using System; namespace _2021___Day_01 { class Program { static void Main() { int counter = 0; string line; int[] fileBuffer = new int[2000]; // Read the file and display it line by line. System.IO.StreamReader file = new System.IO.StreamReader(@"../../../../Input.in"); while ((line = file.ReadLine()) != null) { fileBuffer[counter] = int.Parse(line); counter++; } file.Close(); counter = 0; for (int i = 1; i < fileBuffer.Length; i++) { if (fileBuffer[i] > fileBuffer[i-1]) { Console.WriteLine(fileBuffer[i].ToString() + " is bigger than " + fileBuffer[i - 1]); counter++; } } Console.WriteLine("There are " + counter.ToString() + " increments"); counter = 0; for (int i = 3; i < fileBuffer.Length; i++) { if (fileBuffer[i] + fileBuffer[i - 1] + fileBuffer[i - 2] > fileBuffer[i - 1] + fileBuffer[i - 2] + fileBuffer[i - 3]) { counter++; } } Console.WriteLine("There are " + counter.ToString() + " three-sum window increments"); } } }