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This commit is contained in:
Stevan Freeborn
2023-12-11 02:19:07 -06:00
parent 77e5ab8018
commit 307dc92ec9
3 changed files with 183 additions and 24 deletions
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10/PipeMaze.Tests/GlobalUsings.cs
+1 -1
View File
@@ -1,3 +1,3 @@
global using FluentAssertions;
global using Xunit;
global using Xunit;
10/PipeMaze.Tests/MazeTests.cs
+11 -4
View File
@@ -8,8 +8,14 @@ public class MazeTests
public void Parse_WhenGivenInput_ItShouldReturnExpectedMaze(string[] input, Maze expectedMaze, Pipe? expectedStartingPipe)
{
var maze = Maze.Parse(input);
maze.Should().BeEquivalentTo(expectedMaze);
maze.StartingPipe.Should().BeEquivalentTo(expectedStartingPipe);
maze
.Should()
.BeEquivalentTo(expectedMaze);
maze.StartingPipe
.Should()
.BeEquivalentTo(expectedStartingPipe);
}
[Theory]
@@ -45,8 +51,9 @@ public class MazeTests
[MemberData(nameof(TestData.AreaTestData), MemberType = typeof(TestData))]
public void Area_WhenGivenInput_ItShouldReturnExpectedArea(string[] input, int expectedArea)
{
var maze = Maze.Parse(input);
maze.GetAreaOfLoop()
Maze
.Parse(input)
.GetAreaOfLoop()
.Should()
.Be(expectedArea);
}
10/PipeMaze/Program.cs
+171 -19
View File
@@ -43,7 +43,13 @@ public class Program
}
}
/// <summary>
/// Represents a maze of pipes.
/// </summary>
/// <param name="width">The width of the maze.</param>
/// <param name="height">The height of the maze.</param>
/// <param name="pipes">The pipes in the maze.</param>
/// <returns>An instance of <see cref="Maze"/>.</returns>
public class Maze(
int width,
int height,
@@ -61,14 +67,29 @@ public class Maze(
{ 'S', PipeType.Unknown },
};
public int Width { get; init; } = width;
public int Height { get; init; } = height;
private int Width { get; init; } = width;
private int Height { get; init; } = height;
/// <summary>
/// Gets the pipes in the maze.
/// </summary>
public List<Pipe> Pipes { get; init; } = pipes;
/// <summary>
/// Gets the starting pipe in the maze.
/// </summary>
public Pipe? StartingPipe => Pipes.FirstOrDefault(p => p.Type is PipeType.Unknown);
/// <summary>
/// Gets the farthest step from the start.
/// </summary>
/// <returns>The farthest step from the start.</returns>
public int GetFarthestStepFromStart() => GetLoop().Count / 2;
/// <summary>
/// Gets the area of the loop.
/// </summary>
/// <returns>The area of the loop.</returns>
public int GetAreaOfLoop()
{
var count = 0;
@@ -81,17 +102,24 @@ public class Maze(
PipeType.UpAndLeft,
};
// Loop through each row
for (var row = 0; row < Height; row++)
{
// Loop through each column in the row
for (var column = 0; column < Width; column++)
{
// Check if a pipe in loop exists at the current coordinate
var pipe = loop.FirstOrDefault(p => p.Coordinate.Column == column && p.Coordinate.Row == row);
// If a pipe does not exist at the current coordinate
// and we are inside the loop, increment the count
if (pipe is null && areInsideLoop is true)
{
count++;
}
// If a pipe exists at the current coordinate and the pipe is
// representative of a vertical boundary, toggle the areInsideLoop flag
if (
pipe is not null &&
verticalBoundaries.Contains(pipe.Type) is true
@@ -105,6 +133,10 @@ public class Maze(
return count;
}
/// <summary>
/// Gets the loop in the maze.
/// </summary>
/// <returns>The loop in the maze.</returns>
public List<Pipe> GetLoop()
{
if (StartingPipe is null)
@@ -138,6 +170,10 @@ public class Maze(
return loop;
}
/// <summary>
/// Identifies the type of the starting pipe.
/// </summary>
/// <returns>The type of the starting pipe.</returns>
public PipeType IdentifyStartPipeType()
{
if (StartingPipe is null)
@@ -201,6 +237,11 @@ public class Maze(
return PipeType.Unknown;
}
/// <summary>
/// Gets the connecting pipes of the provided pipe.
/// </summary>
/// <param name="pipe">The pipe to get the connecting pipes of.</param>
/// <returns>The connecting pipes of the provided pipe.</returns>
public List<Pipe?> GetConnectingPipes(Pipe pipe)
{
var connectingPipes = new List<Pipe?>();
@@ -208,6 +249,10 @@ public class Maze(
var isNotOnFirstColumn = pipe.Coordinate.Column > 0;
var isNotOnLastRow = pipe.Coordinate.Row < Height - 1;
var isNotOnLastColumn = pipe.Coordinate.Column < Width - 1;
var nextRow = pipe.Coordinate.Row + 1;
var nextColumn = pipe.Coordinate.Column + 1;
var previousRow = pipe.Coordinate.Row - 1;
var previousColumn = pipe.Coordinate.Column - 1;
switch (pipe.Type)
{
@@ -216,14 +261,22 @@ public class Maze(
if (isNotOnFirstRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row - 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == previousRow
)
);
}
if (isNotOnLastRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row + 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == nextRow
)
);
}
@@ -234,14 +287,22 @@ public class Maze(
if (isNotOnFirstColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column - 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == previousColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
if (isNotOnLastColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column + 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == nextColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -252,14 +313,22 @@ public class Maze(
if (isNotOnFirstRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row - 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == previousRow
)
);
}
if (isNotOnLastColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column + 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == nextColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -270,14 +339,22 @@ public class Maze(
if (isNotOnFirstRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row - 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == previousRow
)
);
}
if (isNotOnFirstColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column - 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == previousColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -288,14 +365,22 @@ public class Maze(
if (isNotOnLastRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row + 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == nextRow
)
);
}
if (isNotOnLastColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column + 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == nextColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -306,14 +391,22 @@ public class Maze(
if (isNotOnLastRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row + 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == nextRow
)
);
}
if (isNotOnFirstColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column - 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == previousColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -324,28 +417,44 @@ public class Maze(
if (isNotOnFirstRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row - 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == previousRow
)
);
}
if (isNotOnLastColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column + 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == nextColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
if (isNotOnLastRow)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column && p.Coordinate.Row == pipe.Coordinate.Row + 1)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == pipe.Coordinate.Column &&
p.Coordinate.Row == nextRow
)
);
}
if (isNotOnFirstColumn)
{
connectingPipes.Add(
Pipes.FirstOrDefault(p => p.Coordinate.Column == pipe.Coordinate.Column - 1 && p.Coordinate.Row == pipe.Coordinate.Row)
Pipes.FirstOrDefault(
p =>
p.Coordinate.Column == previousColumn &&
p.Coordinate.Row == pipe.Coordinate.Row
)
);
}
@@ -358,6 +467,11 @@ public class Maze(
return connectingPipes;
}
/// <summary>
/// Parses the provided input into a maze.
/// </summary>
/// <param name="input">The input to parse.</param>
/// <returns>An instance of <see cref="Maze"/>.</returns>
public static Maze Parse(string[] input)
{
var width = input[0].Length;
@@ -381,6 +495,14 @@ public class Maze(
}
}
/// <summary>
/// Represents a pipe in a maze.
/// </summary>
/// <param name="symbol">The symbol of the pipe.</param>
/// <param name="type">The type of the pipe.</param>
/// <param name="row">The row of the pipe.</param>
/// <param name="column">The column of the pipe.</param>
/// <returns>An instance of <see cref="Pipe"/>.</returns>
public class Pipe(
char symbol,
PipeType type,
@@ -388,25 +510,55 @@ public class Pipe(
int column
)
{
/// <summary>
/// Gets the symbol of the pipe.
/// </summary>
public char Symbol { get; init; } = symbol;
/// <summary>
/// Gets the type of the pipe.
/// </summary>
public PipeType Type { get; init; } = type;
/// <summary>
/// Gets the coordinate of the pipe.
/// </summary>
public PipeCoordinate Coordinate { get; init; } = new(column, row);
}
/// <summary>
/// Represents a coordinate of a pipe in a maze.
/// </summary>
/// <param name="column">The column of the pipe.</param>
/// <param name="row">The row of the pipe.</param>
/// <returns>An instance of <see cref="PipeCoordinate"/>.</returns>
public class PipeCoordinate(
int column,
int row
) : IEquatable<PipeCoordinate>
{
/// <summary>
/// Gets the column of the pipe.
/// </summary>
public int Column { get; init; } = column;
/// <summary>
/// Gets the row of the pipe.
/// </summary>
public int Row { get; init; } = row;
/// <summary>
/// Determines whether the provided object is equal to the current object.
/// </summary>
public bool Equals(PipeCoordinate? other) =>
other is not null &&
Column == other.Column &&
Row == other.Row;
}
/// <summary>
/// Represents the type of a pipe in a maze.
/// </summary>
public enum PipeType
{
UpAndDown, // Vertical Pipe