AdventOfCode2023/AdvendOfCode2023/Day1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AdvendOfCode2023
{
    public class Day1
    {
        List<string> input = FileReader.Input("day1");

        public int StringCheck(string input)
        {
            int first = 0;
            int second = 0;

            for (int i = 0; i < input.Length; i++)
            {
                int result;
                {
                    if (int.TryParse(input[i].ToString(), out result) && first == 0)
                    {
                        first = result;
                    }
                    else if (int.TryParse(input[i].ToString(), out result) && first > 0)
                    {
                        second = result;

                    }
                }
            }
            if (second == 0)
            {
                second = first;
            }
            var concat = first.ToString() + second.ToString();
            return Convert.ToInt32(concat);
        }

        public int StringCheckPartTwo(string input)
        {

            if (input.Contains("one"))
            {
                input = input.Replace("one", "o1ne");
            }
            if(input.Contains("two"))
            {
                input = input.Replace("two", "t2wo");
            }
            if (input.Contains("three"))
            {
                input = input.Replace("three", "t3hree");
            }
            if (input.Contains("four"))
            {
                input = input.Replace("four", "f4our");
            }
            if (input.Contains("five"))
            {
                input = input.Replace("five", "f5ive");
            }
            if (input.Contains("six"))
            {
                input = input.Replace("six", "s6ix");
            }
            if (input.Contains("seven"))
            {
                input = input.Replace("seven", "s7even");
            }
            if (input.Contains("eight"))
            {
                input = input.Replace("eight", "e8ight");
            }
            if (input.Contains("nine"))
            {
                input = input.Replace("nine", "n9ine");
            }

            int first = 0;
            int second = 0;

            for (int i = 0; i < input.Length; i++)
            {
                int result;
                {
                    if (int.TryParse(input[i].ToString(), out result) && first == 0)
                    {
                        first = result;
                    }
                    else if (int.TryParse(input[i].ToString(), out result) && first > 0)
                    {
                        second = result;

                    }
                }
            }
            if (second == 0)
            {
                second = first;
            }
            var concat = first.ToString() + second.ToString();
            return Convert.ToInt32(concat);
        }

        public void Day1PartOne()
        {
            int result = 0;
            foreach (string inputItem in input)
            {
                result += StringCheck(inputItem);
            }

            Console.WriteLine("Part one: " + result);
        }
        public void Day1PartTwo()
        {
            int result = 0;
            foreach (string inputItem in input)
            {
                result += StringCheckPartTwo(inputItem);
            }

            Console.WriteLine("Part two: " + result);
        }
    }

}