Here you can find the source of dist(int i, int j, int width)
public static int dist(int i, int j, int width)
//package com.java2s; /**//from w w w. j av a 2 s . co m * Bot for the 7th programming contest of freiesMagazin. * Copyright (c) 2014 Martin Scharm -- <software@binfalse.de> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static int dist(int i, int j, int width) { int dX = abs(i % width - j % width); int dY = abs(i / width - j / width); return dX + dY; } /** * Absolute value of an int. * * @param a * the int * @return a or -a */ public static final int abs(int a) { return a < 0 ? -a : a; } }