/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
int[] range = input.GetInput("-").Select(x => int.Parse(x)).ToArray();
int count = 0;
for (int i = range[0]; i < range[1]; ++i)
{
string password = i.ToString();
bool ascending = password.Zip(password.Skip(1), (a, b) => a <= b).All(x => x);
bool same = false;
for (int j = 0; j < password.Length - 1; ++j)
{
if (password[j] == password[j + 1])
{
if ((j + 2 >= password.Length || password[j] != password[j + 2]) &&
(j - 1 < 0 || password[j] != password[j - 1]))
{
same = true;
break;
}
}
}
if (same && ascending)
{
count++;
}
}
return(count);
}
/// <summary>
/// The first puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle1(AOCInput input)
{
int[] software = input.GetInput(",").Select(x => int.Parse(x)).ToArray();
IntcodeComputer computer;
int[] sequence = new int[] { 0, 1, 2, 3, 4 };
var permutations = GetPermutations <int>(sequence, 5);
long maxOutput = 0;
int maxSequence = 0;
for (int i = 0; i < permutations.Count(); ++i)
{
long output = 0;
for (int j = 0; j < 5; ++j)
{
computer = new IntcodeComputer((long[])software.Clone(), false);
computer.Run(permutations.ElementAt(i).ElementAt(j), output);
output = computer.Outputs.Last();
}
if (output > maxOutput)
{
maxOutput = output;
maxSequence = i;
}
}
return(maxOutput);
}
/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
long[] program = input.GetInput(",").Select(x => long.Parse(x)).ToArray();
IntcodeComputer computer = new IntcodeComputer(program);
computer.Run(5);
return computer.Outputs[0];
}
/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
long[] software = input.GetInput(",").Select(x => long.Parse(x)).ToArray();
IntcodeComputer computer = new IntcodeComputer(software, false);
computer.Run(2);
return(computer.Outputs.Last());
}
/// <summary>
/// The first puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle1(AOCInput input)
{
int[] program = input.GetInput(",").Select(x => int.Parse(x)).ToArray();
program[1] = 12;
program[2] = 2;
IntcodeComputer computer = new IntcodeComputer(program);
return(computer.Run());
}
/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
int[] software = input.GetInput(",").Select(x => int.Parse(x)).ToArray();
IntcodeComputer[] computer = new IntcodeComputer[5];
int[] sequence = new int[] { 5, 6, 7, 8, 9 };
var permutations = GetPermutations <int>(sequence, 5);
long maxOutput = 0;
int maxSequence = 0;
for (int i = 0; i < permutations.Count(); ++i)
{
long output = 0;
// Initialize computers.
for (int j = 0; j < computer.Length; ++j)
{
computer[j] = new IntcodeComputer((long[])software.Clone(), false);
computer[j].Run(permutations.ElementAt(i).ElementAt(j), output);
output = computer[j].Outputs.Last();
}
int curComp = 0;
// Computer feedback loop.
while (true)
{
if (computer[curComp].Halted)
{
break;
}
computer[curComp].Run(output);
output = computer[curComp].Outputs.Last();
curComp = (curComp + 1) % 5;
}
// Check if output is highest.
if (output > maxOutput)
{
maxOutput = output;
maxSequence = i;
}
}
return(maxOutput);
}
/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
int[] data = input.GetInput().ToCharArray().Select(x => int.Parse(x.ToString())).ToArray();
int width = 25;
int height = 6;
int[][] layers = new int[data.Length / (width * height)][];
// Copy layer data.
for (int i = 0; i < layers.Length; ++i)
{
layers[i] = new int[width * height];
Array.Copy(data, i * (width * height), layers[i], 0, width * height);
}
int[] image = new int[width * height];
// Get image data by combining the layers.
for (int i = 0; i < width * height; ++i)
{
for (int j = 0; j < layers.Length; ++j)
{
if (layers[j][i] != 2)
{
image[i] = layers[j][i];
break;
}
}
}
// Visualize the image in the console.
for (int i = 0; i < height; ++i)
{
for (int j = 0; j < width; ++j)
{
Console.Write(image[j + width * i] == 0 ? " " : "X");
}
Console.WriteLine();
}
return("See console ouptut.");
}
/// <summary>
/// The first puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle1(AOCInput input)
{
int[] range = input.GetInput("-").Select(x => int.Parse(x)).ToArray();
int count = 0;
for (int i = range[0]; i < range[1]; ++i)
{
string password = i.ToString();
bool ascending = password.Zip(password.Skip(1), (a, b) => a <= b).All(x => x);
bool same = password.Zip(password.Skip(1), (a, b) => a == b).Any(x => x);
if (same && ascending)
{
count++;
}
}
return(count);
}
/// <summary>
/// The first puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle1(AOCInput input)
{
int[] data = input.GetInput().ToCharArray().Select(x => int.Parse(x.ToString())).ToArray();
int width = 25;
int height = 6;
int[][] layers = new int[data.Length / (width * height)][];
// Copy layer data.
for (int i = 0; i < layers.Length; ++i)
{
layers[i] = new int[width * height];
Array.Copy(data, i * (width * height), layers[i], 0, width * height);
}
// Get layer with least zeroes.
int[] leastZeroes = layers.OrderBy(image => image.Count(x => x == 0)).First();
return(leastZeroes.Count(x => x == 1) * leastZeroes.Count(x => x == 2));
}
/// <summary>
/// The second puzzle.
/// </summary>
/// <param name="input">The AOCInput object for getting the input.</param>
/// <returns>The answer.</returns>
public override object Puzzle2(AOCInput input)
{
int[] program = input.GetInput(",").Select(x => int.Parse(x)).ToArray();
for (int noun = 0; noun < 99; ++noun)
{
for (int verb = 0; verb < 99; ++verb)
{
program[1] = noun;
program[2] = verb;
IntcodeComputer computer = new IntcodeComputer((int[])program.Clone());
int output = computer.Run();
if (output == 19690720)
{
return(100 * noun + verb);
}
}
}
return("Program failed!");
}
private void CreateTaskForDay(int currentDay)
{
var input = AOCInput.GetInput(currentDay);
if (currentDay == 1)
{
CreateTask(() => Day1Main.Part1(input), () => Day1Main.Part2(input));
Day1Main.StartPart1ComputeShader(input);
}
else if (currentDay == 2)
{
CreateTask(() => Day2Main.Part1(input), () => Day2Main.Part2(input));
}
else if (currentDay == 3)
{
CreateTask(() => Day3Main.Part1(input) + "", () => Day3Main.Part2(input) + "");
}
else if (currentDay == 4)
{
CreateTask(() => Day4Main.Part1(input) + "", () => Day4Main.Part2(input) + "");
}
else if (currentDay == 5)
{
CreateTask(() => Day5Main.Part1(input) + "", () => Day5Main.Part2(input) + "");
}
else if (currentDay == 6)
{
CreateTask(() => Day6Main.Part1(input) + "", () => Day6Main.Part2(input) + "");
}
else if (currentDay == 7)
{
CreateTask(() => Day7Main.Part1(input) + "", () => Day7Main.Part2(input) + "");
}
else if (currentDay == 8)
{
CreateTask(() => Day8Main.Part1(input) + "", () => Day8Main.Part2(input) + "");
}
else if (currentDay == 9)
{
CreateTask(() => Day9Main.Part1(input) + "", () => Day9Main.Part2(input) + "");
}
else if (currentDay == 10)
{
CreateTask(() => Day10Main.Part1(input) + "", () => Day10Main.Part2(input) + "");
}
else if (currentDay == 11)
{
CreateTask(() => Day11Main.Part1(input) + "", () => Day11Main.Part2(input) + "");
}
else if (currentDay == 12)
{
CreateTask(() => Day12Main.Part1(input) + "", () => Day12Main.Part2(input) + "");
}
else if (currentDay == 13)
{
CreateTask(() => Day13Main.Part1(input) + "", () => Day13Main.Part2(input) + "");
}
else if (currentDay == 14)
{
CreateTask(() => Day14Main.Part1(input) + "", () => Day14Main.Part2(input) + "");
}
else if (currentDay == 15)
{
CreateTask(() => Day15Main.Part1(input) + "", () => Day15Main.Part2(input) + "");
}
}