/*

* Copyright Beijing 58 Information Technology Co.,Ltd.

*

* Licensed to the Apache Software Foundation (ASF) under one

* or more contributor license agreements. See the NOTICE file

* distributed with this work for additional information

* regarding copyright ownership. The ASF licenses this file

* to you 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

*

* Unless required by applicable law or agreed to in writing,

* software distributed under the License is distributed on an

* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

* KIND, either express or implied. See the License for the

* specific language governing permissions and limitations

* under the License.

*/

package learn;

import junit.framework.Assert;

import org.junit.Test;

import java.util.ArrayList;

import java.util.List;

import java.util.Random;

/**

* @author Service Platform Architecture Team (spat@58.com)

*/

public class PokerTest {

Random rdm = new Random(System.currentTimeMillis());

@Test

public void test() {

int count = 0;

for(int i = 1; i < 100 * 100 * 100 * 100; i++) {

count += occasion() ? 1 : 0;

if (i % 1000000 == 0)

System.out.println("i:" + i + ", count: " + count + ", " + (count * 1.0)/i);

}

System.out.println("i:" + 100 * 100 * 100 + ", count: " + count + ", " + (count * 1.0)/(100 * 100 * 100));

}

public boolean occasion() {

List<Integer> origin = new ArrayList<Integer>(54);

for(int i = 1; i <= 54; i++)

origin.add(i);

int[] data = new int[54];

for(int i = 53; i >= 1; i--) {

int index = rdm.nextInt(i);

data[i] = origin.remove(index);

Assert.assertTrue(data[i] > 0);

}

data[0] = origin.remove(0);

Assert.assertTrue(data[0] > 0);

Assert.assertTrue(origin.size() == 0);

int first = -1;

for(int i = 0; i < 51; i++) {

if (first != -1 && first/17 != i/17)

return false;

if (data[i] < 3) {

if (first != -1)

return true;

first = i;

}

}

return false;

}

}