronoPoint_FromString__Test2()
{ {
Day06.ChronoPoint point = Day06.ChronoPoint.FromString("1, 6"); Day06.ChronoPoint? point = Day06.ChronoPoint.FromString("1, 6");
Assert.Equal(1, point.X); Assert.Equal(1, point?.X);
Assert.Equal(6, point.Y); Assert.Equal(6, point?.Y);
} }
[Fact] [Fact]
public void ChronoPoint_FromString__Test3() public void ChronoPoint_FromString__Test3()
{ {
Day06.ChronoPoint point = Day06.ChronoPoint.FromString("8, 9"); Day06.ChronoPoint? point = Day06.ChronoPoint.FromString("8, 9");
Assert.Equal(8, point.X); Assert.Equal(8, point?.X);
Assert.Equal(9, point.Y); Assert.Equal(9, point?.Y);
} }
#endregion ChronoPoint_FromString #endregion ChronoPoint_FromString
@@ -38,8 +38,11 @@ public class Day06_Tests
[Fact] [Fact]
public void ChronoPoint_ManhattanDistance__Test1() public void ChronoPoint_ManhattanDistance__Test1()
{ {
Day06.ChronoPoint p0 = Day06.ChronoPoint.FromString("8, 9"); Day06.ChronoPoint? p0 = Day06.ChronoPoint.FromString("8, 9");
Day06.ChronoPoint p1 = Day06.ChronoPoint.FromString("1, 6"); Day06.ChronoPoint? p1 = Day06.ChronoPoint.FromString("1, 6");
Assert.NotNull(p0);
Assert.NotNull(p1);
int distance = Day06.ChronoPoint.ManhattanDistance(p0, p1); int distance = Day06.ChronoPoint.ManhattanDistance(p0, p1);
@@ -49,8 +52,11 @@ public class Day06_Tests
[Fact] [Fact]
public void ChronoPoint_ManhattanDistance__Test2() public void ChronoPoint_ManhattanDistance__Test2()
{ {
Day06.ChronoPoint p0 = Day06.ChronoPoint.FromString("1, 1"); Day06.ChronoPoint? p0 = Day06.ChronoPoint.FromString("1, 1");
Day06.ChronoPoint p1 = Day06.ChronoPoint.FromString("1, 6"); Day06.ChronoPoint? p1 = Day06.ChronoPoint.FromString("1, 6");
Assert.NotNull(p0);
Assert.NotNull(p1);
int distance = Day06.ChronoPoint.ManhattanDistance(p0, p1); int distance = Day06.ChronoPoint.ManhattanDistance(p0, p1);

1
AdventOfCode2018/AdventOfCode2018.csproj
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@@ -4,6 +4,7 @@
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2018</RootNamespace> <RootNamespace>AdventOfCode2018</RootNamespace>
</PropertyGroup> </PropertyGroup>

4
AdventOfCode2018/Day01.cs
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@@ -82,7 +82,7 @@ public class Day01 : IDay
public string ResolvePart2(string[] inputs) public string ResolvePart2(string[] inputs)
{ {
int accumulator = 0; int accumulator = 0;
List<int> accumulatorHistory = new(); List<int> accumulatorHistory = [];
int? repeatedAccumulator = null; int? repeatedAccumulator = null;
while (repeatedAccumulator == null) while (repeatedAccumulator == null)
{ {
@@ -108,6 +108,6 @@ public class Day01 : IDay
} }
} }
} }
return repeatedAccumulator.ToString(); return repeatedAccumulator.ToString() ?? string.Empty;
} }
} }

4
AdventOfCode2018/Day03.cs
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@@ -94,7 +94,7 @@ public class Day03 : IDay
{ {
List<Claim> claims = inputs.Select(Claim.FromString).ToList(); List<Claim> claims = inputs.Select(Claim.FromString).ToList();
Claim unOverlappingClaim = null; Claim? unOverlappingClaim = null;
for (int i = 0; i < claims.Count; i++) for (int i = 0; i < claims.Count; i++)
{ {
bool overlaps = false; bool overlaps = false;
@@ -113,7 +113,7 @@ public class Day03 : IDay
break; break;
} }
} }
return unOverlappingClaim.ID.ToString(); return unOverlappingClaim?.ID.ToString() ?? string.Empty;
} }

11
AdventOfCode2018/Day04.cs
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@@ -71,7 +71,7 @@ public class Day04 : IDay
Dictionary<int, GuardSleepHistogram> dictFullHistogram = BuildFullHistogram(guardEvents); Dictionary<int, GuardSleepHistogram> dictFullHistogram = BuildFullHistogram(guardEvents);
// Find sleepier guard // Find sleepier guard
GuardSleepHistogram highestSleeperHistogram = null; GuardSleepHistogram? highestSleeperHistogram = null;
long highestTotalSleep = long.MinValue; long highestTotalSleep = long.MinValue;
foreach (GuardSleepHistogram guardHistogram in dictFullHistogram.Values) foreach (GuardSleepHistogram guardHistogram in dictFullHistogram.Values)
{ {
@@ -83,6 +83,7 @@ public class Day04 : IDay
highestTotalSleep = totalSleep; highestTotalSleep = totalSleep;
} }
} }
if (highestSleeperHistogram == null) { return string.Empty; }
// Find sleepier minute // Find sleepier minute
int maxSleepMinute = int.MinValue; int maxSleepMinute = int.MinValue;
@@ -156,14 +157,12 @@ public class Day04 : IDay
foreach (GuardSleepHistogram dayGuardHistogram in dictDayHistogram.Values) foreach (GuardSleepHistogram dayGuardHistogram in dictDayHistogram.Values)
{ {
if (dictFullHistogram.TryGetValue(dayGuardHistogram.ID, out GuardSleepHistogram guardHistogram)) if (dictFullHistogram.TryGetValue(dayGuardHistogram.ID, out GuardSleepHistogram? guardHistogram))
{ {
guardHistogram.AddHistogram(dayGuardHistogram); guardHistogram.AddHistogram(dayGuardHistogram);
continue;
} }
else dictFullHistogram.Add(dayGuardHistogram.ID, dayGuardHistogram);
{
dictFullHistogram.Add(dayGuardHistogram.ID, dayGuardHistogram);
}
} }
} }

3
AdventOfCode2018/Day06.cs
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@@ -97,6 +97,7 @@ public class Day06 : IDay
return inputs return inputs
.Where(input => string.IsNullOrEmpty(input) == false) .Where(input => string.IsNullOrEmpty(input) == false)
.Select(ChronoPoint.FromString) .Select(ChronoPoint.FromString)
.OfType<ChronoPoint>()
.ToList(); .ToList();
} }
@@ -197,7 +198,7 @@ public class Day06 : IDay
public int X { get; set; } public int X { get; set; }
public int Y { get; set; } public int Y { get; set; }
public static ChronoPoint FromString(string strPoint) public static ChronoPoint? FromString(string strPoint)
{ {
if (string.IsNullOrEmpty(strPoint)) { return null; } if (string.IsNullOrEmpty(strPoint)) { return null; }
string[] parts = strPoint.Split([", "], StringSplitOptions.RemoveEmptyEntries); string[] parts = strPoint.Split([", "], StringSplitOptions.RemoveEmptyEntries);

21
AdventOfCode2018/Day07.cs
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@@ -128,9 +128,9 @@ public class Day07 : IDay
return totalElapsedTime.ToString(); return totalElapsedTime.ToString();
} }
public class InstructionNode public class InstructionNode(string nodeID)
{ {
public string NodeID { get; init; } public string NodeID { get; init; } = nodeID;
public List<string> PreviousNodeIDs { get; } = []; public List<string> PreviousNodeIDs { get; } = [];
@@ -154,16 +154,12 @@ public class Day07 : IDay
private InstructionNode GetNode(string nodeID) private InstructionNode GetNode(string nodeID)
{ {
InstructionNode node; if (Nodes.TryGetValue(nodeID, out InstructionNode? nodeAux))
if (Nodes.TryGetValue(nodeID, out InstructionNode nodeAux))
{ {
node = nodeAux; return nodeAux;
}
else
{
node = new InstructionNode { NodeID = nodeID, };
Nodes.Add(nodeID, node);
} }
InstructionNode node = new(nodeID);
Nodes.Add(nodeID, node);
return node; return node;
} }
@@ -194,7 +190,8 @@ public class Day07 : IDay
.ToList(); .ToList();
if (unusedNodes.Count > 0) if (unusedNodes.Count > 0)
{ {
InstructionNode node = unusedNodes.FirstOrDefault(); InstructionNode? node = unusedNodes.FirstOrDefault();
if (node == null) { continue; }
finalNodes.Add(node); finalNodes.Add(node);
node.Used = true; node.Used = true;
} }
@@ -204,7 +201,7 @@ public class Day07 : IDay
private class SimulatedWorker private class SimulatedWorker
{ {
public InstructionNode CurrentInstruction { get; private set; } public InstructionNode? CurrentInstruction { get; private set; }
private int ElapsedTime { get; set; } private int ElapsedTime { get; set; }
public void SetInstruction(InstructionNode instruction) public void SetInstruction(InstructionNode instruction)

48
AdventOfCode2018/Day09.cs
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@@ -87,16 +87,16 @@ public class Day09 : IDay
public class Marble public class Marble
{ {
public long Value { get; init; } public long Value { get; init; }
public Marble Previous { get; set; } public Marble? Previous { get; set; }
public Marble Next { get; set; } public Marble? Next { get; set; }
} }
public class MarbleGame public class MarbleGame
{ {
private Dictionary<long, long> Scores { get; } = new(); private Dictionary<long, long> Scores { get; } = new();
private Marble _firstMarble; private Marble? _firstMarble;
private Marble _currentMarble; private Marble? _currentMarble;
private long _currentPlayer; private long _currentPlayer;
private const long PointValueMultiple = 23; private const long PointValueMultiple = 23;
@@ -119,20 +119,34 @@ public class Day09 : IDay
Marble newMarble = new() { Value = i + 1 }; Marble newMarble = new() { Value = i + 1 };
if ((newMarble.Value % PointValueMultiple) > 0) if ((newMarble.Value % PointValueMultiple) > 0)
{ {
Marble previousMarble = _currentMarble.Next; Marble? previousMarble = _currentMarble?.Next;
Marble nextMarble = previousMarble.Next; Marble? nextMarble = previousMarble?.Next;
newMarble.Previous = previousMarble; newMarble.Previous = previousMarble;
newMarble.Next = nextMarble; newMarble.Next = nextMarble;
previousMarble.Next = newMarble; if(previousMarble != null)
nextMarble.Previous = newMarble; {
previousMarble.Next = newMarble;
}
if(nextMarble != null)
{
nextMarble.Previous = newMarble;
}
_currentMarble = newMarble; _currentMarble = newMarble;
} }
else else
{ {
Marble marbleToRemove = _currentMarble.Previous.Previous.Previous.Previous.Previous.Previous.Previous; Marble? marbleToRemove = _currentMarble?.Previous?.Previous?.Previous?.Previous?.Previous?.Previous?.Previous;
_currentMarble = marbleToRemove.Next; _currentMarble = marbleToRemove?.Next;
marbleToRemove.Previous.Next = marbleToRemove.Next; if (marbleToRemove == null) { continue; }
marbleToRemove.Next.Previous = marbleToRemove.Previous;
if(marbleToRemove.Previous != null)
{
marbleToRemove.Previous.Next = marbleToRemove.Next;
}
if (marbleToRemove.Next != null)
{
marbleToRemove.Next.Previous = marbleToRemove.Previous;
}
long currentPlayerScore = Scores[_currentPlayer] + (newMarble.Value + marbleToRemove.Value); long currentPlayerScore = Scores[_currentPlayer] + (newMarble.Value + marbleToRemove.Value);
Scores[_currentPlayer] = currentPlayerScore; Scores[_currentPlayer] = currentPlayerScore;
@@ -144,14 +158,14 @@ public class Day09 : IDay
private void PrintStatus() private void PrintStatus()
{ {
Console.Write("[{0}] ", _currentPlayer); Console.Write("[{0}] ", _currentPlayer);
Marble marble = _firstMarble; Marble? marble = _firstMarble;
do do
{ {
Console.Write(_currentMarble.Value == marble.Value Console.Write(_currentMarble?.Value == marble?.Value
? "({0}) " ? "({0}) "
: "{0} ", marble.Value); : "{0} ", marble?.Value);
marble = marble.Next; marble = marble?.Next;
} while (marble.Value != 0); } while (marble != null && marble.Value != 0);
Console.WriteLine(); Console.WriteLine();
} }

4
AdventOfCode2018/Day12.cs
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@@ -111,8 +111,8 @@ public class Day12 : IDay
private readonly List<bool> _initialState = []; private readonly List<bool> _initialState = [];
private readonly List<PlantRule> _rules = []; private readonly List<PlantRule> _rules = [];
private long _offsetField; private long _offsetField;
private bool[] _field; private bool[] _field = [];
private bool[] _workField; private bool[] _workField = [];
private void Initialize(string[] inputs) private void Initialize(string[] inputs)
{ {

16
AdventOfCode2018/Day13.cs
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@@ -217,7 +217,7 @@ public class Day13 : IDay
public string ResolvePart1(string[] inputs) public string ResolvePart1(string[] inputs)
{ {
Initialize(inputs); Initialize(inputs);
Train collidingTrain; Train? collidingTrain;
do do
{ {
if (ShowProgress) { ShowGrid(); } if (ShowProgress) { ShowGrid(); }
@@ -229,7 +229,7 @@ public class Day13 : IDay
public string ResolvePart2(string[] inputs) public string ResolvePart2(string[] inputs)
{ {
Initialize(inputs); Initialize(inputs);
Train lastCart; Train? lastCart;
do do
{ {
if (ShowProgress) { ShowGrid(); } if (ShowProgress) { ShowGrid(); }
@@ -371,7 +371,7 @@ public class Day13 : IDay
private int _width; private int _width;
private int _height; private int _height;
private char[,] _grid; private char[,] _grid = new char[0, 0];
private readonly List<Train> _trains = []; private readonly List<Train> _trains = [];
private void Initialize(string[] inputs) private void Initialize(string[] inputs)
@@ -430,9 +430,9 @@ public class Day13 : IDay
} }
} }
private Train SimulateForFirstCollision() private Train? SimulateForFirstCollision()
{ {
Train collidingTrain = null; Train? collidingTrain = null;
IEnumerable<Train> orderedTrains = _trains.OrderBy(t => t.X + (t.Y * _width)); IEnumerable<Train> orderedTrains = _trains.OrderBy(t => t.X + (t.Y * _width));
foreach (Train t in orderedTrains) foreach (Train t in orderedTrains)
{ {
@@ -443,13 +443,13 @@ public class Day13 : IDay
return collidingTrain; return collidingTrain;
} }
private Train SimulateForLastCart() private Train? SimulateForLastCart()
{ {
List<Train> orderedTrains = _trains.OrderBy(t => t.X + (t.Y * _width)).ToList(); List<Train> orderedTrains = _trains.OrderBy(t => t.X + (t.Y * _width)).ToList();
foreach (Train t in orderedTrains) foreach (Train t in orderedTrains)
{ {
t.Simulate(_grid); t.Simulate(_grid);
Train collidingTrain = _trains.FirstOrDefault(x => x.X == t.X && x.Y == t.Y && t != x); Train? collidingTrain = _trains.FirstOrDefault(x => x.X == t.X && x.Y == t.Y && t != x);
if (collidingTrain != null) if (collidingTrain != null)
{ {
_trains.Remove(t); _trains.Remove(t);
@@ -470,7 +470,7 @@ public class Day13 : IDay
{ {
for (int i = 0; i < _width; i++) for (int i = 0; i < _width; i++)
{ {
Train t = _trains.FirstOrDefault(x => x.X == i && x.Y == j); Train? t = _trains.FirstOrDefault(x => x.X == i && x.Y == j);
if (t != null) if (t != null)
{ {
if (t.Direction == TrainDirection.North) if (t.Direction == TrainDirection.North)

2
AdventOfCode2018/Day14.cs
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@@ -62,7 +62,7 @@ public class Day14 : IDay
{ {
private long _numRecipes; private long _numRecipes;
private long _numRecipesAllocated; private long _numRecipesAllocated;
private byte[] _recipes; private byte[] _recipes = [];
private long _idxA; private long _idxA;
private long _idxB; private long _idxB;
private long _searchSkip; private long _searchSkip;

22
AdventOfCode2018/Day15.cs
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@@ -444,9 +444,9 @@ public class Day15 : IDay
private int _width; private int _width;
private int _height; private int _height;
private char[,] _map; private char[,] _map = new char[0, 0];
private List<Entity> _entities; private readonly List<Entity> _entities = [];
private BreadthFirstSearchGrid _search; private BreadthFirstSearchGrid? _search;
private int _rounds; private int _rounds;
private void Init(string[] inputs) private void Init(string[] inputs)
@@ -454,7 +454,7 @@ public class Day15 : IDay
_height = inputs.Length; _height = inputs.Length;
_width = inputs.Max(input => input.Length); _width = inputs.Max(input => input.Length);
_map = new char[_width, _height]; _map = new char[_width, _height];
_entities = new List<Entity>(); _entities.Clear();
for (int j = 0; j < _height; j++) for (int j = 0; j < _height; j++)
{ {
for (int i = 0; i < _width; i++) for (int i = 0; i < _width; i++)
@@ -509,7 +509,7 @@ public class Day15 : IDay
.ThenBy(e => e.X); .ThenBy(e => e.X);
} }
private Entity GetBestInRangeTarget(Entity entity, IEnumerable<Entity> targets) private Entity? GetBestInRangeTarget(Entity entity, IEnumerable<Entity> targets)
{ {
return targets return targets
.Where(entity.InRangeOf) .Where(entity.InRangeOf)
@@ -521,6 +521,7 @@ public class Day15 : IDay
private void AddTarget(List<Target> targets, int targetX, int targetY, int priority) private void AddTarget(List<Target> targets, int targetX, int targetY, int priority)
{ {
if (_search == null) { return;}
if (targetX >= 0 && targetX < _width && targetY >= 0 && targetY < _height && _map[targetX, targetY] == '.') if (targetX >= 0 && targetX < _width && targetY >= 0 && targetY < _height && _map[targetX, targetY] == '.')
{ {
int distance = _search.QueryDistance(targetX, targetY); int distance = _search.QueryDistance(targetX, targetY);
@@ -538,6 +539,7 @@ public class Day15 : IDay
private void RunBattle() private void RunBattle()
{ {
if (_search == null) { return;}
_rounds = 0; _rounds = 0;
bool running = true; bool running = true;
do do
@@ -554,7 +556,7 @@ public class Day15 : IDay
} }
// Attack // Attack
Entity targetInRange = GetBestInRangeTarget(entity, entitiesTargets); Entity? targetInRange = GetBestInRangeTarget(entity, entitiesTargets);
if (targetInRange != null) if (targetInRange != null)
{ {
entity.Attack(_map, targetInRange); entity.Attack(_map, targetInRange);
@@ -572,7 +574,7 @@ public class Day15 : IDay
AddTarget(targets, entityTarget.X + 1, entityTarget.Y, priority++); AddTarget(targets, entityTarget.X + 1, entityTarget.Y, priority++);
AddTarget(targets, entityTarget.X, entityTarget.Y + 1, priority++); AddTarget(targets, entityTarget.X, entityTarget.Y + 1, priority++);
} }
Target bestTarget = targets.OrderBy(t => t.Distance).ThenBy(t => t.Priority).FirstOrDefault(); Target? bestTarget = targets.OrderBy(t => t.Distance).ThenBy(t => t.Priority).FirstOrDefault();
if (bestTarget != null) if (bestTarget != null)
{ {
_search.SearchCharGrid(_map, '.', bestTarget.X, bestTarget.Y); _search.SearchCharGrid(_map, '.', bestTarget.X, bestTarget.Y);
@@ -594,7 +596,7 @@ public class Day15 : IDay
dirTarget.Distance = _search.QueryDistance(dirTarget.X, dirTarget.Y); dirTarget.Distance = _search.QueryDistance(dirTarget.X, dirTarget.Y);
if (dirTarget.Distance >= 0) targets.Add(dirTarget); if (dirTarget.Distance >= 0) targets.Add(dirTarget);
Target finalTarget = targets Target? finalTarget = targets
.OrderBy(t => t.Distance) .OrderBy(t => t.Distance)
.ThenBy(t => t.Priority) .ThenBy(t => t.Priority)
.FirstOrDefault(); .FirstOrDefault();
@@ -606,7 +608,7 @@ public class Day15 : IDay
entity.MoveTo(_map, finalTarget.X, finalTarget.Y); entity.MoveTo(_map, finalTarget.X, finalTarget.Y);
// Attack // Attack
Entity targetInRangeAfterMove = GetBestInRangeTarget(entity, entitiesTargets); Entity? targetInRangeAfterMove = GetBestInRangeTarget(entity, entitiesTargets);
if (targetInRangeAfterMove != null) if (targetInRangeAfterMove != null)
{ {
entity.Attack(_map, targetInRangeAfterMove); entity.Attack(_map, targetInRangeAfterMove);
@@ -713,7 +715,7 @@ public class Day15 : IDay
} }
} }
private void ProcessCell(char[,] grid, char empty, Queue<BFSCell> frontier, BFSCell current, int nextX, int nextY) private void ProcessCell(char[,] grid, char empty, Queue<BFSCell> frontier, BFSCell? current, int nextX, int nextY)
{ {
if (nextX < 0 || nextX >= _width || nextY < 0 || nextY >= _height) { return; } if (nextX < 0 || nextX >= _width || nextY < 0 || nextY >= _height) { return; }
if (grid[nextX, nextY] == empty || current == null) if (grid[nextX, nextY] == empty || current == null)

4
AdventOfCode2018/Day16.cs
View File

@@ -87,8 +87,8 @@ public class Day16 : IDay
int count = 0; int count = 0;
int i = 0; int i = 0;
bool end = false; bool end = false;
int[] beforeRegisters = null; int[]? beforeRegisters = null;
int[] instruction = null; int[]? instruction = null;
const string beforeKeyword = "Before: ["; const string beforeKeyword = "Before: [";
const string afterKeyword = "After: ["; const string afterKeyword = "After: [";
while (inputs.Length > i) while (inputs.Length > i)

8
AdventOfCode2018/Day23.cs
View File

@@ -68,8 +68,8 @@ public class Day23 : IDay
public string ResolvePart1(string[] inputs) public string ResolvePart1(string[] inputs)
{ {
List<NanoBot> nanoBots = NanoBot.ListFromStrings(inputs); List<NanoBot> nanoBots = NanoBot.ListFromStrings(inputs);
NanoBot bestNanoBot = nanoBots.OrderBy(nanoBot => nanoBot.Range).LastOrDefault(); NanoBot? bestNanoBot = nanoBots.OrderBy(nanoBot => nanoBot.Range).LastOrDefault();
int countInRange = nanoBots.Count(nanoBot => bestNanoBot.InRange(nanoBot)); int countInRange = nanoBots.Count(nanoBot => bestNanoBot?.InRange(nanoBot) == true);
return countInRange.ToString(); return countInRange.ToString();
} }
@@ -150,7 +150,7 @@ public class Day23 : IDay
public long Z { get; private init; } public long Z { get; private init; }
public long Range { get; private init; } public long Range { get; private init; }
private static NanoBot FromString(string strInput) private static NanoBot? FromString(string strInput)
{ {
string[] parts = strInput.Split(["pos=<", ",", ">, r="], StringSplitOptions.RemoveEmptyEntries); string[] parts = strInput.Split(["pos=<", ",", ">, r="], StringSplitOptions.RemoveEmptyEntries);
if (parts.Length != 4) { return null; } if (parts.Length != 4) { return null; }
@@ -167,7 +167,7 @@ public class Day23 : IDay
{ {
List<NanoBot> nanoBots = inputs List<NanoBot> nanoBots = inputs
.Select(FromString) .Select(FromString)
.Where(nanoBot => nanoBot != null) .OfType<NanoBot>()
.ToList(); .ToList();
return nanoBots; return nanoBots;
} }

2
AdventOfCode2020.Tests/AdventOfCode2020.Tests.csproj
View File

@@ -3,9 +3,11 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2020.Tests</RootNamespace> <RootNamespace>AdventOfCode2020.Tests</RootNamespace>
<IsPackable>false</IsPackable> <IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

1
AdventOfCode2020/AdventOfCode2020.csproj
View File

@@ -4,6 +4,7 @@
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2020</RootNamespace> <RootNamespace>AdventOfCode2020</RootNamespace>
</PropertyGroup> </PropertyGroup>

6
AdventOfCode2020/Day05.cs
View File

@@ -64,7 +64,7 @@ public class Day05 : IDay
int maxSerialNumber = 0; int maxSerialNumber = 0;
foreach (string input in inputs) foreach (string input in inputs)
{ {
Seat seat = Seat_Parse(input); Seat? seat = Seat_Parse(input);
if (seat == null) { continue; } if (seat == null) { continue; }
int newSerialNumber = seat.GetSerialNumber(); int newSerialNumber = seat.GetSerialNumber();
if (newSerialNumber > maxSerialNumber) { maxSerialNumber = newSerialNumber; } if (newSerialNumber > maxSerialNumber) { maxSerialNumber = newSerialNumber; }
@@ -83,7 +83,7 @@ public class Day05 : IDay
} }
foreach (string input in inputs) foreach (string input in inputs)
{ {
Seat seat = Seat_Parse(input); Seat? seat = Seat_Parse(input);
if (seat == null) { continue; } if (seat == null) { continue; }
seats[seat.Column][seat.Row] = 'X'; seats[seat.Column][seat.Row] = 'X';
@@ -166,7 +166,7 @@ public class Day05 : IDay
} }
} }
private Seat Seat_Parse(string input) private Seat? Seat_Parse(string input)
{ {
if (input.Length != 10 || if (input.Length != 10 ||
input.All(c => c == 'F' || c == 'B' || c == 'L' || c == 'R') == false input.All(c => c == 'F' || c == 'B' || c == 'L' || c == 'R') == false

13
AdventOfCode2020/Day07.cs
View File

@@ -123,25 +123,23 @@ public class Day07 : IDay
private class BaggageContainRule private class BaggageContainRule
{ {
public string BagColor { get; set; } public string BagColor { get; set; } = string.Empty;
public int Count { get; init; } public int Count { get; init; }
} }
private class BaggageRule private class BaggageRule
{ {
public string BagColor { get; set; } public string BagColor { get; set; } = string.Empty;
public List<BaggageContainRule> Contain { get; init; } public List<BaggageContainRule> Contain { get; } = [];
} }
private BaggageRule BaggageRule_Parse(string input) private BaggageRule BaggageRule_Parse(string input)
{ {
string[] words = input.Split(' '); string[] words = input.Split(' ');
string status = "Parse Color 1"; string status = "Parse Color 1";
BaggageRule rule = new() { BaggageRule rule = new();
Contain = [], BaggageContainRule? containRule = null;
};
BaggageContainRule containRule = null;
string color1 = string.Empty; string color1 = string.Empty;
foreach (string word in words) foreach (string word in words)
@@ -180,6 +178,7 @@ public class Day07 : IDay
status = "Parse Contain color 2"; status = "Parse Contain color 2";
break; break;
case "Parse Contain color 2": case "Parse Contain color 2":
if(containRule == null) { break; }
containRule.BagColor = string.Concat(color1, " ", word); containRule.BagColor = string.Concat(color1, " ", word);
rule.Contain.Add(containRule); rule.Contain.Add(containRule);
status = "Parse Contain continue"; status = "Parse Contain continue";

3
AdventOfCode2023.Tests/AdventOfCode2023.Tests.csproj
View File

@@ -3,10 +3,11 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>AdventOfCode2023.Tests</RootNamespace>
<Nullable>enable</Nullable> <Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2023.Tests</RootNamespace>
<IsPackable>false</IsPackable> <IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

2
AdventOfCode2023/AdventOfCode2023.csproj
View File

@@ -4,8 +4,8 @@
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>AdventOfCode2023</RootNamespace>
<Nullable>enable</Nullable> <Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2023</RootNamespace>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

6
AdventOfCode2024.Tests/AdventOfCode2024.Tests.csproj
View File

@@ -3,8 +3,8 @@
<PropertyGroup> <PropertyGroup>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>AdventOfCode2024.Tests</RootNamespace>
<Nullable>enable</Nullable> <Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2024.Tests</RootNamespace>
<IsPackable>false</IsPackable> <IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject> <IsTestProject>true</IsTestProject>
@@ -17,10 +17,6 @@
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets> <PrivateAssets>all</PrivateAssets>
</PackageReference> </PackageReference>
<PackageReference Include="coverlet.collector" Version="6.0.0">
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets>
</PackageReference>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>

2
AdventOfCode2024/AdventOfCode2024.csproj
View File

@@ -4,8 +4,8 @@
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework> <TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>AdventOfCode2024</RootNamespace>
<Nullable>enable</Nullable> <Nullable>enable</Nullable>
<RootNamespace>AdventOfCode2024</RootNamespace>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>