jiahaoliuliu

/**
 * Given a matrix of 0 and 1, where 0 represents water and 1 represent land.
 * Two pieces of land are connected if they are touching each other(vertical, horizontal or diagonal)
 * Please write a method that counts the number of islands.
 *
 * Here is an example :
 * 0 (1 1) 0 0 0 [1]
 * 0 (1) 0 0 [1 1] 0
 * 0 (1 1) 0 0 [1] 0
 * 0 0 0 0 0 0 0

jiahaoliuliu

package com.emirates;

import static org.hamcrest.CoreMatchers.hasItem;
import static org.hamcrest.CoreMatchers.hasItems;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;

import io.reactivex.Observable;
import io.reactivex.observers.TestObserver;

jiahaoliuliu

package com.jiahaoliuliu.tools;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class Permutations<T> {

    private List<List<T>> generatePermutations(List<T> seedLists) {
        return generatePermutations(new ArrayList<>(), seedLists);

jiahaoliuliu

package com.jiahaoliuilu.testing.toptal;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Test1 {

	// Testing array
	private static int[] array = {5, 5, 1, 7, 2, 3, 5};

jiahaoliuliu

package com.jiahaoliuliu.sudokuchecker;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;

/**
 * A class to check the if the content of a Sudoku is correct or not. The complexity of the algorithm
 * has been kept to O(N^2), instead of O(N^3) for the cube check.
 * 

jiahaoliuliu

/*
 * Copyright 2012 CodeSlap - Cristian Castiblanco
 * Modified by Jiahao Liu [email protected]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *

jiahaoliuliu

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