06.GoldMine

using System;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //INPUT
            int numberLocations = int.Parse(Console.ReadLine());

            //CHANGEABLE INPUT
            double expectedGoldForOneDay = 0;
            int daysAtCurrentLoacation = 0;

            double goldForTheDay = 0;
            double goldDaysSum = 0;
            double goldDaysAverage = 0;

            //CALCULATIONS
            for (int i = 1; i <= numberLocations; i++)
            {
                expectedGoldForOneDay = double.Parse(Console.ReadLine());
                daysAtCurrentLoacation = int.Parse(Console.ReadLine());

                for (int j = 1; j <= daysAtCurrentLoacation; j++)
                {
                    goldForTheDay = double.Parse(Console.ReadLine());
                    goldDaysSum += goldForTheDay;
                    goldDaysAverage = goldDaysSum / daysAtCurrentLoacation;
                }

                if (goldDaysAverage >= expectedGoldForOneDay)
                {
                    Console.WriteLine($"Good job! Average gold per day: {(goldDaysAverage):f2}.");
                }
                else
                {
                    Console.WriteLine($"You need {(expectedGoldForOneDay - goldDaysAverage):f2} gold.");
                }

                //CLEAR DATA
                goldForTheDay = 0;
                goldDaysSum = 0;
                goldDaysAverage = 0;
            }
        }
    }
}