View difference between Paste ID: p7vDDB1a and MM0bkR5d

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace _2.SoftUni_Water_Supplies
 {
     class Program
     {
         static void Main(string[] args)
         {
             double totalWater = double.Parse(Console.ReadLine());
             double[] bottles = Console.ReadLine().Split().Select(double.Parse).ToArray();
             double capacity = double.Parse(Console.ReadLine());
 
             double bottleCapacity = 0;
             double waterSpent = 0;
             double totalWaterSpent = 0;
             int bottlesLeft = 0;
             int insufficiencyPoint = -1;
             double littersNeeded = 0;
             bool even = (totalWater % 2 == 0);
 
             if (totalWater % 2 == 0)
             {
                 for (int bottle = 0; bottle < bottles.Length; bottle++)
                 {
                     bottleCapacity = bottles[bottle];
                     if (capacity - bottleCapacity <= totalWater)
                     {
                         waterSpent = capacity - bottleCapacity;
                         totalWaterSpent += waterSpent;
                         bottles[bottle] += waterSpent;
                         totalWater -= waterSpent;
                     }
                     else
                     {
                         insufficiencyPoint = bottle;
                         waterSpent = totalWater;
                         totalWaterSpent += waterSpent;
                         bottles[bottle] += waterSpent;
                         totalWater = 0;
                         bottlesLeft = bottles.Length - bottle;
                         for (int halfFull = insufficiencyPoint; halfFull < insufficiencyPoint + bottlesLeft; halfFull++)
                         {
                             bottleCapacity = bottles[halfFull];
                             littersNeeded += capacity - bottleCapacity;
                         }
                         break;
                     }
                 } // end of for
             } //end of if
 
             else
             {
                 for (int bottle = bottles.Length - 1; bottle >= 0; bottle--)
                 {
                     bottleCapacity = bottles[bottle];
                     if (capacity - bottleCapacity <= totalWater)
                     {
                         waterSpent = capacity - bottleCapacity;
                         totalWaterSpent += waterSpent;
                         bottles[bottle] += waterSpent;
                         totalWater -= waterSpent;
                     }
                     else
                     {
                         insufficiencyPoint = bottle;
                         waterSpent = totalWater;
                         totalWaterSpent += waterSpent;
                         bottles[bottle] += waterSpent;
                         totalWater = 0;
                         bottlesLeft = bottle + 1;
                         for (int halfFull = insufficiencyPoint; halfFull >= 0; halfFull--)
                         {
                             bottleCapacity = bottles[halfFull];
                             littersNeeded += capacity - bottleCapacity;
                         }
                         break;
                     }
                 }//end of for
             }//end of else
 
             int[] remainingBottlesIndexes = new int[bottlesLeft];
 
             if (insufficiencyPoint != -1 && even)
             {
                 int k = 0;
                 for (int bottle = bottles.Length - 1; bottle >= insufficiencyPoint; bottle--)
                 {
                     remainingBottlesIndexes[k] = bottle;
                     k++;
                 }
                 remainingBottlesIndexes = remainingBottlesIndexes.Reverse().ToArray();
             }
             else if (insufficiencyPoint != -1 && !even)
             {
 
                 for (int bottle = 0; bottle < bottlesLeft; bottle++)
                 {
                     remainingBottlesIndexes[bottle] = bottle;
                 }
 
                 remainingBottlesIndexes = remainingBottlesIndexes.Reverse().ToArray();
             }
 
 
             if (bottlesLeft == 0)
             {
                 Console.WriteLine("Enough water!");
                 Console.WriteLine($"Water left: {totalWater}l.");
             }
             else
             {
                 Console.WriteLine("We need more water!");
                 Console.WriteLine($"Bottles left: {bottlesLeft}");
                 Console.WriteLine("With indexes: " + string.Join(", ", remainingBottlesIndexes)); ;
                 Console.WriteLine($"We need {littersNeeded} more liters!");
             }
         }
     }
 }