public static void Problems() { var input = FileReader.ReadLinesLong("Inputs\\day10.txt"); input.Sort(); int distance3 = 1; int distance1 = 0; if (input[0] == 1) { distance1++; } if (input[0] == 3) { distance3++; } for (int i = 1; i < input.Count; i++) { if (input[i] - input[i - 1] == 3) { distance3++; } if (input[i] - input[i - 1] == 1) { distance1++; } } Console.WriteLine(distance1 * distance3); Console.WriteLine(options(input, 0, 0)); }
public static void Problems() { var input = FileReader.ReadLinesLong("Inputs\\day9.txt"); for (int i = 25; i < input.Count; i++) { if (!AddTwo(input, i, input[i])) { Console.WriteLine($"Part 1: {input[i]}"); var result2 = FindSum(input, input[i]); Console.WriteLine($"Part 2: {result2}"); break; } } }
public static void Problems() { var input = FileReader.ReadLinesLong("Inputs\\day25.txt"); long number = 1; long repeat = 0; while (number != input[0]) { number = (number * 7) % 20201227; repeat++; } number = 1; for (int i = 1; i <= repeat; i++) { number = (number * input[1]) % 20201227; } Console.WriteLine(number); }