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