google jam 大赛 PlayCards 源码/另放分:)

可惜的是,topcoder 服务器太烂... 提交了一个小时,一直Time out..愣是没提交上.. 郁闷至极

import java.util.ArrayList;
/**
* @author zez
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class PlayCards {

private int maxCardsNum = 0;
private int tempMaxCardsNum = 0;

private ArrayList runNumListList = new ArrayList(); //所有行数组
private ArrayList setNumListList = new ArrayList(); //所有列数组
private ArrayList allCrossNumList = new ArrayList();// all num list
private ArrayList crossNumList = new ArrayList(); //cross num
private class CrossNum{
public int crossnum = 0; //共享数
public ArrayList setNums = null; //行
public ArrayList runNums = null; //列
public CrossNum(int num){
crossnum = num;
}
}


/*转换为数字 1--40 */
private void covertCards(String[] cards){
int length = cards.length;
String num;
char suit;
int tempNum;
CrossNum tempCrossNum;

for(int i=0 ;i < length; i++){
num = cards[i].substring(0,cards[i].indexOf(" "));
suit = cards[i].charAt(2);
tempNum = Integer.parseInt(num);
/*'S', 'H', 'D', or 'C'.*/
switch (suit){
case 'H':
tempNum = tempNum+10;
break;
case 'D':
tempNum = tempNum+20;
break;
case 'C':
tempNum = tempNum+30;
break;
default:
break;
}
/// System.out.print(tempNum);
tempCrossNum = new CrossNum(tempNum);
allCrossNumList.add(tempCrossNum);
}
/*for(int i=0 ;i < length; i++){
System.out.println(((CrossNum)crossNumList.get(i)).crossnum);
}*/
}
/*获取所有 Set 和 Run*/
private void countSetAndRun(){
int length = allCrossNumList.size();
int j;
ArrayList tempRun;

for(int i=0; i< length-2;){
/*三个连续数*/
if(((CrossNum)allCrossNumList.get(i)).crossnum +1 == ((CrossNum)allCrossNumList.get(i+1)).crossnum && ((CrossNum)allCrossNumList.get(i+1)).crossnum+1 == ((CrossNum)allCrossNumList.get(i+2)).crossnum){
tempRun = new ArrayList();
runNumListList.add(tempRun);
tempRun.add((CrossNum)allCrossNumList.get(i));
tempRun.add((CrossNum)allCrossNumList.get(i+1));
tempRun.add((CrossNum)allCrossNumList.get(i+2));
((CrossNum)allCrossNumList.get(i)).runNums = tempRun;
((CrossNum)allCrossNumList.get(i+1)).runNums = tempRun;
((CrossNum)allCrossNumList.get(i+2)).runNums = tempRun;
/*add to crossnum list*/

j=i+2;
while(j<length-1 && ((CrossNum)allCrossNumList.get(j+1)).crossnum == ((CrossNum)allCrossNumList.get(j)).crossnum+1){
tempRun.add((CrossNum)allCrossNumList.get(j+1));
((CrossNum)allCrossNumList.get(j+1)).runNums = tempRun;
j++;
}
i=j;
}
else{
i++;
}
}
ArrayList[] tempSetArray = new ArrayList[10];
for(int i = 0; i<10; i++){
tempSetArray[i]=new ArrayList();
}

for(int i = 0; i<length; i++){
//System.out.println("((CrossNum)allCrossNumList.get(i)).crossnum "+((CrossNum)allCrossNumList.get(i)).crossnum);

tempSetArray[(((CrossNum)allCrossNumList.get(i)).crossnum-1) %10].add((CrossNum)allCrossNumList.get(i));
}
for(int i = 0; i<10; i++){
if(tempSetArray[i].size()>=3){
setNumListList.add(tempSetArray[i]);
for(int k=0;k<tempSetArray[i].size();k++){
((CrossNum)(tempSetArray[i].get(k))).setNums = tempSetArray[i];
}
}
}
}
/*判断数组中是否有这个数num
private boolean isInArray(ArrayList arry,int num){
int length = arry.size();
for(int i=0 ;i<length; i++){
if(((Integer)arry.get(i)).intValue() == num){
return true;
}
}
return false;
}
*/
private void getCrossNums(){
int length = allCrossNumList.size();
for(int i=0;i<length;i++){
if(null != ((CrossNum)(allCrossNumList.get(i))).setNums && null != ((CrossNum)(allCrossNumList.get(i))).runNums){
crossNumList.add(allCrossNumList.get(i));
}
}
}

private void countMaxCards(){
for(int i=0;i<runNumListList.size()&& ((ArrayList)runNumListList.get(i)).size()>=3;i++){
tempMaxCardsNum+= ((ArrayList)runNumListList.get(i)).size();
}
for(int j=0;j<setNumListList.size()&& ((ArrayList)setNumListList.get(j)).size()>=3;j++){
tempMaxCardsNum+= ((ArrayList)setNumListList.get(j)).size();
}

if(tempMaxCardsNum> maxCardsNum)
{
maxCardsNum = tempMaxCardsNum;
}
tempMaxCardsNum=0;
}
private void countMaxCards(int i){
CrossNum tempCrossNum;
tempCrossNum = (CrossNum)crossNumList.get(i);
if(i==0){
(tempCrossNum).setNums.remove(tempCrossNum);
countMaxCards();
(tempCrossNum).runNums.remove(tempCrossNum);
tempCrossNum.setNums.add(tempCrossNum);
countMaxCards();

return;
}else{
(tempCrossNum).setNums.remove(tempCrossNum);
countMaxCards(i-1);
(tempCrossNum).runNums.remove(tempCrossNum);
tempCrossNum.setNums.add(tempCrossNum);
countMaxCards(i-1);
}

}
/*cards {"1 S", "2 S", "3 S"}*/
public int maxCards(String[] cards){
if(cards.length < 3)
{
return 0;
}

covertCards(cards);

countSetAndRun();

getCrossNums();
maxCardsNum = 0;
if(crossNumList.size()>0){
countMaxCards(crossNumList.size()-1);
}
else
{
countMaxCards();
}
return maxCardsNum;
}
public static void main(String[] args) {

PlayCards pc = new PlayCards();
String[] cards ={"1 S", "2 S", "10 S", "5 S", "8 S",
"3 H", "9 H", "6 H", "5 H", "4 H",
"10 D", "5 D", "7 D", "4 D", "1 D",
"2 C", "4 C", "5 C", "6 C", "7 C"};

//String[] cards={"1 S", "2 S"};
pc.maxCards(cards);
System.out.println("maxCardsNum "+ pc.maxCardsNum);
}
}