Day 2 Part 2 stuff

2019/Day2/Part1.cs

@@ -11,7 +11,7 @@ namespace Part1 {
 	}
 	public class compile {
 		public const int NEXT = 4; // steps per opcode
-		public bool writedebug = true;
+		public bool writedebug = !false;
 
 		public vars.intcode getOpcode( int opcode ) {
 			return (vars.intcode)opcode; // return the opcode, if 1 then return "ADD" etc
@@ -29,15 +29,15 @@ namespace Part1 {
 			if( opcode == vars.intcode.ADD ) {
 
 				int sum = array[array[i+1]] + array[array[i+2]]; // get the two values
-				writepos = array[i+3]; // get the write pos
+				writepos = Math.Clamp( array[i+3], 0, array.Length - 1 ); // get the write pos
 				Debug( "ADD (" + i.ToString() + "/" + array.Length.ToString() + ") " + "Sum=" + sum.ToString() + " at i=" + writepos.ToString() );
 
 				array[writepos] = sum; // write the value
 				
 			} else if( opcode == vars.intcode.MULT ) {
 				
-				int product = array[array[i+1]] * array[array[i+2]]; // get the two values
-				writepos = array[i+3];
+				int product = array[array[i+1]] * array[array[i+2]]; // get the product
+				writepos = Math.Clamp( array[i+3], 0, array.Length - 1 );
 				Debug( "MULT (" + i.ToString() + "/" + array.Length.ToString() + ") " + "Product=" + product.ToString() + " at i=" + writepos.ToString() );
 
 				array[writepos] = product; // write the value
@@ -51,13 +51,13 @@ namespace Part1 {
 
 		public int[] intcode( int[] input ) {
 			int[] output = input; // make an instanse of the input where we can change stuff
-			Console.WriteLine( "\n----Running Intcode----" );
+			Debug( "\n----Running Intcode----" );
 			for( int i = 0; i < output.Length; i+= NEXT ) {	
 				vars.intcode opcode = getOpcode(input[i]);
 				output = runopcode( output, i, opcode );
 				if( (int)output[i] == 99 ) { break; }
 			}
-			Console.WriteLine( "----Intcode finished----\n" );
+			Debug( "----Intcode finished----\n" );
 			return output;
 		}
 	}

2019/Day2/Part2.cs

@@ -0,0 +1,46 @@
+using System;
+
+namespace Part2 {
+	public class calcInputs {
+		public void bruteforce( int[] input, int find ) {
+			int noun, verb;
+			int[] input_c = input; // keep a version of the original
+			int[] output = new int[input_c.Length];
+
+			bool success = false;
+
+			int min = 0;	// min and max for the input values
+			int max = 99;	//
+
+			Part1.compile compile = new Part1.compile();
+
+			for( int i = 0; i < max + 1; i++ ) {
+				input = input_c; // reset the intcode
+
+				noun = Math.Clamp( i, min, max );
+				verb = Math.Clamp( i, min, max );
+
+				input[1] = noun;
+				input[2] = verb;
+
+				Console.WriteLine( "Checking: {0}, {1} for {2}", noun, verb, find );
+				output = compile.intcode( input );
+
+				Console.WriteLine( input[0] );
+				if( output[0] == find ) {
+					Console.WriteLine( "({0}) Found: {1}, {2}", find, noun, verb );
+					success = true;
+					break;
+				}
+				
+			}
+
+			Console.WriteLine("");
+
+			if( success == false ) {
+				Console.WriteLine( "Nothing found :(" );
+				return;
+			}
+		}
+	}
+}

2019/Day2/Program.cs

@@ -30,6 +30,12 @@ namespace Day2 {
 			Console.WriteLine( "--End of Intcode result--\n" );
 
 			Console.WriteLine( "Part 1 result: " + output[0].ToString() ); // get the pos 0
+
+
+
+			//// Part 2 stuff ////
+			Part2.calcInputs calcInputs = new Part2.calcInputs();
+			calcInputs.bruteforce( intcodes, 9801 );
 		}
 	}
 }

2019/Day2/input.txt

@@ -1 +1 @@
-1,0,0,3,1,1,2,3,1,3,4,3,1,5,0,3,2,1,10,19,1,19,6,23,2,23,13,27,1,27,5,31,2,31,10,35,1,9,35,39,1,39,9,43,2,9,43,47,1,5,47,51,2,13,51,55,1,55,9,59,2,6,59,63,1,63,5,67,1,10,67,71,1,71,10,75,2,75,13,79,2,79,13,83,1,5,83,87,1,87,6,91,2,91,13,95,1,5,95,99,1,99,2,103,1,103,6,0,99,2,14,0,0
+2,0,0,0,99,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

2019/Day2/obj/Debug/netcoreapp2.2/Day2.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-9fe783133b7f321bdac60ee865e123f6adce08e3
+f79d1ed33da9ca6da7e131988eb0964470e8edf6