using System;

using System.Collections.Generic;   

using System.Linq;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int total = 721;

        var tupleList = new List<(int, decimal)>();

        tupleList.Add((200,0.16m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((66,0.79m));

        tupleList.Add((53,0.32m));

        SolvedProblemRoundNumber(tupleList, 721);

        foreach(var item in tupleList) {

            Console.WriteLine($"{item.Item1}, {item.Item2}");

        }

        Console.WriteLine($"{tupleList.Sum(e => e.Item1)} - {total}");

    }

    public static void SolvedProblemRoundNumber(List<(int original, decimal decimalPart)> listInputs, decimal totalMoney)

    {

        Func<bool> isNeedRound = () => listInputs.Sum(e => e.original) < totalMoney;

        if (isNeedRound())

        {

            decimal[] decimalPartOrderDesc = listInputs

                .OrderByDescending(e => e.decimalPart)

                .Select(e => e.decimalPart)

                .Distinct()

                .ToArray();

            bool isDone = false;

            foreach (var maxItem in decimalPartOrderDesc)

            {

                for (int i = 0; i < listInputs.Count - 1; i++)

                {

                    if (listInputs[i].decimalPart == maxItem) 

                    {

                        listInputs[i] = listInputs[i] with

                        {

                            original = listInputs[i].original + 1

                        };

                    }

​

                    if (!isNeedRound())

                    {

                        isDone = true;

                        break;

                    }

                }

​

                if (isDone)

                    break;

            }

​

        }

    }

}