Reddit Daily Programmer 347 Easy

Easy.cs

using System;

namespace Reddit
{
    internal static class Easy
    {
        internal static void Run()
        {
            string[] input = new string[]
            {
                "15 18",
                "13 16",
                "9 12",
                "3 4",
                "17 20",
                "9 11",
                "17 18",
                "4 5",
                "5 6",
                "4 5",
                "5 6",
                "13 16",
                "2 3",
                "15 17",
                "13 14"
            };
            
            bool[] output = new bool[0];
            
            for (int i = 0; i < input.Length; i++)
            {
                string[] array = input[i].Split(' ');
                
                int index = int.Parse(array[0]);
                int size = int.Parse(array[1]);
                
                if (output.Length < size)
                {
                    Array.Resize(ref output, size);
                }
                
                for (int j = index; j < size; j++)
                {
                    output[j] = true;
                }
            }
            
            int count = 0;
            for (int i = 0; i < output.Length; i++)
            {
                if (output[i] == true)
                {
                    count = count + 1;
                }
            }
            
            Console.Write(count);
        }
    }
}