Exemplo n.º 1
0
        public static int Run(int first, int second)
        {
            List <int> numbers = AdventUtils.ReadCommaIntList("Inputs/Day2Input.txt");

            numbers[1] = first;
            numbers[2] = second;

            int currentPoint = 0;

            while (true)
            {
                if (numbers[currentPoint] == 99)
                {
                    return(numbers[0]);
                }

                int instruction = numbers[currentPoint];
                var value1      = numbers[currentPoint + 1];
                var value2      = numbers[currentPoint + 2];
                var position    = numbers[currentPoint + 3];

                if (instruction != 1 && instruction != 2)
                {
                    throw new Exception("Uh Oh");
                }

                numbers[position] = instruction == 1 ? numbers[value1] + numbers[value2] : numbers[value1] * numbers[value2];

                currentPoint += 4;
            }
        }
Exemplo n.º 2
0
        public static int Run()
        {
            List <int> numbers = AdventUtils.ReadCommaIntList("Inputs/Day5Input.txt");

            int location = 0;

            while (numbers[location] != 99)
            {
                (int, List <(bool, int)>)nextCode = ReadOpCode(numbers, location);
                RunOpCode(nextCode.Item1, nextCode.Item2, numbers, ref location);
            }

            return(0);
        }
Exemplo n.º 3
0
        static public int Run()
        {
            int maxValue = int.MinValue;

            List <int> instructions = AdventUtils.ReadCommaIntList("Inputs/Day7Input.txt");
            List <int> opCodes      = new List <int>()
            {
                0, 1, 2, 3, 4
            };

            var things = opCodes.Permute();

            foreach (var foo in things)
            {
                var thing = foo.GetEnumerator();
                thing.MoveNext();
                int output1 = IntCode.Run(new List <int>(instructions), new List <int>()
                {
                    thing.Current, 0
                });
                thing.MoveNext();
                int output2 = IntCode.Run(new List <int>(instructions), new List <int>()
                {
                    thing.Current, output1
                });
                thing.MoveNext();

                int output3 = IntCode.Run(new List <int>(instructions), new List <int>()
                {
                    thing.Current, output2
                });
                thing.MoveNext();

                int output4 = IntCode.Run(new List <int>(instructions), new List <int>()
                {
                    thing.Current, output3
                });
                thing.MoveNext();

                int output5 = IntCode.Run(new List <int>(instructions), new List <int>()
                {
                    thing.Current, output4
                });
                maxValue = Math.Max(maxValue, output5);
            }

            return(maxValue);
        }
Exemplo n.º 4
0
        public static int Run()
        {
            // Is it going to be better to do this as obscure or as able to see?

            // See might be the easier option, we can do width to height ratio, then work out where that would intercept each row/column and
            // check for an asteroid there?

            // OR we could do it as the blocks? Where we know that whole numbers are required, except that is not true.

            List <(int, int)> asteroids = AdventUtils.ReadAsteroidMap("Inputs/Day10Input.txt");

            (int, int)station = (26, 29);
            //(int, int) station = (11, 13);
            //double angle = Angle((11, 12), station);
            var removedCount = 0;

            while (removedCount < 200)
            {
                var current = asteroids.Where(x => CanSee(x, station, asteroids)).ToList();
                current.Remove(station);
                var sorted = current.OrderBy(x => Angle(x, station)).ToList();
                var item   = sorted[199];
                return(item.Item1 * 100 + item.Item2);
            }

            bool answer = CanSee((6, 0), (4, 2), asteroids);

            List <(int, (int, int))> seeCount = new List <(int, (int, int))>();

            foreach (var item in asteroids)
            {
                int count = -1;
                foreach (var other in asteroids)
                {
                    if (CanSee(item, other, asteroids))
                    {
                        ++count;
                    }
                }
                seeCount.Add((count, item));
            }

            var location = seeCount.Where(y => y.Item1 == seeCount.Max(x => x.Item1));

            return(0);
        }
Exemplo n.º 5
0
        public static int Run()
        {
            List <int> input = AdventUtils.ReadIntList("Inputs/Day8Input.txt");

            List <List <List <int> > > layers = new List <List <List <int> > >();

            // 25 wide by 6 tall

            int layersCount = input.Count / (25 * 6);
            int count       = 0;

            for (int i = 0; i < layersCount; ++i)
            {
                List <List <int> > currentLayer = new List <List <int> >();
                for (int j = 0; j < 6; ++j)
                {
                    List <int> currentRow = new List <int>();
                    for (int k = 0; k < 25; ++k)
                    {
                        currentRow.Add(input[count]);
                        ++count;
                    }
                    currentLayer.Add(currentRow);
                }
                layers.Add(currentLayer);
            }
            List <List <int> > finalPicture = new List <List <int> >();

            for (int i = 0; i < 6; ++i)
            {
                List <int> values = new List <int>();
                for (int j = 0; j < 25; ++j)
                {
                    for (int k = 0; k < layers.Count; ++k)
                    {
                        if (layers[k][i][j] != 2)
                        {
                            values.Add(layers[k][i][j]);
                            break;
                        }

                        if (k == layersCount - 1)
                        {
                            throw new ArgumentException("uh oh");
                        }
                    }
                }
                finalPicture.Add(values);
            }


            foreach (var row in finalPicture)
            {
                foreach (var value in row)
                {
                    if (value == 1)
                    {
                        Console.Write("*");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }
                Console.Write("\n");
            }

            return(0);
        }