Solved day 1 part 2

2019/Day1/Part2.cs

@@ -1,53 +1,30 @@
 using System;
-using System.Collections.Generic;
+using System.Data;
 
 namespace Part2 {
 	public class Get {
-		public List<int[]> AllFuelModules( int[] modules ) {
+		public int[,] AllFuelModules( int[] modules ) {
 			
 			// declare the variables
-			List<int[]> returnList = new List<int[]>();
-			int[] modulesofmodule = new int[999]; // should be big enough xd
-			float mod;
-			int placeholder;
+			int[,] returnarray = new int[modules.Length, 999]; // make a 2D array, 999 is a bit overkill but it will work I guess
 
-			int count = -1; // dumb method ikr
-			
-			for( int i = 0; i < modules.Length; i++ ) { // loop through the modules
-				Console.WriteLine("----");
-				mod = (float)modules[i]; // make it a double
-				placeholder = (int)mod; 
-
-				//modulesofmodule[count] = (int)mod;
-
-				while( placeholder > 0 ) { // if the placeholder is greater than 0
-					count++;
-					
-					placeholder = (int)Math.Floor( mod/3 ) - 2; // then do the fuel calc for the fuel module
-					
-					if( placeholder < 0 ) { // if less than 0 then just make it 0
-						placeholder = 0;
-						modulesofmodule[count] = (int)placeholder; // add it to its own little list
-					} else {
-						modulesofmodule[count] = (int)placeholder; // same here
-					}
-					Console.WriteLine( count.ToString() + " val: " + placeholder.ToString() );
-					
+			for( int i = 0; i < modules.Length; i++ ) { // loop through each module
+				// i = module index
+				returnarray[i, 0] = modules[i]; // set the first to be the module
+				for( int mod_i = 1; returnarray[i, mod_i - 1] > 0; mod_i++ ) { // start at the second since we declared the first one above
+					returnarray[i, mod_i] = (int)Math.Floor( (float)returnarray[i, mod_i - 1] / 3 ) - 2;
+					if( returnarray[i, mod_i] < 0 ) { returnarray[i, mod_i] = 0; } // if less than 0 then just make it 0
 				}
-				count = -1; // reset the count
-				Console.WriteLine( "ID: " + i.ToString() );
-				returnList.Add( modulesofmodule ); // place the array in the list for that module
 			}
 
-			return returnList; // return the complete list
+			return returnarray; // return the complete array
 		}
 
-		public int RealFuelSum( List<int[]> fuelmodules ) {
+		public int addAllArray( int[,] array ) {
 			int sum = 0;
-			for( int arrayid = 0; arrayid < fuelmodules.Count; arrayid++ ) {
-				for( int i = 0; i < fuelmodules[arrayid].Length; i++ ) {
-					sum += fuelmodules[arrayid][i];
-					//Console.WriteLine( "Module " + arrayid.ToString() + "/" + fuelmodules.Count.ToString() + " | " + i.ToString() + "/" + fuelmodules[arrayid].Length.ToString() + " | val: " + fuelmodules[arrayid][i].ToString() );
+			for( int i = 0; i < array.GetLength(0); i++ ) {
+				for( int mod_i = 0; mod_i < array.GetLength(1); mod_i++ ) {
+					sum += array[i, mod_i];
 				}
 			}
 			return sum;

2019/Day1/Program.cs

@@ -15,13 +15,11 @@ namespace Day1 {
 			modules = get1.FuelModules( inputs ); // get the fuel for the mass'es
 			Console.WriteLine( get1.FuelSum( modules ) );
 
-			List<int[]> modulesOfModules = new List<int[]>();
+			//int[,] modulesOfModules = new int[,];
 			Part2.Get get2 = new Part2.Get();
-			modulesOfModules = get2.AllFuelModules( modules );
-
-			Console.Write( "Real sum of fuel: " );
-			Console.Write( get2.RealFuelSum(modulesOfModules) );
-			Console.Write( "\n" );
+			Console.Write( "Real sum: " );
+			Console.Write( get2.addAllArray( get2.AllFuelModules( modules ) ) );
+			Console.WriteLine("");
 
 		}
 	}