注意：这个特大号的最山上的挑战已经完成。这意味着，已将C5H8NNaO4的绿色对号标记为“观察员”的条目，该标志不会被移至任何新答案。

您可能仍会提交新的参赛作品，但是由于我不再积极检查新的参赛作品，因此新比赛的运行​​可能会有所延迟。

介绍

在此挑战中，您正在玩​​名为“终极武士对决终极版特别版2.0 X Alpha Omega Turbo”（或简称为终极武士对决）的街机游戏。你的对手？除了Programming Puzzles＆Code Golf的其他成员，别无其他！

正如您可能会从PPCG街机游戏中期望的那样，您不会直接玩Ultimate Samurai Showdown，而是编写了一个可以为您玩游戏的程序。该程序将与其他用户一对一决斗提交的程序作斗争。最熟练的程序将被冠以PPCG的终极武士，并获得传奇的绿色标记。

游戏说明

本节描述了游戏背后的机制。

胜利条件

一场比赛由两个互相对峙的武士组成。每个武士每场比赛都会获得20 点生命和1 点荣誉。如果他的对手死了并且他还活着，那么武士就会获胜。武士可以通过两种方法死亡：

1. 如果武士的生命值降低到0，他会死。
2. 如果武士将自己的荣誉降低到 0 以下，他将因在对决中不诚实的举止而被诸神击倒。

被神击倒比将生命值降低到0更高，因此在一个武士的生命值为0，而另一个武士的荣誉为-1的情况下，拥有0生命值的武士将获胜。在两个武士都获得-1荣誉的情况下，他们俩都被众神击倒，比赛平局。

一场比赛由最多500 圈。如果所有500转都过去了，而且比赛尚未确定（两个武士都没有死），众神会变得无聊，击倒两个武士，从而导致平局。

动作

在每个回合中，武士必须完全执行以下操作之一：

W

武士应等待，不采取任何行动。这使他看起来很酷，但无助于击败对手。这也是默认操作。

B

武士应以光荣的方式向对手鞠躬。这使众神满意，因此武士将获得1点荣誉。荣誉是你的武士的成功是至关重要的，因为荣誉基本上是“资源”为这场比赛-除了所有的移动B，并W能减少荣誉。另外，如果武士获得7点或以上的荣誉，他将被允许使用众神之剑。其含义如下所述。
但是，如果对手决定用剑击打，向对手鞠躬会使您保持打开状态，因此在选择鞠躬时要当心。

G

武士应进入防御位置，并防止剑击。此举将成功地阻止所有的剑击，即使是用众神之剑制造的剑击。
但是，众神对防御过度的武士不以为然，因此，如果此武士在前一回合中的行动也保持警惕，则此举将消耗1点荣誉。否则它不会消耗荣誉。

I

武士将试图从剑鞘中快速抽出剑来打击对手。如果武士获得7点或以上的荣誉，他将使用众神之剑而不是普通的剑。此举消耗1点荣誉。
快速平局是一种快速打击，可以击败较慢的开销攻击，但是会招架招架失败。如果打击成功连接，将对众神之剑造成1点伤害或2点伤害。

P

武士将尝试阻止任何来袭，然后发动自己的攻击。如果武士获得7点或以上的荣誉，他将使用众神之剑而不是普通的剑。此举消耗1点荣誉。
招架是对付快速打击的良好策略，但缓慢的高架攻击将使其无法承受。如果打击成功连接，将对众神之剑造成1点伤害或2点伤害。

O

武士将尝试以较慢的开销攻击来打击他的对手。如果武士拥有7点或以上的荣誉，他将使用众神之剑而不是普通的剑。此举消耗1点荣誉。
高架罢工可以压制招架，但会因快速罢工而损失。如果打击成功连接，将对众神之剑造成1点伤害或2点伤害。

众神之剑

荣誉达到7级或以上的武士可以使用众神之剑。如果他的荣誉降低到7以下，使用万神之剑的能力将被取消。的神的剑造成2损伤而不是1。

在众神之剑不允许罢工击败剑击，它通常不会失败。例如，众神之剑的招架仍然将输给普通的空中打击，众神之剑的快速抽牌不会压倒普通的快速抽牌。确实，所谓的众神之剑实际上并没有那么强大-也许这是众神扮演的宇宙笑话...

互动表

下面的堆栈摘录包含一个表，该表显式列出了两个武士可以采取的不同动作组合的所有可能结果。要查看它，请单击“显示代码片段”，然后单击“运行代码片段”。

td,
th {
  border: 1px solid #ccc;
  text-align: center;
  font-family: sans-serif;
}

<table>
  <tr>
    <th></th>
    <th>W (Wait)</th>
    <th>B (Bow)</th>
    <th>G (Guard)</th>
    <th>I (Quick Draw)</th>
    <th>P (Parry)</th>
    <th>O (Overhead Strike)</th>
  </tr>
  <tr>
    <td>W (Wait)</td>
    <td>Nothing occurs.</td>
    <td>The player that bowed gains +1 Honour.</td>
    <td>If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
  </tr>
  <tr>
    <td>B (Bow)</td>
    <td>The player that bowed gains +1 Honour.</td>
    <td>Both players gain +1 Honour.</td>
    <td>The player that bowed gains +1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
  </tr>
  <tr>
    <td>G (Guard)</td>
    <td>If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>If a guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour. </td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
  </tr>
  <tr>
    <td>I (Quick Draw)</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>Both players lose 1 Honour. </td>
    <td>Both players lose 1 Honour. The player that quick drawed takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
    <td>Both players lose 1 Honour. The player that used an overhead strike takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
  </tr>
  <tr>
    <td>P (Parry)</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>Both players lose 1 Honour. The player that quick drawed takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
    <td>Both players lose 1 Honour. </td>
    <td>Both players lose 1 Honour. The player that parried takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
  </tr>
  <tr>
    <td>O (Overhead Strike)</td>
    <td>The player that waited takes 1 damage (or 2 if the Sword of the Gods was used.) The player that struck loses 1 Honour.</td>
    <td>The player that bowed gains +1 Honour and takes 1 damage (or 2 if the Sword of the Gods was used). The player that struck loses 1 Honour.</td>
    <td>The player that struck loses 1 Honour. If the guarding player guarded the previous turn, that player loses 1 Honour.</td>
    <td>Both players lose 1 Honour. The player that used an overhead strike takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
    <td>Both players lose 1 Honour. The player that parried takes 1 damage (or 2 if the Sword of the Gods was used.).</td>
    <td>Both players lose 1 Honour. </td>
  </tr>
</table>

程序通讯

为了促进比赛的进行，编写了一个控制器程序来扮演“神”的角色-记录荣誉和健康记录，并相应地打击武士。本节介绍您的程序如何与控制器程序进行通信。

输入说明

控制器程序将像下面这样从命令行调用您的程序：

<command> <history> <enemy_history> <your_health> <enemy_health> <your_honour> <enemy_honour>

哪里：

• <command>是运行程序所需的命令。例如，如果您的程序在文件中super_sentai.pl，则命令可能为perl super_sentai.pl。

• <history>是您所做动作的历史。例如，WWBP这意味着您等了两次，鞠了一躬，又招架了一次。

• <enemy_history>是您的敌人做出行动的历史。例如，BBBI这意味着您的敌人鞠躬了三下，并进行了一次快速抽签。

• <your_health> 是你目前的健康状况。

• <enemy_health> 是敌人目前的健康状况。
• <your_honour> 是您目前的荣誉。
• <enemy_honour> 是敌人目前的荣誉。

首先，historyand enemy_history将为空，因此将仅使用最后四个参数来调用您的程序，如下所示：

<command> <your_health> <enemy_health> <your_honour> <enemy_honour>

请为此做好准备！

精明的读者可能会注意到，提供两个武士的荣誉和健康的四个论点在某种程度上是多余的；由于这是一个完美的信息游戏，因此只能使用历史来确定武士的荣誉和健康状况。

提供这些值是为了方便起见，因此您不必解析历史参数。这对于实施简单策略很有用，例如在Honor为0时不发起攻击。

输出说明

要选择一个动作，你的程序中的一个输出W，B，G，I，P，或者O到标准输出，这取决于你想什么动作。如果您的程序在1000毫秒内未输出任何内容，则它将终止，并且您的程序将被视为输出W。

如果您的程序输出多个字母，则只会考虑第一个字母-因此输出Parry将与output相同P。

如果程序的第一个字母的输出不是上面列出的任何选项，则默认为W。

投稿格式

提交程序作为对此帖子的答案。您可以提交多个程序。如果要提交多个简单程序，建议将它们作为一个答案提交。如果要提交多个复杂程序，建议将它们作为单独的答案提交。一旦成功将您的程序添加到锦标赛中，我将使用您的输入（以下链接）对git存储库进行提交。

如果我遇到阻碍您的程序加入比赛的问题，我将在您的参赛作品中留下评论以指出问题。

请在您的提交中包括以下内容：

1. 程序的可读名称，用于记分板。这里允许有空格；逗号和Unicode字符不是。
2. 您的程序所使用的语言。请避免使用奇怪的，难以访问的语言（例如TinyMUSH）进行编写。
3. 程序的简短摘要。这可以是有关程序工作方式的描述，也可以是有关程序的一些风味文字（如果您想全部保密），或者两者都有。
4. 运行程序所需的命令。例如，如果您使用Java编写提交example.java，则将提供编译说明，javac example.java然后提供运行说明java example。
5. 程序的源代码。

为了协助提交，我提供了一个提交模板，可以在此处找到。该模板使提交看起来更好。我强烈建议您使用它。

我还提供了两个示例条目。尽管示例条目将参加循环赛，但它们的主要目的是阐明锦标赛的提交和输入/输出格式，而不是认真对待Ultimate Samurai的头衔。

比赛结构

本节描述了参与者之间的锦标赛将如何运行。

控制程序

该控制程序是用Python 2编写的，可以在Ultimate Samurai Showdown Github存储库中找到。如果您想自己运行它，该链接的README.md文件中包含有关如何运行它的说明。但是，只有在我的计算机上运行的比赛才是正式比赛，以避免硬件差异影响比赛结果。

该控制程序将在运行Arch Linux的便携式计算机上运行。它具有Intel Core i7处理器和8GB RAM。我将尽力使所有条目都在计算机上运行，​​但是如果您避免使用无法自由访问的语言（这是不花钱的话），我将不胜感激。

计分系统

计分系统是循环赛。每个程序将与其他每个程序进行八场比赛。获胜会给程序分配1分，输给没有积分，和平局0.5分。得分最高的程序将赢得比赛。如果有平局，我将与前两个程序进行对决以确定获胜者。

如果进入的人数过多，则每个节目将要播放的其他节目的次数可以从8个减少。如果发生这种情况，我将在此处添加注释。

随着新提交内容的发布，我将多次运行循环，但是只有最新的循环才会生效。

取消资格

您的程序有可能被取消比赛资格。在下列情况下可能会被取消比赛资格：

• 您的程序无法编译或运行；
• 您的程序是另一个程序的战略副本（也就是说，它实施的策略与另一个程序完全相同）；
• 您的程序试图通过修改控制器代码，其他程序的代码等来破坏其他程序；
• 您的程序尝试利用控制器代码中的错误。与其利用漏洞，不如直接在git仓库中打开问题，在此处发表评论，或在聊天中ping我。

过去的结果

Wiki页面上提供了所有锦标赛的详细结果。

最近的比赛在2015-07-17 07:20结束。以下是结果摘要：

The Observer: 209.0
Coward: 203.0
Monk: 173.0
Elephant Warrior: 157.0
Iniqy: 157.0
Agent 38: 144.0
Ninja: 138.0
Meiyo Senshi: 138.0
Kakashi: 136.0
Yoshimitsu: 131.0
Hermurai: 121.0
Warrior Princess: 120.0
Gargoyle: 119.5
The Honourable: 119.0
Hebi: 118.5
Predictor: 116.0
Whack-a-mole: 107.0
The Fool: 106.0
The Prophet: 105.0
Copy-san: 97.0
YAGMCSE: 80.0
The Waiter: 66.0
Swordsman: 43.0
Spork Holder: 32.5
Blessed Samurai: 27.5
Attacker: 27.0
The Terminator: 17.0
Master Yi: 16.0

和尚^_（Java）

和尚重视荣誉并称赞众神的祝福。经过耐心的训练，他平静地向天上祈祷，直到他感到自己被上帝宠爱。

享受他的生活，他试图保护它。当他的健康状况以一定速度下降时，他会尽力为自己辩护。

希望得到众神的支持，他随机将射精^[1]送到天堂，否则他会尽力而为。

如果他的对手在战斗中疲惫不堪，他会以剩余的荣誉完成他的战斗，使他快速而无痛地死去。

编译/运行

javac Monk.java
java Monk

public class Monk {
    public static void main(String[] args){
        char  r = 'B';
        double  s = Math.random ();
        int n = Math.max (args [0].length ()- 8, 1);
        int p = args.length > 4 ? Integer.parseInt (args [4]):0;
        int l = Integer.parseInt (args [3]);
        int m = Integer.parseInt (args [2]);
        double d = 1 + (20 - m) / n;
        double e = 1 + (20 - l) / n;

        if (((p>8&&s<.7)||l<11||m<2)&&p>0) {
                r=(s<(.14)||d>=2||e/d<.618)?'G':"OPI".charAt((int)(Math.random()*3));
        }

        System.out.print (r);
    }
}

忍者^（Java）

忍者速度很快，攻击速度甚至更快。他在受到友好的正式问候后立即发动进攻，并在每次进攻前后鞠躬进一步使敌人困惑。

受祝福的忍者会保持这种行为，等待他的对手做出自己的第一步。利用这个机会，他发动了一系列爆炸，受到忍者女神的祝福，直到他从战斗中疲惫不堪。利用剩余的荣誉，他躲在下面的树叶下，保护自己免受下一次袭击。他跳出身子，从后面攻击敌人，再次被躲藏起来。

如果他受到致命伤，他会全力以赴与对手同住-当然，要保持最小的荣誉感。

javac Ninja.java
java Ninja

public class Ninja {
    public static void main(String[] args){
        char  r = 'B';
        int n = args [0].length ();
        int p = args.length > 4 ? Integer.parseInt (args [4]):0;
        int m = Integer.parseInt (args [2]);
        int a = n % 3;
        if (p>7) {
           if (m>17) {
                r = "BBI".charAt (a);
           } else if (m>13) {
                r = "BII".charAt (a); 
           } else {
               r  = "GIG".charAt (a);
           }

        } else if (p>0) {
           if (m > 10) {
                    r = "BBI".charAt (a);
           } else {
                r="IGI".charAt (n%2);
           }
        }
        System.out.print (r);
    }
}

卡卡西，山寨忍者^（Java）

卡卡西通过在对手的最后两个动作之间随机选择来复制对手的动作。如果对手等待，他会鞠躬-他也会保持自己的荣誉。

javac Kakashi.java
java Kakashi

public class Kakashi {
    public static void main(String[] args){
        char  r;
        String h = args [1];
        if (h=="W" || Integer.parseInt ( args.length > 4?args [4]:"0") < 1){
                 r = 'B';
        } else if (Math.random ()<.1) {
            r = 'I';
        } else {
            r  = h.charAt ((int) (h.length()==1?0: h.length()-Math.random ()*2));
        }

        System.out.print (r);
    }
}

_{我希望Kakashi能够拥有共享软件。。我想到了阅读cast.txt。模拟历史上的每一轮对阵那里的每个对手。通过将模拟的敌人历史记录与真实的敌人历史记录进行比较，尝试找出与哪个对手作战。然后使用该信息预测对手的下一步行动，并从预定义的列表中选择最佳反击。但是我觉得这可能要花点时间，因为我目前互联网速度非常慢，而且几乎没有Java技能}

观察者^{（node.js）}

观察者鞠躬，然后尝试从过去的5个动作中预测对手的下一个动作，并为预测的动作选择最佳对手。

编辑：感谢@apsillers共享了node.js模板！

node observer.js

var argv = process.argv;
var history = argv.length>6?argv[2]:"";
var enemyHistory = argv.length>6?argv[3]:"";
var offset = 8 - argv.length;
var my = { health:+argv[4-offset], honor:+argv[6-offset], history:history };
var enemy = { health:+argv[5-offset], honor:+argv[7-offset], history:enemyHistory };
my.godSword = my.honor >= 7;
enemy.godSword = enemy.honor >= 7;
function decide() {
    process.stdout.write(arguments[Math.floor(arguments.length*Math.random())]);
    process.exit();
}

var m = {
    m:{},
    l:function (a,b) {
        if (!this.m[a]) {
           this.m [a] = [];
        }
        this.m[a].push (b);
    },
    p:function (a) {
       for (var k=0;k<a.length;k++)
       for (var j=1;j<a.length;j++)
       for (var i=-1+k; i<a.length-j; i++)this.l (a.slice (i,i+j),a[i+j]);
    },
    a:function (a) {
      if (!this.m[a])return;
      return this.m[a][0|Math.random () * this.m[a].length-1]
    }
}
var g={
   B:"IPO",
   G:"B",
   I:"PG",
   O:"IG",
   P:"OG",
   W:"I"
}
var c,i=0;
m.p(enemy.history);
while (!c && i++<enemy.history.length) {
   c=m.a (enemy.history.slice (i));
}
decide.apply  (0,my.honor < 7?["B"]:g[c].split (''))

编辑：我在观察者中有一个重大缺陷，实际上我不知道昨天晚上我在想什么。看来他只看着敌人的过去两个动作。他像这样表现出色。

现在询问他的记忆是他已经见过的敌人历史中最长的（结尾）部分。它包含一个数组，其中包含跟随移动历史记录的所有移动。一个是随机选择的。因此，如果更频繁地采取一种行动，那么也更有可能采取这种行动。有点像马尔科夫链。

观察者现在也要守卫。

_{[1]：TIL：射精具有宗教意义}

Meiyo Senshi ^_（Java）

从美岛（Haijima）出发的梅灵（Meiyo）鲜为人知。他们通常不参加体育比赛，但派遣一名勇士来评估他们的竞争对手。

不过，他们是光荣的一堆，因此您可以放心，他将在短时间内使众神知道他的存在。一旦他看到了足够多的敌人可以举报，他将利用收到的祝福打倒他的对手。

要编译运行，这是标准的Java方法：

> javac MeiyoSenshi.java
> java MeiyoSenshi

public class MeiyoSenshi {
    public static void main(String[] args){
        System.out.print(
                Integer.valueOf(args[args.length<5?0:2])>12 ||
                Integer.valueOf(args[args.length<5?2:4])<1  ?
                "B":
                "IPO".charAt((int)(Math.random()*3))
        );
    }
}

猪肉持有人^{_{（红宝石）}}

Spork Holder在第一回合上鞠躬，然后随机行动。它是两个示例条目之一。

命令： ruby spork-holder.rb

if ARGV.length == 4
    print "B"
else
    print ["W", "B", "G", "I", "P", "O"].sample
end

服务员^{_（重击）}

服务员只在每转弯时等待。它是两个示例条目之一。

命令： echo W

不需要任何源代码。

胆小鬼_{^{（Node.js）}}

我是一个胆小鬼/我敢呼吸的奇迹
超能力/夏天的微风吹拂

• 支票BXBXBX/ BBB模式低头（或打你）当你鞠躬。
• 警惕时检查GXGXGX模式是否弯曲。
• 如果他随机的勇敢投掷超过了该轮的恐惧门槛，他会尝试击中。
  • 拥有众神之剑使他更加勇敢。
  • 拥有众神之剑的对手会让他更加恐惧。
  • 领先至少5点或更多生命值的对手也会使他有些害怕。
• 否则，他轮流守护和鞠躬。

如果您想编写一个Node.js提交，请随时使用我的样板代码；包括该decide功能在内的所有功能都是完全通用且免费的。

node coward.js

var argv = process.argv;
var history = argv.length>6?argv[2]:"";
var enemyHistory = argv.length>6?argv[3]:"";
var offset = 8 - argv.length;
var my = { health:+argv[4-offset], honor:+argv[6-offset], history:history };
var enemy = { health:+argv[5-offset], honor:+argv[7-offset], history:enemyHistory };
my.godSword = my.honor >= 7;
enemy.godSword = enemy.honor >= 7;
function decide() {
    process.stdout.write(arguments[Math.floor(arguments.length*Math.random())]);
    process.exit();
}

var enemyGuards = !!enemy.history.match(/G.G.G.$/);
var enemyBows = !!enemy.history.match(/(B.B.B.$)|(BBB$)/);

// open with a bow
if(!my.history) { decide("B"); }

// enemy will likely bow? Hit them with your super sword! (or bow)
if((!enemy.honor || enemyBows)) {
    if(my.godSword) { decide("P","I","O"); }
    else { decide("B"); }
}

// no point in hitting them if they're going to guard
if(enemyGuards) { decide("B"); }

// calculate bravery level
var braveryLevel = 0.3;
braveryLevel += (my.godSword * 0.2) - (enemy.godSword * 0.2);
braveryLevel -= (enemy.health - my.health > 5) * 0.1;

// if we're feeling brave, hit them
if(Math.random() < braveryLevel && my.honor) { decide("P","I","O"); }

// if we didn't just guard, and we're not feeling brave, cower in fear
if(!my.history.match(/G$/)) {
    decide("G");
}

// if we did just guard, and we're feeling cowardly,
//   if we don't have sword of the gods, bow
//   otherwise, do anything except guard
if(!my.godSword) {
    decide("B");
} else {
    decide("B","P","I","O");
}

hack鼠^_（R）

当敌人可能低头时发动攻击，否则将进行守卫。

args <- commandArgs(TRUE)
L <- length(args)
my_health <- as.integer(args[L-3])
enemy_health <- as.integer(args[L-2])
my_honour <- as.integer(args[L-1])
enemy_honour <- as.integer(args[L])
if(L>4){enemy_history <- args[L-4]}else{enemy_history <- ""}
if(my_honour<1){
    out <- "B"
}else if (enemy_honour<=1 | grepl("BB$",enemy_history)){
    out <- sample(c("I","O"),1)
}else{
    out <- "G"
}
cat(out)

使用运行Rscript Whack-a-mole.R。

大象战士^_（Java）

大象战士来自更古老，更自然的时代。他看了很多东西，并记住了一切。他在检查对手时向众神求情，然后将他们带入自己的内心，便将他们分开。

编译：javac ElephantWarrior.java
命令：java ElephantWarrior

import java.util.LinkedList;

//Elephants never forget
class ElephantWarrior
{


  static LinkedList<Choice> analysis = new LinkedList<Choice>();

  public static void main(String[] args){
      if(args.length < 6){ respond("B");}   
      String myhis = args[0];
      String enHis = args[1];
      int health = Integer.parseInt(args[2]);
      int enHealth = Integer.parseInt(args[3]);
      int honour = Integer.parseInt(args[4]);
      int enHonour = Integer.parseInt(args[5]);

        //Bow a few times until I know how he operates
        if(enHis.length() <= 5){
            respond("B");
        }

        //Special cases
        //If I'm at 0 honor, better bow
        else if(honour <= 0){
            respond("B");

        }
        else{
          analyze(enHis);

          //Narrow it down to applicable choices
          char hisLast = enHis.toCharArray()[enHis.toCharArray().length - 1];
          LinkedList<Choice> hisOptions = new LinkedList<Choice>();
          for(Choice c: analysis){
              if(c.pattern.toCharArray()[0] == hisLast){
                  hisOptions.add(c);
              }
          }

           //Default to assuming they bow
          char hisNext = 'B';
          int mostLikely = 0;

          //What will they do next?
          for(Choice c : hisOptions){
              if(c != null && c.probability > mostLikely){
                  //System.out.println("Option = " + c.pattern);
                  //System.out.println("Prob = " + c.probability);
                  mostLikely = c.probability;
                  hisNext = c.pattern.toCharArray()[1]; }
          }

          //Now go through potential case
          switch(hisNext){
              case 'W':
                  respond("I");
                  break;
              case 'B': 
                  respond("O");
                  break;
              case 'G':
                  respond("B");
                  break;
              case 'I':
                  if(enHonour  > 0){
                      respond("P");
                  }
                  else{
                      respond("B");
                  }
                  break;
              case 'P':
                  respond("O");
                  break;
              case 'O':
                  respond("I");
                  break;
              default:
                  respond("G");
          }
        }
    }





      static void analyze(String his){

        //Keep track of his previous moves
        char[] shortString = his.substring(1,his.length() - 1).toCharArray();
        char[] longString = his.toCharArray();
        for( int i = 0; i < shortString.length; i++) {
          String pattern = "" + longString[i] + shortString[i];
          boolean exists = false;
          for(Choice c : analysis){
              if(c.pattern.equals(pattern)){
                  exists = true;
                  c.probability++;
              }
          }
          if(!exists){
              analysis.add(new Choice(pattern, 1));
          }
        }
      }

      private static void respond(String s){
            System.out.println(s);
            System.exit(0);
        }

    }

class Choice{
        String pattern;
        int probability;

       Choice(String p, int i){
            pattern = p;
            probability = i;
       }
}

战士公主^{_{（朱莉娅）}}

这是我参加的第一个山丘之王挑战赛。让我们看看如何进行。

勇士公主优先考虑攻击和荣誉，并在需要时采取自我保护措施。她很渴望，从不等待。为了保持敏捷，她也不使用开销攻击。

另存为warrior-princess.jl并从命令行运行，如下所示：

julia warrior-princess.jl <arguments>

如果您没有Julia，可以在此处下载。为了避免出现问题，建议使用最新的稳定版本（即非开发版本）。

type Samurai
    history::String
    health::Int
    honor::Int
end

A = length(ARGS) < 5 ? ["", "", ARGS] : ARGS

me = Samurai(A[1], int(A[3]), int(A[5]))
opponent = Samurai(A[2], int(A[4]), int(A[6]))


if length(me.history) == 0

    # Always begin the match with an honorable bow
    action = "B"

elseif (!ismatch(r"[OIP]", opponent.history) && me.history[end] != 'G') ||
       (me.health < 2 && me.honor > 0)

    # Guard if the enemy has not yet attacked and I did not previously
    # guard, or if my health is low and my honor is sufficient
    action = "G"

elseif me.honor < 2

    # Bow if I'm low on honor
    action = "B"

elseif opponent.honor >= 7 && opponent.history[end] ∈ ['B', 'W']

    # Assume the enemy will attack with the Sword of the Gods if they
    # most recently bowed or waited
    action = "I"

else
    action = "P"
end

println(action)

石像鬼^_（Java）

尝试在不消耗荣誉的情况下使用防御性举动。

由于它是一个Java条目：

> javac Gargoyle.java
> java Gargoyle

public class Gargoyle { 
    public static void main(String args[]) {
        if (args.length < 5 || Integer.valueOf(args[4]) > 0) {
            System.out.println("IPO".charAt((int)(Math.random()*3)));
        } else if (args[0].charAt(args[0].length()-1) != 'G') {
            System.out.println('G');
        } else {
            System.out.println('B');
        }
    }
}

剑客^{_{（C / Java）}}

剑士在第一回合和任何因荣誉而低落的时候鞠躬。然后，他检查对手在上一回合中是否没有弯腰，防守或等待过。如果对手没有，那么他很有可能会在当前回合中进行其中之一，因此剑客会随机攻击对手。如果这不是真的，那么如果他没有捍卫上一回合，他就捍卫。如果有的话，他会鞠躬获得荣誉。

C版：

#include <time.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

void print_and_exit(char* str)
{
    puts(str);
    exit(0);
}

int main(int argc, char** argv){

    srand(time(NULL));
    char* attack_moves[]={"I", "P", "O"};
    int random_num = rand() % 3;

    if(argc == 5 || atoi(argv[5]) == 0)
        print_and_exit("B");
    else if(argv[2][strlen(argv[2])-1] != 'B' && argv[2][strlen(argv[2])-1] != 'G' && argv[2][strlen(argv[2])-1] != 'W')
        print_and_exit(attack_moves[random_num]);
    else if(argv[1][strlen(argv[1])-1] != 'G')
        print_and_exit("G");

     print_and_exit("B");
}

安装GCC（编译器）并将代码保存到名为“ Swordsman.c ” 的文件中以进行编译：

gcc Swordsman.c -o Swordsman

将创建名为“ Swordsman ”的可执行文件。运行使用

Swordsman

Java版本：

public class Swordsman {

    public static void print_and_exit(String str)
    {
        System.out.println(str);
        System.exit(0);
    }
    public static void main(String[] argv) {

        String attack_moves[]={"I", "P", "O"};
        int random_num = (int)(Math.random()*3);

        if(argv.length == 4 || Integer.valueOf(argv[5]) == 0)
            print_and_exit("B");
        else if(argv[2].charAt(argv[2].length()-1) != 'B' && argv[2].charAt(argv[2].length()-1) != 'G' && argv[2].charAt(argv[2].length()-1) != 'W')
            print_and_exit(attack_moves[random_num]);
        else if(argv[1].charAt(argv[1].length()-1) != 'G')
            print_and_exit("G");

         print_and_exit("B");
    }

}

安装javac（编译器）并将代码保存到名为“ Swordsman.java ” 的文件中以进行编译：

javac Swordsman.java

将创建名为“ Swordsman.class ”的类文件。运行使用

java Swordsman

攻击者^_（Java）

攻击者除了要让对手死亡之外，什么都不关心。他随机击中其中一个攻击动作，如果荣誉不佳，则鞠躬。

public class Attacker {

    static int position = -1;

    public static void print_and_exit(String str)
    {
        System.out.println(str);
        System.exit(0);
    }
    public static void main(String[] argv) {

        String attack_moves[]={"I", "P", "O"};
        position = (position + 1) % 3;

        if(argv.length != 5 && Integer.valueOf(argv[5]) == 0)
            print_and_exit("B");
        else 
            print_and_exit(attack_moves[position]);
    }

}

安装javac（编译器）并将代码保存到名为“ Attacker.java ” 的文件中以进行编译：

javac Attacker.java

将创建名为“ Attacker.class ”的类文件。运行使用

java Attacker

预测器^{_{（C / Java）}}

预测器预测敌人的移动。在第一回合中，它使用随机移动。如果他的荣誉低，则鞠躬；如果敌人的荣誉低或在前一回合中鞠躬，则开弓。如果预测变量未守卫前一回合，则在当前回合中守卫。否则，与敌人在前一回合中所做的动作相同，但前提是'W'在这种情况下，预测者不鞠躬。

C版：

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>

void print_and_exit(char* str)
{
    puts(str);
    exit(0);
}

int main(int argc, char** argv){

    srand(time(NULL));
    int random = rand() % 5;
    char* moves[] = {"B", "G", "I", "P", "O"};

    if(argc == 5)
        print_and_exit(moves[random]);

    if(atoi(argv[5]) <= 0)
        print_and_exit(moves[0]);
    if(atoi(argv[6]) <= 0)
        print_and_exit(moves[4]);
    if(argv[2][strlen(argv[2])-1] == 'G')
        print_and_exit(moves[4]);
    if(argv[1][strlen(argv[1])-1] != 'G')
        print_and_exit(moves[1]);

    if(argv[2][strlen(argv[2])-1] != 'W'){
        char buf[2]={0};
        *buf = argv[2][strlen(argv[2])-1];
        print_and_exit(buf);
    }

    print_and_exit(moves[0]);

}

安装GCC（编译器）并将代码保存到名为“ Predictor.c ” 的文件中以进行编译：

gcc Predictor.c -o Predictor

将创建名为“ Predictor ”的可执行文件。运行使用

Predictor

Java版本：

public class Predicator{

    public static void print_and_exit(String str)
    {
        System.out.println(str);
        System.exit(0);
    }

    public static void main(String[] argv){

        int random = (int)(Math.random() * 5);
        String moves[] = {"B", "G", "I", "P", "O"};

        if(argv.length == 4)
            print_and_exit(moves[random]);
        else if(Integer.valueOf(argv[5]) <= 0)
            print_and_exit(moves[0]);
        else if(Integer.valueOf(argv[6]) <= 0)
            print_and_exit(moves[4]);
        else if(argv[2].charAt((argv[2].length())-1) == 'G')
            print_and_exit(moves[4]);
        else if(argv[1].charAt((argv[1].length())-1) != 'G')
            print_and_exit(moves[1]);
        else if(argv[2].charAt((argv[1].length())-1) != 'W'){
                    print_and_exit(""+argv[2].charAt((argv[2].length())-1));
        }
        else
            print_and_exit(moves[0]);
    }
}

安装javac（编译器）并将代码保存到名为“ Predicator.java ” 的文件中以进行编译：

javac Predicator.java

将创建名为“ Predicator.class ”的类文件。运行使用

java Predicator

易大师（Python）

刺客大师在早期的游戏中赢得了很多青睐，直到他立于不败之地为止。尝试在他们最不期望的时候发动进攻。

import sys, random

class MasterYi(object):
    def __init__(self):
        self.attack = lambda: random.choice(['I','P','O'])
        self.bow   = "B"
        self.guard = "G"
        self.wait  = "W"
        if len(sys.argv)>6:
            self.hist = sys.argv[1]; self.ohist = sys.argv[2]
            self.hp   = sys.argv[3]; self.ohp   = sys.argv[4]
            self.hon  = sys.argv[5]; self.ohon  = sys.argv[6]
        else:
            self.hist = [];          self.ohist = []
            self.hp   = sys.argv[1]; self.ohp   = sys.argv[2]
            self.hon  = sys.argv[3]; self.ohon  = sys.argv[4]
        self.last  = self.hist  and self.hist[-1]  or "W"
        self.olast = self.ohist and self.ohist[-1] or "W"
        self.oGuarder = len(self.ohist)>4 and self.ohist[-4]==self.ohist[-2]=="G"

    def move(self):
        if self.hon < 1: return self.bow
        if self.olast == "G": return self.attack
        if self.hon > 6:
            if self.oGuarder: return self.bow
            if self.ohon > 6: return self.guard
            if self.ohon < 7: return self.attack
            return self.attack
        if self.ohon > 6: return self.guard
        return self.bow

Yi = MasterYi()
print(Yi.move())

运行：另存为 MasterYi.py

python MasterYi.py <args>

Copy-san ^_（C）

复制对手的一举一动。可以肯定他一定会输。编译：gcc copy-san.c

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[]) {
    if (argc == 5) {
        putchar('B');
    } else {
        char *enemy_hist = argv[2];
        size_t len = strlen(enemy_hist);
        putchar(enemy_hist[len - 1]);
    }
    putchar('\n');
    return 0;
}

鹤壁（Java）

鹤壁跟随蛇的方式。

蛇不需要众神的祝福。

蛇滑行罢工。就像沙滩上的海浪一样，进来的东西逐渐消退。

蛇从不等待。

蛇没有适当的感觉，否则它将以Python编写。

运行说明：

> javac hebi.java
> java hebi

程式码主体：

public class hebi{

    public static void main(String args[]){

        if( (args.length < 5) || (args[0].length() % 18 == 0) ) System.out.println( "IPO".charAt((int)(Math.random()*3)) );
        else{

            int hist_size = args[0].length();

            if      (hist_size % 3 == 1) System.out.println("G");
            else if (hist_size % 3 == 2) System.out.println("B");
            else{

                if     (hist_size % 18 ==  9) System.out.println(args[0].charAt(hist_size -  3));
                else if(hist_size % 18 == 12) System.out.println(args[0].charAt(hist_size -  9));
                else if(hist_size % 18 == 15) System.out.println(args[0].charAt(hist_size - 15));
                else{

                    char move_head = args[0].charAt( (hist_size / 18) * 18 );
                    char move_mid;
                    if( hist_size % 18 == 3 ){
                        if     ( move_head == 'I' ) move_mid = "PO".charAt((int)(Math.random()*2));
                        else if( move_head == 'O' ) move_mid = "IP".charAt((int)(Math.random()*2));
                        else                        move_mid = "OI".charAt((int)(Math.random()*2));
                        System.out.println(move_mid);
                    }
                    else{
                        move_mid = args[0].charAt( ((hist_size / 18) * 18) + 3 );
                        char move_tail;

                        if( move_head == 'I' ){
                            if( move_mid == 'P' ) move_tail = 'O';
                            else                  move_tail = 'P';
                        }else if( move_head == 'P' ){
                            if( move_mid == 'O' ) move_tail = 'I';
                            else                  move_tail = 'O';
                        }else{
                            if( move_mid == 'I' ) move_tail = 'P';
                            else                  move_tail = 'I';
                        }

                        System.out.println( move_tail );

                    }

                }

            }

        }

    }

}

尊敬的（Java）

尊贵的价值观至高无上。也就是说，他的荣誉高于其他所有人。如果敌人的武士荣誉更高或相等，他会鞠躬。没有人比他更光荣。否则，他会随机移动。他从来没有连续两次守卫-这是不光彩的！

编译：

> javac TheHonourable.java
> java TheHonourable

资源：

public class TheHonourable {
    public static void main(String[] args) {
        char move;

        if (args.length < 5) {
            move = 'B';
        } else if (Integer.valueOf(args[5]) >= Integer.valueOf(args[4])){
            move = 'B';
        } else {
            move =  (args[0].endsWith("G")) ?
                    "IPO".charAt((int)(Math.random()*3)) :
                    "GIPO".charAt((int)(Math.random()*4));
        }

        System.out.print(move);
    }
}

祝福武士^{_（Python）}

这个武士试图尽可能长时间地保持众神的宠爱。他急忙拿起圣剑，然后以一次罢工在守卫和进攻之间轮流使用，并在需要时补充荣誉。如果看起来他或他的对手可能很快就倒下，他会冲杀。他会轻易落入一个可以追踪他的模式的对手，但是他始终攻击两次伤害的策略应该非常有效。

import sys
import random
class BlessedSamurai(object):
    def __init__(self):
        if len(sys.argv) < 7:
            print("B")
        else:
            self.attack = ['O', 'I', 'P']
            self.hp = sys.argv[3]
            self.ohp = sys.argv[4]
            self.hon = sys.argv[5]
            self.last = sys.argv[1][-1]
            print(self.move())

    def move(self):
        #check if I have low health or should rush the kill
        if (self.hp < 5 or self.ohp < 5) and self.hon > 0:
            return(random.choice(self.attack))
        # charge honour to get SOTG
        elif self.hon < 7:
            return 'B'
        #Alternate guarding and attacking
        else:
            if self.last == 'G':
                return(random.choice(self.attack))
            return 'G'
Sam = BlessedSamurai()

运行：
另存为BlessedSamurai.py

python BlessedSamurai.py <args>

Hermurai ^{_{（C ++）}}

钦佩他的对手，有点偏执。想知道他是否可以做其他武士可以做的事情，因为他仍然不相信自己是武士。他永不褪色的梦想在他意识到之前就变成了现实。可能要花他的头...

#include <stdio.h>
#include <string>
#include <sstream>

using namespace std;

char getLastAttack(string enemy_history)
{
    size_t found = enemy_history.find_last_of("IPO");
    if(found == string::npos)
    {
        return 'I';
    }

    return enemy_history[found];
}

int main(int argc, const char * argv[])
{
    if(argc != 7){
        printf("B");
        return 0;
    }

    string enemy_history(argv[2]);

    int ho;
    string honour(argv[5]);
    stringstream(honour) >> ho;

    if(ho > 20){
        char atk = getLastAttack(enemy_history);
        printf("%c", atk);
        return 0;
    }

    char lastMove = enemy_history[enemy_history.length()-1];
    if(lastMove == 'W' || lastMove == 'G')
        lastMove = 'B';
    printf("%c", lastMove);
    return 0;
}

Iniqy ^{_{（C ++）}}

尽力打击。处于危险中时进入不可阻挡的攻击模式。

#include <stdio.h>
#include <string>
#include <sstream>

using namespace std;

char getLastAttack(string enemy_history)
{
    size_t found = enemy_history.find_last_of("IPO");
    if(found == string::npos)
    {
        return 'I';
    }

    return enemy_history[found];
}

int main(int argc, const char * argv[])
{
    if(argc != 7){
        printf("B");
        return 0;
    }

    string history(argv[1]);
    string enemy_history(argv[2]);
    string health(argv[3]);
    string enemy_health(argv[4]);
    string honour(argv[5]);
    string enemy_honour(argv[6]);

    int he, enemy_he, ho, enemy_ho;
    stringstream(health) >> he;
    stringstream(enemy_health) >> enemy_he;
    stringstream(honour) >> ho;
    stringstream(enemy_honour) >> enemy_ho;

    if(ho > 6 || ((he < 6 || enemy_he < 6) && ho > 0))
    {
        char atk = getLastAttack(enemy_history);
        printf("%c", atk);
        return 0;
    }


    printf("B");
    return 0;
}

两者都是用C ++编写的。编译：

g++ iniqy.cpp -o iniqy

要在Linux上运行： ./iniqy

要在Windows上运行： iniqy.exe

终结者^{_{（红宝石）}}

终结者不注意自己的健康。终结者没有荣誉感。终结者是从未来发送的，只是确定要终止其对手。它通过观察对手的动作来做到这一点，而没有别的。它以复杂的方式对移动进行采样并计算适当的响应，以至于当今任何技术都无法预测终结者的行动。实际上，对于2015年居住的任何人，《终结者》似乎都是随机的...

responses = {
  ?W => %w(B I),
  ?B => %w(I O),
  ?G => %w(B B),
  ?I => %w(G P),
  ?P => %w(B O),
  ?O => %w(G I)
}

if ARGV.size > 4
  pool = ARGV[1].chars.map{ |c| responses[c] }.flatten
  puts pool.sample
else
  puts %w(O I P B).sample
end

特工38 ^[1]（C）

作为广泛的基因操作的产物，Agent 38具有超级^[2]-武士的体魄和精神敏锐度，并且绝对优于其所有无助的^{[需要的引用]}有缺陷的^{[需要的引用]}竞争对手。

//Agent 38
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#ifdef _WIN32
#include <Windows.h>
unsigned int tick_count(){
    return GetTickCount();
}
#else
#include <sys/time.h>
unsigned int tick_count(){
    struct timeval t;
    gettimeofday(&t, NULL);
    return 1000 * t.tv_sec + t.tv_usec / 1000;
}
#endif

float program[5][4][4][4][4]={
    {{{{-1.192779,0.693321,-1.472931,-0.054087},{0.958562,0.557915,0.883166,-0.631304},{-0.333221,1.410731,0.496346,0.087134},{0.459846,0.629780,-0.479042,-0.025909}},{{0.547976,1.059051,-0.748062,-0.675350},{-0.607591,-0.152156,-0.400350,-0.685337},{1.686450,0.628706,0.312865,0.324119},{1.652558,0.403733,-0.456481,-0.081492}},{{0.371629,-0.036948,-0.982682,0.065115},{1.360809,0.681294,0.505074,0.782737},{-0.545192,0.954937,-0.727853,0.273542},{-0.575777,1.615253,-0.064885,-0.516893}},{{0.577015,-0.112664,0.456595,-0.007560},{-0.660930,-0.738453,0.668093,1.716388},{1.972322,0.108558,0.535114,-0.337916},{0.640208,-0.019680,-0.769389,0.873087}}},{{{-0.021140,-0.095956,-0.098309,-0.280295},{-0.926284,1.724028,0.278855,0.678060},{0.153006,-1.860947,-0.577699,-1.931683},{-0.187152,0.529719,-1.164157,0.125499}},{{0.582208,-0.835029,-0.329857,0.088176},{-0.030797,0.389396,0.584636,-0.025866},{-0.736538,1.624658,0.690493,0.387515},{0.973253,-0.530825,1.934379,-0.872921}},{{0.812884,0.138399,-1.452478,-1.504340},{-0.119595,0.986078,-0.993806,1.102894},{0.848321,-0.268764,0.876110,0.782469},{0.948619,-0.557342,0.749764,-0.712915}},{{-1.195538,0.783784,-1.973428,-0.873207},{0.085426,-0.241360,-0.534561,-0.372105},{0.029696,-0.906821,0.932227,-0.834607},{0.764903,-0.276117,-1.346102,-0.093012}}},{{{0.168113,0.855724,1.817381,-0.547482},{0.468312,0.923739,-0.723461,0.798782},{-0.875978,-0.942505,-0.684104,-0.046389},{0.893797,-0.071382,0.283264,0.811233}},{{0.391760,0.309392,-0.045396,-0.977564},{0.085694,0.257926,-0.775461,0.060361},{0.486737,-0.175236,0.806258,-0.196521},{0.691731,-0.070052,0.636548,0.464838}},{{0.532747,-1.436236,-0.900262,-0.697533},{0.566295,0.650852,0.871414,-0.566183},{-0.075736,-0.886402,0.245348,-0.438080},{-0.811976,0.022233,-0.685647,0.323351}},{{-1.864578,1.141054,1.636157,-0.455965},{0.592333,0.890900,-0.259255,0.702826},{0.404528,0.905776,0.917764,0.051214},{0.761990,0.766907,-0.595618,-0.558207}}},{{{0.209262,-1.126957,-0.517694,-0.875215},{0.264791,0.338225,0.551586,0.505277},{0.183185,0.782227,0.888956,0.687343},{0.271838,0.125254,1.071891,-0.849511}},{{0.261293,-0.445399,0.170976,-0.401571},{0.801811,0.045041,-0.990778,-0.013705},{-0.343000,-0.913162,0.840992,0.551525},{-0.526818,-0.231089,0.085968,0.861459}},{{0.540677,-0.844281,-0.888770,0.438555},{0.802355,-0.825937,0.472974,-0.719263},{-0.648519,1.281454,0.470129,-0.538160},{-0.851015,0.985721,-0.993719,0.558735}},{{1.164560,-0.302101,0.953803,0.277318},{0.886169,0.623929,1.274299,-0.559466},{-0.948670,0.807814,-1.586962,-0.502652},{-0.069760,1.387864,-0.423140,0.285045}}}},
    {{{{0.747424,-0.044005,0.402212,-0.027484},{0.785297,0.169685,0.734339,-0.984272},{-0.656865,-1.397558,0.935961,-0.490159},{-0.099856,-0.293917,0.129296,-0.920536}},{{0.546529,-0.488280,-0.516120,-1.112775},{0.155881,-0.103160,0.187689,0.485805},{0.918357,0.829929,0.619437,0.877277},{0.389621,0.360045,0.434281,0.456462}},{{-0.803458,-0.525248,-0.467349,0.714159},{-0.648302,-0.005998,-0.812863,0.205664},{0.591453,0.653762,-0.227193,-0.946375},{0.080461,0.311794,0.802115,-1.115836}},{{-0.495051,-0.869153,-0.179932,0.925227},{-1.950445,1.908723,-0.378323,-0.472620},{-0.688403,-1.470251,1.991375,-1.698926},{-0.955808,-0.260230,0.319449,-1.368107}}},{{{-0.029073,-0.622921,-1.095426,-0.764465},{-0.362713,-0.123863,0.234856,-0.772613},{0.697097,0.103340,0.831709,0.529785},{0.103735,-0.526333,-0.084778,0.696831}},{{-0.670775,0.289993,-0.082204,-1.489529},{0.336070,0.322759,0.613241,0.743160},{0.298744,-1.193191,0.848769,-0.736213},{0.472611,-0.830342,0.437290,-0.467557}},{{-0.529196,-0.245683,0.809606,-0.956047},{-1.725613,0.187572,0.528054,-0.996271},{-0.330207,0.206237,0.218373,0.187079},{0.243388,0.625787,-0.388859,0.439888}},{{-0.802928,-0.811282,0.788538,0.948829},{0.966371,1.316717,0.004928,0.832735},{-0.226313,0.364653,0.724902,-0.579910},{-0.544782,-0.143865,0.069256,-0.020610}}},{{{-0.393249,0.671239,-0.481891,0.861149},{-0.662027,-0.693554,-0.564079,-0.477654},{0.070920,-0.052125,-0.059709,0.473953},{-0.280146,-0.418355,0.703337,0.981932}},{{-0.676855,0.102765,-0.832902,-0.590961},{1.717802,0.516057,-0.625379,-0.743204},{-0.170791,-0.813844,-0.269250,0.707447},{0.057623,0.472053,-0.211435,0.147894}},{{-0.298217,0.577550,1.845773,0.876933},{0.617987,0.502801,0.951405,0.122180},{0.924724,-0.166798,0.632685,-0.466165},{-0.834315,-0.864180,-0.274019,0.568493}},{{0.669850,-0.961671,0.790462,0.738113},{-0.534215,-0.556158,0.653896,0.031419},{0.065819,0.220394,0.153365,-0.373006},{0.886610,-0.742343,1.282099,0.198137}}},{{{0.092579,-0.026559,-1.121547,0.143613},{-0.289030,0.265226,-0.350741,-0.897469},{-0.918046,0.038521,-1.515900,0.488701},{-0.759326,-1.782885,-1.787784,0.249131}},{{-0.849816,-0.857074,-0.843467,-0.153686},{0.998653,0.356216,0.926775,0.300663},{-0.749890,-0.003425,-0.607109,0.317334},{-0.561644,0.446478,-0.898901,0.711265}},{{0.232020,-0.445016,0.618918,0.162098},{0.381030,-0.036170,0.084177,0.766972},{0.493139,0.189652,-0.511946,-0.273525},{0.863772,-0.586968,0.829531,-0.075552}},{{0.191787,-0.627198,0.975013,-0.448483},{-0.197885,0.151927,-0.558646,-1.308541},{-0.582967,1.207841,0.746132,0.245631},{0.314827,-0.702463,-0.301494,0.787569}}}},
    {{{{0.670028,-1.825749,-0.739187,0.482428},{0.175521,-0.020120,-0.154805,0.187004},{0.971728,-0.160181,-0.164031,-0.868147},{-0.954732,-0.175713,0.791116,0.294173}},{{-0.958337,-0.843157,-0.472882,0.273517},{-0.999058,0.824762,-0.223130,-0.150628},{0.393747,-0.301297,0.095572,-0.798950},{-0.119787,0.746673,0.955094,0.259353}},{{0.951590,0.225539,0.503282,0.668746},{-0.384898,-0.979592,-0.005485,-0.191883},{-0.692369,-0.642401,-0.825598,0.171933},{-0.321919,-0.498635,0.449704,0.780842}},{{-0.387902,0.522435,0.565608,0.166193},{-0.799671,-0.295871,-0.702573,-0.151006},{0.040550,-0.468503,0.651076,0.636352},{-0.839299,-0.090651,0.428761,0.187043}}},{{{-0.369823,0.377011,0.422936,0.284752},{-0.181514,-0.701449,0.748768,0.540533},{0.734381,0.149410,-0.867043,-0.397142},{-0.770904,-0.581897,-1.578306,-0.402638}},{{0.859015,-0.540358,0.202715,-0.975354},{-0.773629,-0.382342,-0.022498,-0.129286},{-0.901210,-0.641866,1.219216,0.731525},{0.740457,0.858546,-0.408661,-0.364897}},{{-0.830865,-1.370657,-1.226303,-0.392147},{-0.810554,-0.975232,-0.717845,-0.825379},{-0.150096,-0.664533,0.347084,0.243443},{-0.447383,0.842164,1.491342,0.380295}},{{-0.383958,0.811219,0.160459,0.841601},{1.631515,0.371637,0.110000,0.467783},{-0.689356,-0.004289,-0.081057,-0.317243},{0.092451,-0.181268,-0.575747,-0.580061}}},{{{0.908549,-0.013975,-0.880165,-0.938937},{-0.225713,0.449478,0.372569,-0.229889},{0.255711,-0.264752,0.307982,0.260505},{0.314966,-0.540905,0.743032,-0.078475}},{{-0.307472,-1.268296,0.020383,1.798401},{-0.150954,0.909716,-0.407903,0.379046},{0.621853,-0.003629,-0.582697,0.614618},{-0.122843,-0.627133,-0.217968,0.608322}},{{0.071923,0.807315,0.538905,-0.630660},{0.495641,0.240202,-0.920822,-0.258533},{-1.760363,-0.448525,-0.351553,-0.551666},{0.152720,0.900531,0.061966,-0.544377}},{{0.648923,0.450945,-1.530020,1.570190},{0.536210,0.078454,0.577168,0.464872},{-0.888258,-0.950748,0.781474,0.958593},{0.463631,0.319614,-0.248374,-0.413144}}},{{{0.293463,0.236284,1.721511,0.107408},{-0.790508,-0.072027,-0.559467,-0.955839},{-0.777662,-0.169876,0.896220,0.776105},{0.003944,-0.745496,-0.236446,-0.824604}},{{-1.770746,-0.051266,-0.174258,0.003074},{-0.339553,-0.868807,-0.032754,-0.494847},{-0.896712,0.957339,-0.003444,-1.582125},{-0.699883,0.626691,0.799635,-0.542343}},{{-0.635123,-0.755960,0.576373,-0.899530},{-0.393745,0.718900,0.312400,0.511415},{-0.647565,0.368431,0.214726,0.892693},{-0.511960,-0.513262,0.885908,-0.536478}},{{-0.590074,0.623328,0.268674,-0.401391},{0.308868,-0.869862,0.233132,0.243337},{-0.242908,-0.557192,-0.728454,0.867029},{0.156435,-0.805308,-0.815392,-1.437798}}}},
    {{{{0.613484,1.454566,-0.363858,0.634053},{0.535096,-0.641079,-0.607553,0.852559},{0.959100,-0.398621,0.375819,0.385756},{-0.601982,0.494128,0.809699,0.608804}},{{-1.390871,-0.943062,1.556671,0.966501},{-0.013242,0.152716,-0.089592,0.230793},{0.933785,0.119358,0.057387,0.502033},{-0.332925,0.537509,-0.081436,-0.701995}},{{-0.435117,0.996885,0.646630,-0.092342},{0.004343,-0.737514,-0.716187,-0.946819},{0.814258,-0.766971,-0.488162,-0.531619},{-0.923069,0.683915,-0.023809,-1.242992}},{{-0.909155,-0.166488,-0.159273,-0.908121},{-0.783871,-0.522598,0.691845,-0.164065},{1.255966,0.051373,-0.566025,0.820081},{0.186583,0.266032,-0.793747,-0.510092}}},{{{0.890639,0.970042,-0.507885,-0.029557},{-0.771142,-0.875802,0.400070,-1.264247},{-0.881146,0.570950,-0.051624,0.347612},{0.312110,-0.374885,0.600112,0.388460}},{{-0.417107,-0.309284,-0.128477,0.689671},{-0.695866,1.254585,-0.381883,-0.313415},{0.433565,0.919626,0.159180,-0.657310},{-1.396139,0.346053,0.108768,0.061238}},{{-0.776695,0.084491,0.045357,0.312823},{-0.379268,1.217006,-0.014838,-1.032272},{-1.251344,-0.366283,-0.124786,0.729754},{0.979936,0.669519,-0.900018,-0.596954}},{{-0.998834,0.593942,0.375639,-0.627459},{0.297281,0.400240,0.839707,0.960262},{-0.872143,0.574040,-0.559580,-1.965570},{-0.559218,-0.778780,-0.955526,-0.253380}}},{{{-1.919625,-1.911049,0.025035,0.754917},{-0.110993,0.535933,-0.572788,-0.856476},{-0.810836,-0.496261,1.128368,1.758826},{-0.564368,-1.849772,-0.251560,0.635528}},{{0.768196,-0.934122,0.207228,0.884610},{-0.356145,0.265792,-0.835582,0.377675},{-0.410745,0.613212,0.245560,-0.873826},{1.725191,-0.263344,-0.077167,-0.976379}},{{-0.736299,-0.109476,0.044512,-0.004005},{0.692230,0.316670,0.267247,-1.076821},{-0.903184,0.189762,-0.674111,0.219113},{0.639162,1.347521,0.428823,-0.765664}},{{-0.509165,0.458806,-0.851011,0.455027},{-0.218564,-0.063492,0.889320,-0.762062},{0.145950,0.985037,-0.489372,-0.879851},{0.352346,-0.127275,0.896496,-0.596037}}},{{{0.402678,1.479855,0.089187,0.967153},{-0.431225,0.402980,0.883584,-0.900324},{0.262233,-0.647278,0.637005,0.142678},{-0.003253,-0.671924,0.969458,-0.316752}},{{0.345185,-0.477503,-0.326822,-0.106251},{0.239521,1.617125,0.632651,0.969976},{-1.015183,-0.676629,0.955842,0.134925},{-0.319063,-0.493157,-0.488088,0.713008}},{{-0.468621,1.301292,-1.826501,1.138666},{0.170247,-0.661171,0.895204,-0.400700},{-0.077645,-0.978179,-0.245724,0.245282},{-0.258300,0.287261,-0.006274,0.549716}},{{-0.932247,-0.274950,0.920451,0.016237},{0.888865,-0.845248,1.661716,-0.108960},{0.712357,0.586609,-0.867356,0.355058},{-0.540912,0.892622,0.302627,0.247194}}}},
    {{{{0.817578,0.719047,0.438903,0.637398},{0.750466,-0.911799,-0.609606,0.358541},{-1.782979,-0.851717,-0.802122,0.735913},{0.490604,-0.417822,-0.332074,0.836756}},{{-0.650232,-0.442026,0.874916,0.705671},{0.217602,-0.755841,0.573944,0.279365},{-0.713729,0.358880,-0.308992,0.778297},{0.832099,-0.916695,-0.887834,1.041483}},{{1.019467,1.099488,-0.130674,-0.241995},{0.792572,0.756977,0.518186,0.070411},{-0.815779,-0.790757,-1.027439,-0.163698},{0.721461,-0.403364,0.656609,-0.367364}},{{-0.279333,-0.742041,0.515832,-0.408114},{0.834577,0.736056,0.900594,0.276357},{0.726000,0.464991,-0.569281,0.098139},{-0.582324,0.875666,-0.681556,-0.903009}}},{{{1.300969,-0.798351,0.107230,1.611284},{0.239211,0.418231,-0.795764,-0.398818},{-0.939666,1.768175,-0.297023,-0.064087},{-0.239119,-0.365132,0.864138,0.595560}},{{1.898313,-0.343816,1.066256,0.876655},{-0.053636,0.544756,-0.937927,0.189233},{0.445371,-0.656790,-0.675091,0.753163},{-0.293330,-0.002717,0.341173,0.095493}},{{0.951658,0.513912,-0.678347,-0.981140},{-0.020791,0.571138,-0.890648,0.881789},{-1.783345,0.909598,-0.393155,0.240630},{-0.057908,-0.237435,-0.124993,-0.754091}},{{-0.014153,0.127172,0.097134,0.538952},{0.167943,0.786395,0.946153,-0.762513},{-0.562758,0.675657,-0.226395,0.979761},{0.850214,0.818309,0.397074,-0.372059}}},{{{0.803316,-0.659538,-1.987864,-0.186366},{-0.259213,0.315848,-0.427898,0.326521},{-0.168181,-0.620898,0.562309,0.722064},{-1.949690,0.307720,-0.147760,0.603492}},{{0.898339,0.986228,0.724530,0.105193},{0.066046,0.037689,-0.553543,0.597864},{0.296553,0.165199,0.500125,-0.395978},{0.790120,-1.873361,0.354841,-0.187812}},{{-0.559746,0.357012,0.373903,-0.113564},{-0.671918,-0.919720,0.258328,-0.283453},{0.008365,0.597272,0.355827,0.391287},{0.355297,-0.631888,0.221383,1.448221}},{{0.259199,-0.491776,0.721151,0.391427},{0.494000,0.652814,-0.153306,-0.615687},{0.142167,-0.601161,0.281702,0.563390},{0.904019,1.284241,0.901663,0.244620}}},{{{-0.664638,-0.564596,0.839897,0.153358},{-0.506883,0.822337,-0.974957,-0.098112},{-0.962870,-0.274566,0.418039,-0.020525},{-0.965969,0.954587,-0.250493,-0.031592}},{{-0.966475,0.455338,0.868491,0.723032},{-0.002141,0.021922,-0.131429,-0.601106},{-1.240003,1.483318,1.612920,-0.653210},{-0.505979,0.005588,-0.087506,-0.705789}},{{-0.203137,0.765652,-0.132974,-0.900534},{0.731132,0.133467,-1.086363,0.600763},{1.795911,-0.411613,-1.990494,0.405937},{0.729332,-0.119175,-0.979213,0.362346}},{{-0.049014,0.228577,-1.728796,-0.898348},{-0.540969,1.245881,-0.820859,0.285859},{0.430751,-0.373652,0.034535,0.434466},{0.365354,0.243261,0.910114,1.497873}}}}
};
float eval_polynomial(float variables[4],int program_index,int variable_index,int indices[4]){
    if(variable_index==4)return program[program_index][indices[0]][indices[1]][indices[2]][indices[3]];
    float result=0,base=1;
    for(int power=0;power<4;++power){
        indices[variable_index]=power;
        result+=base*eval_polynomial(variables,program_index,variable_index+1,indices);
        base*=variables[variable_index];
    }
    return result;
}
int main(int argc,char *argv[]){
    srand(tick_count());
    rand();
    float variables[4],probability[5],total=0;
    int i,indices[4],temp;
    for(i=0;i<4;++i){
        sscanf(argv[i-4+argc],"%d",&temp);
        variables[i]=temp;
    }
    temp=variables[1];
    variables[1]=variables[2];
    variables[2]=temp;
    if(variables[1]==0){ //bow if our honour is 0
        putchar('B');
        return 0;
    }

    variables[0]/=20;variables[2]/=20;
    variables[1]=1/(variables[1]+1);variables[3]=1/(variables[3]+1);
    for(i=0;i<5;++i){
        probability[i]=eval_polynomial(variables,i,0,indices);
        if(probability[i]<0)probability[i]=0;
        total+=probability[i];
        probability[i]=total;
    }
    total*=(float)rand()/RAND_MAX;
    for(i=0;i<5;++i)if(total<probability[i]){
        putchar("BGIPO"[i]);
        return 0;
    }
    putchar('B');
    return 0;
}

_{[1]完全不相关的数字[2]保证1％的时间是正确的}

雅格

蒙特卡洛方法似乎表现得不错，所以这里是另一种通用的蒙特卡洛模拟条目！

与本比赛中的其他大多数条目不同，该条目使用了大量的随机游戏模拟，因此需要使用-O3标志才能获得最佳性能。

使用以下命令编译程序： gcc monte.c -o monte -O3 -std = c99

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef _WIN32
#include <Windows.h>
unsigned int tick_count(){
    return GetTickCount();
}
#else
#include <sys/time.h>
unsigned int tick_count(){
    struct timeval t;
    gettimeofday(&t, NULL);
    return 1000 * t.tv_sec + t.tv_usec / 1000;
}
#endif

const int turn_limit=500;
enum Move{
    WAIT,BOW,GUARD,QUICK,PARRY,OVERHEAD
};
struct Player{
    int health,honour;
    enum Move lastMove;
};
typedef struct Player Player;
//<command> <history> <enemy_history> <your_health> <enemy_health> <your_honour> <enemy_honour>
//<command> <your_health> <enemy_health> <your_honour> <enemy_honour>
int damage_table[6][6][2]={
    {{0,0},{0,0},{0,0},{1,0},{1,0},{1,0}}, //P1 is waiting
    {{0,0},{0,0},{0,0},{1,0},{1,0},{1,0}}, //P1 is bowing
    {{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}}, //P1 is guarding
    {{0,1},{0,1},{0,0},{0,0},{1,0},{0,1}}, //P1 is using quick draw
    {{0,1},{0,1},{0,0},{0,1},{0,0},{1,0}}, //P1 is parrying
    {{0,1},{0,1},{0,0},{1,0},{0,1},{0,0}} //P1 is using overhead attack
};
enum Move decode_move(char x){
    switch(x){
        case 'W': return WAIT; break;
        case 'B': return BOW; break;
        case 'G': return GUARD; break;
        case 'I': return QUICK; break;
        case 'P': return PARRY; break;
        case 'O': return OVERHEAD; break;
    }
    return WAIT;
}
struct SimulationStat{
    enum Move first_me_move;
    int win,draw,lose,compound;
};
int stat_compare(const void*a,const void*b){
    return ((struct SimulationStat*)b)->compound-((struct SimulationStat*)a)->compound;
}
struct SimulationStat monte_carlo(int num_iters,enum Move first_me_move,Player original_me,Player original_opponent){
    struct SimulationStat simulation_result={first_me_move,0,0,0};

    for(int iter=0;iter<num_iters;++iter){
    Player me=original_me,opponent=original_opponent;
        int turn,game_result;
        for(turn=0;turn<turn_limit;++turn){
            enum Move me_move,opponent_move=rand()%(OVERHEAD-BOW+1)+BOW;
            if(turn==0)me_move=first_me_move;
            else me_move=rand()%(OVERHEAD-BOW+1)+BOW;

            //update honour for guarding
            if(me.lastMove==GUARD&&me_move==GUARD)--me.honour;
            if(opponent.lastMove==GUARD&&opponent_move==GUARD)--opponent.honour;

            int me_attacking=me_move==QUICK||me_move==PARRY||me_move==OVERHEAD,opponent_attacking=opponent_move==QUICK||opponent_move==PARRY||opponent_move==OVERHEAD;

            //update health of players
            me.health-=damage_table[me_move][opponent_move][0]*(1+(opponent.honour>=7));
            opponent.health-=damage_table[me_move][opponent_move][1]*(1+(me.honour>=7));

            //update honour for attacking (Sword of the Gods is revoked after the player attacks with an original honour value of 7)
            if(me_attacking)--me.honour;
            if(opponent_attacking)--opponent.honour;

            //printf("%d %d\n",me.health,me.honour);
            //printf("%d %d\n",opponent.health,opponent.honour);

            //check if any of the terminating conditions are met
            //c. both players fall off the graces of the gods (me.honour<0&&opponent.honour<0)
            if(me.honour<0&&opponent.honour<0){
                game_result=0; //draw
                break;
            }
            //a. player 1 falls off the graces of the gods (me.honour<0)
            else if(me.honour<0){
                game_result=-1; //loss
                break;
            }
            //b. player 2 falls off the graces of the gods (opponent.honour<0)
            else if(opponent.honour<0){
                game_result=1; //win
                break;
            }
            //d. both players are dead (me.health<0&&opponent.health<0)
            else if(me.health<0&&opponent.health<0){
                game_result=0; //draw
                break;
            }
            //e. player 1 is dead (me.health<0)
            else if(me.health<0){
                game_result=-1; //loss
                break;
            }
            //f. player 2 is dead (opponent.health<0)
            else if(opponent.health<0){
                game_result=1; //win
                break;
            }
        }
        //both players get struck down by the guards for being boring
        if(turn==turn_limit)game_result=0; //draw

        if(game_result==1)++simulation_result.win;
        else if(game_result==0)++simulation_result.draw;
        else ++simulation_result.lose;
    }
    return simulation_result;
}
int main(int argc,char*argv[]){
    //const int num_iters=200000,num_shortlist_iters=1000000;
    const int num_iters=20000,num_shortlist_iters=55000;

    srand(tick_count());
    Player me,opponent;
    if(argc==5){
        sscanf(argv[1],"%d",&me.health);
        sscanf(argv[2],"%d",&opponent.health);
        sscanf(argv[3],"%d",&me.honour);
        sscanf(argv[4],"%d",&opponent.honour);
        me.lastMove=WAIT;
        opponent.lastMove=WAIT;
    }else{
        sscanf(argv[3],"%d",&me.health);
        sscanf(argv[4],"%d",&opponent.health);
        sscanf(argv[5],"%d",&me.honour);
        sscanf(argv[6],"%d",&opponent.honour);
        me.lastMove=decode_move(argv[1][strlen(argv[1])-1]);
        opponent.lastMove=decode_move(argv[2][strlen(argv[2])-1]);
    }

    struct SimulationStat results[6];
    results[0].first_me_move=WAIT;
    results[0].win=0;
    results[0].draw=0;
    results[0].lose=num_iters;
    results[0].compound=-num_iters*2-1000; //waiting is worse than any other action

    for(enum Move first_me_move=BOW;first_me_move<=OVERHEAD;++first_me_move){
        results[first_me_move]=monte_carlo(num_iters,first_me_move,me,opponent);
        struct SimulationStat *cur=&results[first_me_move];
        cur->compound=cur->win*4+cur->draw*1-cur->lose*2;
    }
    qsort(results,OVERHEAD-WAIT+1,sizeof(*results),stat_compare);

    for(int i=0;i<OVERHEAD-BOW+1;++i){
        struct SimulationStat *cur=&results[i];
//        fprintf(stderr,"%c: %f%% win, %f%% draw, %f%% lose => %d\n","WBGIPO"[cur->first_me_move],(double)cur->win/num_iters*100.,(double)cur->draw/num_iters*100.,(double)cur->lose/num_iters*100.,cur->compound);
    }

    for(int i=0;i<2;++i){
        results[i]=monte_carlo(num_shortlist_iters,results[i].first_me_move,me,opponent);
        struct SimulationStat *cur=&results[i];
        cur->compound=cur->win*2+cur->draw*1;
    }
    qsort(results,2,sizeof(*results),stat_compare); 

    for(int i=0;i<2;++i){
        struct SimulationStat *cur=&results[i];
//        fprintf(stderr,"%c: %f%% win, %f%% draw, %f%% lose => %d\n","WBGIPO"[cur->first_me_move],(double)cur->win/num_shortlist_iters*100.,(double)cur->draw/num_shortlist_iters*100.,(double)cur->lose/num_shortlist_iters*100.,cur->compound);
    }
    putchar("WBGIPO"[results[0].first_me_move]);
    return 0;
}