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Update test coverage
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@@ -1,33 +1,11 @@
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//ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem11.java
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//Matthew Ellison
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// Created: 03-03-19
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//Modified: 08-20-22
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//Modified: 06-27-23
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//What is the greatest product of four adjacent numbers in the same direction (up, down, left, right, or diagonally) in the 20×20 grid?
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/*
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08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
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49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
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81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
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52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91
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22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80
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24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50
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32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70
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67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21
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24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72
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21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95
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78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92
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16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57
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86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58
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19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40
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04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66
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88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69
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04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36
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20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16
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20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54
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01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
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*/
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//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
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/*
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Copyright (C) 2022 Matthew Ellison
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Copyright (C) 2023 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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@@ -45,6 +23,10 @@
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package com.mattrixwv.project_euler.problems;
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import java.io.File;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.security.InvalidParameterException;
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import java.util.ArrayList;
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import java.util.List;
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@@ -55,28 +37,10 @@ public class Problem11 extends Problem{
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//Variables
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//Static variables
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//This is the grid of numbers that we will be working with
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private static final Integer[][] grid = {{ 8, 2, 22, 97, 38, 15, 0, 40, 0, 75, 4, 5, 7, 78, 52, 12, 50, 77, 91, 8},
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{49, 49, 99, 40, 17, 81, 18, 57, 60, 87, 17, 40, 98, 43, 69, 48, 4, 56, 62, 0},
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{81, 49, 31, 73, 55, 79, 14, 29, 93, 71, 40, 67, 53, 88, 30, 3, 49, 13, 36, 65},
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{52, 70, 95, 23, 4, 60, 11, 42, 69, 24, 68, 56, 1, 32, 56, 71, 37, 2, 36, 91},
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{22, 31, 16, 71, 51, 67, 63, 89, 41, 92, 36, 54, 22, 40, 40, 28, 66, 33, 13, 80},
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{24, 47, 32, 60, 99, 3, 45, 2, 44, 75, 33, 53, 78, 36, 84, 20, 35, 17, 12, 50},
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{32, 98, 81, 28, 64, 23, 67, 10, 26, 38, 40, 67, 59, 54, 70, 66, 18, 38, 64, 70},
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{67, 26, 20, 68, 2, 62, 12, 20, 95, 63, 94, 39, 63, 8, 40, 91, 66, 49, 94, 21},
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{24, 55, 58, 5, 66, 73, 99, 26, 97, 17, 78, 78, 96, 83, 14, 88, 34, 89, 63, 72},
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{21, 36, 23, 9, 75, 0, 76, 44, 20, 45, 35, 14, 0, 61, 33, 97, 34, 31, 33, 95},
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{78, 17, 53, 28, 22, 75, 31, 67, 15, 94, 3, 80, 4, 62, 16, 14, 9, 53, 56, 92},
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{16, 39, 5, 42, 96, 35, 31, 47, 55, 58, 88, 24, 0, 17, 54, 24, 36, 29, 85, 57},
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{86, 56, 0, 48, 35, 71, 89, 7, 5, 44, 44, 37, 44, 60, 21, 58, 51, 54, 17, 58},
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{19, 80, 81, 68, 5, 94, 47, 69, 28, 73, 92, 13, 86, 52, 17, 77, 4, 89, 55, 40},
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{ 4, 52, 8, 83, 97, 35, 99, 16, 7, 97, 57, 32, 16, 26, 26, 79, 33, 27, 98, 66},
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{88, 36, 68, 87, 57, 62, 20, 72, 3, 46, 33, 67, 46, 55, 12, 32, 63, 93, 53, 69},
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{ 4, 42, 16, 73, 38, 25, 39, 11, 24, 94, 72, 18, 8, 46, 29, 32, 40, 62, 76, 36},
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{20, 69, 36, 41, 72, 30, 23, 88, 34, 62, 99, 69, 82, 67, 59, 85, 74, 4, 36, 16},
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{20, 73, 35, 29, 78, 31, 90, 1, 74, 31, 49, 71, 48, 86, 81, 16, 23, 57, 5, 54},
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{ 1, 70, 54, 71, 83, 51, 54, 69, 16, 92, 33, 48, 61, 43, 52, 1, 89, 19, 67, 48}};
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protected static String FILE_NAME = "files/Problem11Grid.txt";
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protected static ArrayList<List<Integer>> grid;
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//Instance variables
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private ArrayList<Integer> greatestProduct; //Holds the largest product we have found so far
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protected List<Integer> greatestProduct; //Holds the largest product we have found so far
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//Functions
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//Constructor
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@@ -85,6 +49,32 @@ public class Problem11 extends Problem{
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greatestProduct = new ArrayList<>();
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}
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//Operational functions
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//Read numbers from file into grid
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private void readFile(){
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if(grid != null){
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return;
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}
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File file = new File(FILE_NAME);
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if(file.exists()){
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try{
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List<String> lines = Files.readAllLines(file.toPath());
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grid = new ArrayList<>();
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for(String line : lines){
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ArrayList<Integer> row = new ArrayList<>();
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for(String num : line.split(" ")){
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row.add(Integer.parseInt(num));
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}
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grid.add(row);
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}
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}
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catch(IOException error){
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throw new InvalidParameterException("Error reading file", error);
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}
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}
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else{
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throw new InvalidParameterException("Error opening file");
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}
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}
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//Solve the problem
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@Override
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public void solve(){
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@@ -102,13 +92,16 @@ public class Problem11 extends Problem{
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currentProduct.add(0);
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}
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//Read the file into the number
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readFile();
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//Start the timer
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timer.start();
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//Loop through every row and column
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for(int row = 0;row < grid.length;++row){
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for(int col = 0;col < grid[row].length;++col){
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for(int row = 0;row < grid.size();++row){
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for(int col = 0;col < grid.get(row).size();++col){
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//Directional booleans to show whether you can move a certain direction
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boolean left = false;
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boolean right = false;
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@@ -118,7 +111,7 @@ public class Problem11 extends Problem{
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if((col - 3) >= 1){
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left = true;
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}
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if((col + 3) < grid[row].length){
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if((col + 3) < grid.get(row).size()){
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right = true;
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}
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if((row + 3) < 20){
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@@ -155,10 +148,10 @@ public class Problem11 extends Problem{
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//Check to the right of the current location
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private void checkRight(ArrayList<Integer> currentProduct, int row, int col){
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//Fill the product
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currentProduct.set(0, grid[row][col]);
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currentProduct.set(1, grid[row][col + 1]);
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currentProduct.set(2, grid[row][col + 2]);
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currentProduct.set(3, grid[row][col + 3]);
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currentProduct.set(0, grid.get(row).get(col));
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currentProduct.set(1, grid.get(row).get(col + 1));
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currentProduct.set(2, grid.get(row).get(col + 2));
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currentProduct.set(3, grid.get(row).get(col + 3));
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//If the current number's product is greater than the greatest product replace it
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if(ArrayAlgorithms.getProd(currentProduct) > ArrayAlgorithms.getProd(greatestProduct)){
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@@ -171,10 +164,10 @@ public class Problem11 extends Problem{
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//Check below the current location
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private void checkDown(ArrayList<Integer> currentProduct, int row, int col){
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//Fill the product
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currentProduct.set(0, grid[row][col]);
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currentProduct.set(1, grid[row + 1][col]);
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currentProduct.set(2, grid[row + 2][col]);
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currentProduct.set(3, grid[row + 3][col]);
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currentProduct.set(0, grid.get(row).get(col));
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currentProduct.set(1, grid.get(row + 1).get(col));
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currentProduct.set(2, grid.get(row + 2).get(col));
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currentProduct.set(3, grid.get(row + 3).get(col));
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//If the current number's product is greater than the greatest product replace it
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if(ArrayAlgorithms.getProd(currentProduct) > ArrayAlgorithms.getProd(greatestProduct)){
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@@ -187,10 +180,10 @@ public class Problem11 extends Problem{
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//Check the left-down diagonal from the current location
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private void checkLeftDown(ArrayList<Integer> currentProduct, int row, int col){
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//Fill the product
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currentProduct.set(0, grid[row][col]);
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currentProduct.set(1, grid[row + 1][col - 1]);
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currentProduct.set(2, grid[row + 2][col - 2]);
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currentProduct.set(3, grid[row + 3][col - 3]);
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currentProduct.set(0, grid.get(row).get(col));
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currentProduct.set(1, grid.get(row + 1).get(col - 1));
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currentProduct.set(2, grid.get(row + 2).get(col - 2));
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currentProduct.set(3, grid.get(row + 3).get(col - 3));
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//If the current number's product is greater than the greatest product replace it
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if(ArrayAlgorithms.getProd(currentProduct) > ArrayAlgorithms.getProd(greatestProduct)){
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@@ -203,10 +196,10 @@ public class Problem11 extends Problem{
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//Check the right-down diagonal from the current location
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private void checkRightDown(ArrayList<Integer> currentProduct, int row, int col){
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//Fill the product
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currentProduct.set(0, grid[row][col]);
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currentProduct.set(1, grid[row + 1][col + 1]);
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currentProduct.set(2, grid[row + 2][col + 2]);
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currentProduct.set(3, grid[row + 3][col + 3]);
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currentProduct.set(0, grid.get(row).get(col));
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currentProduct.set(1, grid.get(row + 1).get(col + 1));
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currentProduct.set(1, grid.get(row + 2).get(col + 2));
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currentProduct.set(1, grid.get(row + 3).get(col + 3));
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//If the current number's product is greater than the greatest product replace it
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if(ArrayAlgorithms.getProd(currentProduct) > ArrayAlgorithms.getProd(greatestProduct)){
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