代码高尔夫:井字游戏

发布于 2024-08-21 08:13:12 字数 603 浏览 14 评论 0原文

按字符数发布您的最短代码,以检查玩家是否获胜,如果获胜,是哪一个。

假设变量 b(棋盘)中有一个整数数组,其中包含 Tic Tac Toe 棋盘和玩家的动作,其中:

  • 0 = 没有设置
  • 1 = 玩家 1 (X)
  • 2 =玩家 2 (O)

因此,给定数组 b = [ 1, 2, 1, 0, 1, 2, 1, 0, 2 ] 将代表棋盘

X|O|X
-+-+-
 |X|O
-+-+-
X| |O

对于这种情况,您的代码应该输出1 表示玩家 1 获胜。如果没有人获胜,您可以输出 0false

我自己的(Ruby)解决方案很快就会推出。

编辑:抱歉,忘记将其标记为社区维基。您可以假设输入格式正确,并且不必进行错误检查。


更新:请以函数的形式发布您的解决方案。大多数人已经这样做了,但有些人还没有,这并不完全公平。该板作为参数提供给您的函数。结果应该由函数返回。该函数可以有您选择的名称。

Post your shortest code, by character count, to check if a player has won, and if so, which.

Assume you have an integer array in a variable b (board), which holds the Tic Tac Toe board, and the moves of the players where:

  • 0 = nothing set
  • 1 = player 1 (X)
  • 2 = player 2 (O)

So, given the array b = [ 1, 2, 1, 0, 1, 2, 1, 0, 2 ] would represent the board

X|O|X
-+-+-
 |X|O
-+-+-
X| |O

For that situation, your code should output 1 to indicate player 1 has won. If no-one has won you can output 0 or false.

My own (Ruby) solution will be up soon.

Edit: Sorry, forgot to mark it as community wiki. You can assume the input is well formed and does not have to be error checked.


Update: Please post your solution in the form of a function. Most people have done this already, but some haven't, which isn't entirely fair. The board is supplied to your function as the parameter. The result should be returned by the function. The function can have a name of your choosing.

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孤独陪着我 2024-08-28 08:13:12

疯狂的 Python 解决方案 - 79 个字符

max([b[x] for x in range(9) for y in range(x) for z in range(y)
    if x+y+z==12 and b[x]==b[y]==b[z]] + [0])

但是,这假设 b 中的棋盘位置有不同的顺序:

 5 | 0 | 7
---+---+---
 6 | 4 | 2
---+---+---
 1 | 8 | 3

b[5] 代表左上角,所以在。

为了最大限度地减少上述内容:

r=range
max([b[x]for x in r(9)for y in r(x)for z in r(y)if x+y+z==12and b[x]==b[y]==b[z]]+[0])

93 个字符和一个换行符。

更新: 使用按位 AND 技巧减少至 79 个字符和一个换行符:

r=range
max([b[x]&b[y]&b[z]for x in r(9)for y in r(x)for z in r(y)if x+y+z==12])

Crazy Python solution - 79 characters

max([b[x] for x in range(9) for y in range(x) for z in range(y)
    if x+y+z==12 and b[x]==b[y]==b[z]] + [0])

However, this assumes a different order for the board positions in b:

 5 | 0 | 7
---+---+---
 6 | 4 | 2
---+---+---
 1 | 8 | 3

That is, b[5] represents the top-left corner, and so on.

To minimize the above:

r=range
max([b[x]for x in r(9)for y in r(x)for z in r(y)if x+y+z==12and b[x]==b[y]==b[z]]+[0])

93 characters and a newline.

Update: Down to 79 characters and a newline using the bitwise AND trick:

r=range
max([b[x]&b[y]&b[z]for x in r(9)for y in r(x)for z in r(y)if x+y+z==12])
我纯我任性 2024-08-28 08:13:12

C,77 (83) 个字符

这是 dmckee' 的变体s 解决方案,不同之处在于紧凑编码中的每对数字现在都是 ASCII 字符的基于 9 的数字。

77-char 版本,不适用于 MSVC:

// "J)9\t8\r=,\0" == 82,45,63,10,62,14,67,48,00 in base 9.
char*k="J)9 8\r=,",c;f(int*b){return(c=*k++)?b[c/9]&b[c%9]&b[*k--%9]|f(b):0;}

83-char 版本,应该适用于每个 C 编译器:(

f(int*b){char*k="J)9    8\r=,",s=0,c;while(c=*k++)s|=b[c%9]&b[c/9]&b[*k%9];return s;}

请注意,9 和 8 之间的空格应该StackOverflow 将所有制表符转换为空格。)


测试用例:

#include <stdio.h>  
void check(int* b) {
    int h0 = b[0]&b[1]&b[2];
    int h1 = b[3]&b[4]&b[5];
    int h2 = b[6]&b[7]&b[8];
    int h3 = b[0]&b[3]&b[6];
    int h4 = b[1]&b[4]&b[7];
    int h5 = b[2]&b[5]&b[8];
    int h6 = b[0]&b[4]&b[8];
    int h7 = b[2]&b[4]&b[6];
    int res = h0|h1|h2|h3|h4|h5|h6|h7;
    int value = f(b);
    if (value != res)
        printf("Assuming f({%d,%d,%d, %d,%d,%d, %d,%d,%d}) == %d; got %d instead.\n", 
            b[0],b[1],b[2], b[3],b[4],b[5], b[6],b[7],b[8], res, value);
}
#define MAKEFOR(i) for(b[(i)]=0;b[(i)]<=2;++b[(i)])

int main() {
    int b[9];

    MAKEFOR(0)
    MAKEFOR(1)
    MAKEFOR(2)
    MAKEFOR(3)
    MAKEFOR(4)
    MAKEFOR(5)
    MAKEFOR(6)
    MAKEFOR(7)
    MAKEFOR(8)
        check(b);

    return 0;
}

C, 77 (83) characters

This is a variant of dmckee's solution, except that each pair of digits in the Compact Coding is now the base-9 digits of the ASCII characters.

The 77-char version, does not work on MSVC:

// "J)9\t8\r=,\0" == 82,45,63,10,62,14,67,48,00 in base 9.
char*k="J)9 8\r=,",c;f(int*b){return(c=*k++)?b[c/9]&b[c%9]&b[*k--%9]|f(b):0;}

This 83-char version, should work on every C compiler:

f(int*b){char*k="J)9    8\r=,",s=0,c;while(c=*k++)s|=b[c%9]&b[c/9]&b[*k%9];return s;}

(Note that the spaces between the 9 and 8 should be a tab. StackOverflow converts all tabs into spaces.)


Test case:

#include <stdio.h>  
void check(int* b) {
    int h0 = b[0]&b[1]&b[2];
    int h1 = b[3]&b[4]&b[5];
    int h2 = b[6]&b[7]&b[8];
    int h3 = b[0]&b[3]&b[6];
    int h4 = b[1]&b[4]&b[7];
    int h5 = b[2]&b[5]&b[8];
    int h6 = b[0]&b[4]&b[8];
    int h7 = b[2]&b[4]&b[6];
    int res = h0|h1|h2|h3|h4|h5|h6|h7;
    int value = f(b);
    if (value != res)
        printf("Assuming f({%d,%d,%d, %d,%d,%d, %d,%d,%d}) == %d; got %d instead.\n", 
            b[0],b[1],b[2], b[3],b[4],b[5], b[6],b[7],b[8], res, value);
}
#define MAKEFOR(i) for(b[(i)]=0;b[(i)]<=2;++b[(i)])

int main() {
    int b[9];

    MAKEFOR(0)
    MAKEFOR(1)
    MAKEFOR(2)
    MAKEFOR(3)
    MAKEFOR(4)
    MAKEFOR(5)
    MAKEFOR(6)
    MAKEFOR(7)
    MAKEFOR(8)
        check(b);

    return 0;
}
夜无邪 2024-08-28 08:13:12

Python 80 (69) char

不是最短的 Python 解决方案,但我喜欢它如何将“DICE”引入井字游戏:

W=lambda b:max([b[c/5-9]&b[c/5+c%5-9]&b[c/5-c%5-9]for c in map(ord,"DICE>3BQ")])

69 个字符用于更简单的表达式:

max([b[c/5-9]&b[c/5+c%5-9]&b[c/5-c%5-9]for c in map(ord,"DICE>3BQ")])

Python 80 (69) char

Not the shortest Python solution, but I like how it introduces "DICE" into a game of tic-tac-toe:

W=lambda b:max([b[c/5-9]&b[c/5+c%5-9]&b[c/5-c%5-9]for c in map(ord,"DICE>3BQ")])

69 chars for the simpler expression:

max([b[c/5-9]&b[c/5+c%5-9]&b[c/5-c%5-9]for c in map(ord,"DICE>3BQ")])
梦里寻她 2024-08-28 08:13:12

Perl,87 85 个字符

当然,使用正则表达式返回 0、1 或 2 的函数(换行符只是为了避免滚动条):

sub V{$"='';$x='(1|2)';"@_"=~
/^(...)*$x\2\2|^..$x.\3.\3|$x..\4..\4|$x...\5...\5/?$^N:0}

它可以被称为 V(例如,@b)

Perl, 87 85 characters

A function that returns 0, 1 or 2, using a regular expression, of course (the newline's only there to avoid the scrollbar):

sub V{
quot;='';$x='(1|2)';"@_"=~
/^(...)*$x\2\2|^..$x.\3.\3|$x..\4..\4|$x...\5...\5/?$^N:0}

It can be called as V(@b), for example.

卷耳 2024-08-28 08:13:12

J,50 个字符

w=:3 : '{.>:I.+./"1*./"1]1 2=/y{~2 4 6,0 4 8,i,|:i=.i.3 3'

J, 50 chars

w=:3 : '{.>:I.+./"1*./"1]1 2=/y{~2 4 6,0 4 8,i,|:i=.i.3 3'
李不 2024-08-28 08:13:12

我不满意重复自己(水平/垂直和对角线),但我认为这是一个公平的开始。

C# w/LINQ:

public static int GetVictor(int[] b)
{
    var r = Enumerable.Range(0, 3);
    return r.Select(i => r.Aggregate(3, (s, j) => s & b[i * 3 + j])).Concat(
        r.Select(i => r.Aggregate(3, (s, j) => s & b[j * 3 + i]))).Aggregate(
        r.Aggregate(3, (s, i) => s & b[i * 3 + i]) | r.Aggregate(3, (s, i) => s & b[i * 3 + (2 - i)]),
        (s, i) => s | i);
}

策略:按位 AND 行/列/对角线的每个元素与其他元素(以 3 作为种子)以获得该子集的胜利者,以及 OR< /code> 最后将它们全部放在一起。

I'm not happy with repeating myself (horizontal/vertical, and the diagonals), but I think it's a fair start.

C# w/LINQ:

public static int GetVictor(int[] b)
{
    var r = Enumerable.Range(0, 3);
    return r.Select(i => r.Aggregate(3, (s, j) => s & b[i * 3 + j])).Concat(
        r.Select(i => r.Aggregate(3, (s, j) => s & b[j * 3 + i]))).Aggregate(
        r.Aggregate(3, (s, i) => s & b[i * 3 + i]) | r.Aggregate(3, (s, i) => s & b[i * 3 + (2 - i)]),
        (s, i) => s | i);
}

Strategy: Bitwise AND each element of a row/column/diagonal with the other elements (with 3 as a seed) to obtain a victor for that subset, and OR them all together at the end.

淡看悲欢离合 2024-08-28 08:13:12

Ruby,115 个字符

哎呀:不知怎的,我数错了很多。这实际上是 115 个字符,

def t(b)[1,2].find{|p|[448,56,7,292,146,73,273,84].any?{|k|(k^b.inject(0){|m,i|m*2+((i==p)?1:0)})&k==0}}||false end

# Usage:
b = [ 1, 2, 1,
      0, 1, 2,
      1, 0, 2 ]
t(b) # => 1

b = [ 1, 1, 0,
      2, 2, 2,
      0, 2, 1 ]
t(b) # => 2

b = [ 0, 0, 1,
      2, 2, 0,
      0, 1, 1 ]
t(b) # => false

而不是 79 个。出于教育目的,扩展的代码:

def tic(board)
  # all the winning board positions for a player as bitmasks
  wins = [ 0b111_000_000,  # 448
           0b000_111_000,  #  56
           0b000_000_111,  #   7
           0b100_100_100,  # 292
           0b010_010_010,  # 146
           0b001_001_001,  #  73
           0b100_010_001,  # 273
           0b001_010_100 ] #  84

  [1, 2].find do |player| # find the player who's won
    # for the winning player, one of the win positions will be true for :
    wins.any? do |win|
      # make a bitmask from the current player's moves
      moves = board.inject(0) { |acc, square|
        # shift it to the left and add one if this square matches the player number
        (acc * 2) + ((square == player) ? 1 : 0)
      }
      # some logic evaluates to 0 if the moves match the win mask
      (win ^ moves) & win == 0
    end
  end || false # return false if the find returns nil (no winner)
end

我确信这可以缩短,尤其是大数组,可能还有用于获取玩家动作的位掩码的代码——三元让我烦恼—— -但我认为目前这已经相当不错了。

Ruby, 115 chars

Oops: Somehow I miscounted by a lot. This is actually 115 characters, not 79.

def t(b)[1,2].find{|p|[448,56,7,292,146,73,273,84].any?{|k|(k^b.inject(0){|m,i|m*2+((i==p)?1:0)})&k==0}}||false end

# Usage:
b = [ 1, 2, 1,
      0, 1, 2,
      1, 0, 2 ]
t(b) # => 1

b = [ 1, 1, 0,
      2, 2, 2,
      0, 2, 1 ]
t(b) # => 2

b = [ 0, 0, 1,
      2, 2, 0,
      0, 1, 1 ]
t(b) # => false

And the expanded code, for educational purposes:

def tic(board)
  # all the winning board positions for a player as bitmasks
  wins = [ 0b111_000_000,  # 448
           0b000_111_000,  #  56
           0b000_000_111,  #   7
           0b100_100_100,  # 292
           0b010_010_010,  # 146
           0b001_001_001,  #  73
           0b100_010_001,  # 273
           0b001_010_100 ] #  84

  [1, 2].find do |player| # find the player who's won
    # for the winning player, one of the win positions will be true for :
    wins.any? do |win|
      # make a bitmask from the current player's moves
      moves = board.inject(0) { |acc, square|
        # shift it to the left and add one if this square matches the player number
        (acc * 2) + ((square == player) ? 1 : 0)
      }
      # some logic evaluates to 0 if the moves match the win mask
      (win ^ moves) & win == 0
    end
  end || false # return false if the find returns nil (no winner)
end

I'm sure this could be shortened, especially the big array and possibly the code for getting a bitmask of the players's moves--that ternary bugs me--but I think this is pretty good for now.

年少掌心 2024-08-28 08:13:12

Perl, 76 char

sub W{$n=$u=0;map{$n++;$u|=$_[$_-$n]&$_[$_]&$_[$_+$n]for/./g}147,4,345,4;$u}

水平取胜有三种方法:

0,1,2   ==>   1-1, 1, 1+1
3,4,5   ==>   4-1, 4, 4+1
6,7,8   ==>   7-1, 7, 7+1

一种从左下到右上对角取胜的方法:

2,4,6   ==>   4-2, 4, 4+2

垂直取胜的三种方法:

0,3,6   ==>   3-3, 3, 3+3
1,4,7   ==>   4-3, 4, 4+3
2,5,8   ==>   5-3, 5, 5+3

从左上到右下对角取胜的一种方法:

0,4,8   ==>   4-4, 4, 4+4

阅读中间的列以获得魔力数字。

Perl, 76 char

sub W{$n=$u=0;map{$n++;$u|=$_[$_-$n]&$_[$_]&$_[$_+$n]for/./g}147,4,345,4;$u}

There are three ways to win horizontally:

0,1,2   ==>   1-1, 1, 1+1
3,4,5   ==>   4-1, 4, 4+1
6,7,8   ==>   7-1, 7, 7+1

One way to win diagonally from lower left to upper right:

2,4,6   ==>   4-2, 4, 4+2

Three ways to win vertically:

0,3,6   ==>   3-3, 3, 3+3
1,4,7   ==>   4-3, 4, 4+3
2,5,8   ==>   5-3, 5, 5+3

One way to win diagonally from upper left to lower right:

0,4,8   ==>   4-4, 4, 4+4

Read the middle columns to get the magic numbers.

对你再特殊 2024-08-28 08:13:12

Octave/Matlab,97 个字符,包括空格和换行符。如果没有获胜者,则输出 0;如果玩家 1 获胜,则输出 1;如果玩家 2 获胜,则输出 2;如果两个玩家都“获胜”,则输出 2.0801:

function r=d(b)
a=reshape(b,3,3)
s=prod([diag(a) diag(fliplr(a)) a a'])
r=sum(s(s==1|s==8))^(1/3)

如果我们更改规格并从一开始将 b 作为 3x3 矩阵传入,我们可以删除重塑线,将其减少到 80 个字符。

Octave/Matlab, 97 characters, including spaces and newlines. Outputs 0 if no winner, 1 if player 1 won, 2 if player 2 won, and 2.0801 if both players "won":

function r=d(b)
a=reshape(b,3,3)
s=prod([diag(a) diag(fliplr(a)) a a'])
r=sum(s(s==1|s==8))^(1/3)

If we change the specification and pass in b as a 3x3 matrix from the start, we can remove the reshape line, getting it down to 80 characters.

请恋爱 2024-08-28 08:13:12

因为正确玩时没有人会在 tictactoe 中获胜,我认为这是最短的代码

echo 0; 

7 个字符

更新:bash 的更好条目是这样的:

86 个字符或 81 个字符,不包括函数定义(win())。

win()for q in 1 28 55 3 12 21 4 20;{ [[ 3*w -eq B[f=q/8]+B[g=q%8]+B[g+g-f] ]]&&break;}

但是,这是来自 bash 中的 tic-tac-toe 程序的代码,因此它不太符合规范。

# player is passed in caller's w variable. I use O=0 and X=2 and empty=8 or 9
# if a winner is found, last result is true (and loop halts) else false
# since biggest test position is 7 I'll use base 8. could use 9 as well but 10 adds 2 characters to code length
# test cases are integers made from first 2 positions of each row
# eg. first row (0 1 2) is 0*8+1 = 1
# eg. diagonal (2 4 6) is 2*8+4 = 20
# to convert test cases to board positions use X/8, X%8, and X%8+(X%8-X/8)
# for each test case, test that sum of each tuplet is 3*player value

because nobody wins at tictactoe when properly played i think this is the shortest code

echo 0; 

7 chars

Update: A better entry for bash would be this:

86 characters or 81 excluding function definition(win()).

win()for q in 1 28 55 3 12 21 4 20;{ [[ 3*w -eq B[f=q/8]+B[g=q%8]+B[g+g-f] ]]&&break;}

But, This is code from by tic-tac-toe program in bash so it does not quite meet specification.

# player is passed in caller's w variable. I use O=0 and X=2 and empty=8 or 9
# if a winner is found, last result is true (and loop halts) else false
# since biggest test position is 7 I'll use base 8. could use 9 as well but 10 adds 2 characters to code length
# test cases are integers made from first 2 positions of each row
# eg. first row (0 1 2) is 0*8+1 = 1
# eg. diagonal (2 4 6) is 2*8+4 = 20
# to convert test cases to board positions use X/8, X%8, and X%8+(X%8-X/8)
# for each test case, test that sum of each tuplet is 3*player value
惜醉颜 2024-08-28 08:13:12

Ruby, 85 char

def X(b)
u=0
[2,6,7,8,9,13,21,-9].each do|c|u|=b[n=c/5+3]&b[n+c%5]&b[n-c%5]end
u
end

如果输入有两个玩家都获胜,例如,

     X | O | X
    ---+---+---
     X | O | O
    ---+---+---
     X | O | X

则输出为 3。

Ruby, 85 char

def X(b)
u=0
[2,6,7,8,9,13,21,-9].each do|c|u|=b[n=c/5+3]&b[n+c%5]&b[n-c%5]end
u
end

If the input has both players winning, e.g.

     X | O | X
    ---+---+---
     X | O | O
    ---+---+---
     X | O | X

then the output is 3.

我乃一代侩神 2024-08-28 08:13:12

Haskell,假设上面的幻方。 77 字符

77 排除导入和定义 b.

import Data.Bits
import Data.Array

b = listArray (0,8) [2,1,0,1,1,1,2,2,0]
w b = maximum[b!x.&.b!y.&.b!z|x<-[0..8],y<-[x+1..8],z<-[12-x-y],z<8,z>=0,z/=y]

或者 82 假设正常排序:

{-# LANGUAGE NoMonomorphismRestriction #-}
import Data.Bits
import Data.Array

b = listArray (0,8) [1,2,1,0,1,2,1,0,2]
w b = maximum[b!x.&.b!y.&.b!z|x<-[0..8],d<-[1..4],y<-[x+d],z<-[y+d],d/=2||x==2,z<9]

Haskell, Assuming the magic squares above. 77 Characters

77 excludes imports and defining b.

import Data.Bits
import Data.Array

b = listArray (0,8) [2,1,0,1,1,1,2,2,0]
w b = maximum[b!x.&.b!y.&.b!z|x<-[0..8],y<-[x+1..8],z<-[12-x-y],z<8,z>=0,z/=y]

Or 82 assuming the normal ordering:

{-# LANGUAGE NoMonomorphismRestriction #-}
import Data.Bits
import Data.Array

b = listArray (0,8) [1,2,1,0,1,2,1,0,2]
w b = maximum[b!x.&.b!y.&.b!z|x<-[0..8],d<-[1..4],y<-[x+d],z<-[y+d],d/=2||x==2,z<9]
莫多说 2024-08-28 08:13:12

C,99 个字符

不是赢家,但也许还有改进的空间。以前从未这样做过。原始概念,初稿。

#define l w|=*b&b[s]&b[2*s];b+=3/s;s
f(int*b){int s=4,w=0;l=3;l;l;l=2;--b;l=1;b-=3;l;l;return l;}

感谢 KennyTM 提供的一些想法和测试工具。

“开发版本”:

#define l w|=*b&b[s]&b[2*s];b+=3/s;s // check one possible win
f( int *b ) {
        int s=4,w=0; // s = stride, w = winner
        l=3;     // check stride 4 and set to 3
        l;l;l=2; // check stride 3, set to 2
        --b;l=1; // check stride 2, set to 1
        b-=3;l;l; return l; // check stride 1
}

C, 99 chars

Not a winner, but maybe there's room for improvement. Never did this before. Original concept, first draft.

#define l w|=*b&b[s]&b[2*s];b+=3/s;s
f(int*b){int s=4,w=0;l=3;l;l;l=2;--b;l=1;b-=3;l;l;return l;}

Thanks to KennyTM for a few ideas and the test harness.

The "development version":

#define l w|=*b&b[s]&b[2*s];b+=3/s;s // check one possible win
f( int *b ) {
        int s=4,w=0; // s = stride, w = winner
        l=3;     // check stride 4 and set to 3
        l;l;l=2; // check stride 3, set to 2
        --b;l=1; // check stride 2, set to 1
        b-=3;l;l; return l; // check stride 1
}
记忆里有你的影子 2024-08-28 08:13:12

(Iron)python,75 个字符

75 个字符代表一个完整的函数

T=lambda a:max(a[b/6]&a[b/6+b%6]&a[b/6+b%6*2]for b in[1,3,4,9,14,15,19,37])

66 个字符,如果你像其他人一样省略函数定义

r=max(a[b/6]&a[b/6+b%6]&a[b/6+b%6*2]for b in[1,3,4,9,14,15,19,37])

8 个不同的方向由起始值 + 增量器表示,压缩为可以使用除法提取的单个数字和模块。例如 2,5,8 = 2*6 + 3 = 15。

使用 & 检查一行是否包含三个相等的值。操作员。 (如果它们不相等,则结果为零)。 max 用于寻找可能的获胜者。

(Iron)python, 75 characters

75 characters for a full function

T=lambda a:max(a[b/6]&a[b/6+b%6]&a[b/6+b%6*2]for b in[1,3,4,9,14,15,19,37])

66 characters if you leave out the function definition like some others have done

r=max(a[b/6]&a[b/6+b%6]&a[b/6+b%6*2]for b in[1,3,4,9,14,15,19,37])

The 8 different directions are represented by starting value + incrementor, compressed into a single number that can be extracted using division and modula. For example 2,5,8 = 2*6 + 3 = 15.

Checking that a row contains three equal values is done using the & operator. (which results in zero if they aren't equal). max is used to find the possible winner.

情绪操控生活 2024-08-28 08:13:12

C 语言解决方案(162 个字符):

这利用了玩家一值 (1) 和玩家二值 (2) 具有独立位集的事实。因此,您可以将三个测试框的值按位与在一起 - 如果该值非零,则所有三个值必须相同。另外,结果值==获胜的玩家。

到目前为止,这不是最短的解决方案,而是我能做的最好的解决方案:

void fn(){
    int L[]={1,0,1,3,1,6,3,0,3,1,3,2,4,0,2,2,0};
    int s,t,p,j,i=0;
    while (s=L[i++]){
        p=L[i++],t=3;
        for(j=0;j<3;p+=s,j++)t&=b[p];
        if(t)putc(t+'0',stdout);}
}

更具可读性的版本:

void fn2(void)
{
    // Lines[] defines the 8 lines that must be tested
    //  The first value is the "Skip Count" for forming the line
    //  The second value is the starting position for the line
    int Lines[] = { 1,0, 1,3, 1,6, 3,0, 3,1, 3,2, 4,0, 2,2, 0 };

    int Skip, Test, Pos, j, i = 0;
    while (Skip = Lines[i++])
    {
        Pos = Lines[i++];   // get starting position
        Test = 3;           // pre-set to 0x03 (player 1 & 2 values bitwise OR'd together)

        // search each of the three boxes in this line
        for (j = 0; j < 3; Pos+= Skip, j++)
        {
            // Bitwise AND the square with the previous value
            //  We make use of the fact that player 1 is 0x01 and 2 is 0x02
            //  Therefore, if any bits are set in the result, it must be all 1's or all 2's
            Test &= b[Pos];
        }

        // All three squares same (and non-zero)?
        if (Test)
            putc(Test+'0',stdout);
    }
}

A solution in C (162 Characters):

This makes use of the fact that player one value (1) and player two value (2) have independent bits set. Therefore, you can bitwise AND the values of the three test boxes together-- if the value is nonzero, then all three values must be identical. In addition, the resulting value == the player that won.

Not the shortest solution so far, but the best I could do:

void fn(){
    int L[]={1,0,1,3,1,6,3,0,3,1,3,2,4,0,2,2,0};
    int s,t,p,j,i=0;
    while (s=L[i++]){
        p=L[i++],t=3;
        for(j=0;j<3;p+=s,j++)t&=b[p];
        if(t)putc(t+'0',stdout);}
}

A more readable version:

void fn2(void)
{
    // Lines[] defines the 8 lines that must be tested
    //  The first value is the "Skip Count" for forming the line
    //  The second value is the starting position for the line
    int Lines[] = { 1,0, 1,3, 1,6, 3,0, 3,1, 3,2, 4,0, 2,2, 0 };

    int Skip, Test, Pos, j, i = 0;
    while (Skip = Lines[i++])
    {
        Pos = Lines[i++];   // get starting position
        Test = 3;           // pre-set to 0x03 (player 1 & 2 values bitwise OR'd together)

        // search each of the three boxes in this line
        for (j = 0; j < 3; Pos+= Skip, j++)
        {
            // Bitwise AND the square with the previous value
            //  We make use of the fact that player 1 is 0x01 and 2 is 0x02
            //  Therefore, if any bits are set in the result, it must be all 1's or all 2's
            Test &= b[Pos];
        }

        // All three squares same (and non-zero)?
        if (Test)
            putc(Test+'0',stdout);
    }
}
小女人ら 2024-08-28 08:13:12

Python,102 个字符

由于您没有真正指定如何获取输入和输出,因此这是可能必须包装到函数中的“原始”版本。 b 是输入列表; r 是输出(0、1 或 2)。

r=0
for a,c in zip("03601202","11133342"):s=set(b[int(a):9:int(c)][:3]);q=s.pop();r=r if s or r else q

Python, 102 characters

Since you didn't really specify how to get input and output, this is the "raw" version that would perhaps have to be wrapped into a function. b is the input list; r is the output (0, 1 or 2).

r=0
for a,c in zip("03601202","11133342"):s=set(b[int(a):9:int(c)][:3]);q=s.pop();r=r if s or r else q
很酷不放纵 2024-08-28 08:13:12

Lua,130 个字符

130 个字符只是函数大小。如果没有找到匹配,该函数不返回任何内容,这在 Lua 中类似于返回 false。

function f(t)z={7,1,4,1,1,3,2,3,3}for b=1,#z-1 do
i=z[b]x=t[i]n=z[b+1]if 0<x and x==t[i+n]and x==t[i+n+n]then
return x end end end

assert(f{1,2,1,0,1,2,1,0,2}==1)
assert(f{1,2,1,0,0,2,1,0,2}==nil)
assert(f{1,1,2,0,1,2,1,0,2}==2)
assert(f{2,1,2,1,2,1,2,1,2}==2)
assert(f{2,1,2,1,0,2,2,2,1}==nil)
assert(f{1,2,0,1,2,0,1,2,0}~=nil)
assert(f{0,2,0,0,2,0,0,2,0}==2)
assert(f{0,2,2,0,0,0,0,2,0}==nil)

assert(f{0,0,0,0,0,0,0,0,0}==nil)
assert(f{1,1,1,0,0,0,0,0,0}==1)
assert(f{0,0,0,1,1,1,0,0,0}==1)
assert(f{0,0,0,0,0,0,1,1,1}==1)
assert(f{1,0,0,1,0,0,1,0,0}==1)
assert(f{0,1,0,0,1,0,0,1,0}==1)
assert(f{0,0,1,0,0,1,0,0,1}==1)
assert(f{1,0,0,0,1,0,0,0,1}==1)
assert(f{0,0,1,0,1,0,1,0,0}==1)

Lua, 130 characters

The 130 characters is the function size only. The function returns nothing if no match is found, which in Lua is similar to returning false.

function f(t)z={7,1,4,1,1,3,2,3,3}for b=1,#z-1 do
i=z[b]x=t[i]n=z[b+1]if 0<x and x==t[i+n]and x==t[i+n+n]then
return x end end end

assert(f{1,2,1,0,1,2,1,0,2}==1)
assert(f{1,2,1,0,0,2,1,0,2}==nil)
assert(f{1,1,2,0,1,2,1,0,2}==2)
assert(f{2,1,2,1,2,1,2,1,2}==2)
assert(f{2,1,2,1,0,2,2,2,1}==nil)
assert(f{1,2,0,1,2,0,1,2,0}~=nil)
assert(f{0,2,0,0,2,0,0,2,0}==2)
assert(f{0,2,2,0,0,0,0,2,0}==nil)

assert(f{0,0,0,0,0,0,0,0,0}==nil)
assert(f{1,1,1,0,0,0,0,0,0}==1)
assert(f{0,0,0,1,1,1,0,0,0}==1)
assert(f{0,0,0,0,0,0,1,1,1}==1)
assert(f{1,0,0,1,0,0,1,0,0}==1)
assert(f{0,1,0,0,1,0,0,1,0}==1)
assert(f{0,0,1,0,0,1,0,0,1}==1)
assert(f{1,0,0,0,1,0,0,0,1}==1)
assert(f{0,0,1,0,1,0,1,0,0}==1)
抱猫软卧 2024-08-28 08:13:12

Visual Basic 275 254(宽松打字)字符

 Function W(ByVal b())

    Dim r

    For p = 1 To 2

            If b(0) = b(1) = b(2) = p Then r = p
            If b(3) = b(4) = b(5) = p Then r = p
            If b(6) = b(7) = b(8) = p Then r = p
            If b(0) = b(3) = b(6) = p Then r = p
            If b(1) = b(4) = b(7) = p Then r = p
            If b(2) = b(5) = b(8) = p Then r = p
            If b(0) = b(4) = b(8) = p Then r = p
            If b(6) = b(4) = b(2) = p Then r = p

    Next

    Return r

End Function

Visual Basic 275 254 (with loose typing) characters

 Function W(ByVal b())

    Dim r

    For p = 1 To 2

            If b(0) = b(1) = b(2) = p Then r = p
            If b(3) = b(4) = b(5) = p Then r = p
            If b(6) = b(7) = b(8) = p Then r = p
            If b(0) = b(3) = b(6) = p Then r = p
            If b(1) = b(4) = b(7) = p Then r = p
            If b(2) = b(5) = b(8) = p Then r = p
            If b(0) = b(4) = b(8) = p Then r = p
            If b(6) = b(4) = b(2) = p Then r = p

    Next

    Return r

End Function
不知所踪 2024-08-28 08:13:12

JavaScript - 下面的函数“w”是 114 个字符

<html>   
<body>
<script type="text/javascript">

var t = [0,0,2,0,2,0,2,0,0];

function w(b){
    i = '012345678036147258048642';
    for (l=0;l<=21;l+=3){
        v = b[i[l]];
        if (v == b[i[l+1]]) if (v == b[i[l+2]]) return v;   
    }
}

alert(w(t));

</script>
</body>
</html>

JavaScript - function "w" below is 114 characters

<html>   
<body>
<script type="text/javascript">

var t = [0,0,2,0,2,0,2,0,0];

function w(b){
    i = '012345678036147258048642';
    for (l=0;l<=21;l+=3){
        v = b[i[l]];
        if (v == b[i[l+1]]) if (v == b[i[l+2]]) return v;   
    }
}

alert(w(t));

</script>
</body>
</html>
嘿看小鸭子会跑 2024-08-28 08:13:12

J,97 个字符。

1+1 i.~,+./"2>>(0 4 8,2 4 6,(],|:)3 3$i.9)&(e.~)&.>&.>(]<@:#"1~[:#:[:i.2^#)&.>(I.@(1&=);I.@(2&=))

我本来打算发布其工作原理的解释,但那是昨天的事,现在我无法阅读这段代码。

我们的想法是,我们创建一个包含所有可能获胜三元组的列表 (048,246,012,345,678,036,147,258),然后计算每个玩家拥有的方格的幂集,然后将两个列表相交。如果有比赛,那就是胜利者。

J, 97 characters.

1+1 i.~,+./"2>>(0 4 8,2 4 6,(],|:)3 3$i.9)&(e.~)&.>&.>(]<@:#"1~[:#:[:i.2^#)&.>(I.@(1&=);I.@(2&=))

I was planning to post an explanation of how this works, but that was yesterday and now I can't read this code.

The idea is we create a list of all possible winning triples (048,246,012,345,678,036,147,258), then make the powerset of the squares each player has and then intersect the two lists. If there's a match, that's the winner.

德意的啸 2024-08-28 08:13:12

Python - 75 个字符 (64)

我想出了 2 个表达式,每个 64 个字符:

max(a[c/8]&a[c/8+c%8]&a[c/8-c%8]for c in map(ord,'\t\33$#"!+9'))

max(a[c/5]&a[c/5+c%5]&a[c/5+c%5*2]for c in[1,3,4,8,12,13,16,31])

你添加“W=lambda b:”使其成为一个函数时,就会产生 75 个字符。
迄今为止最短的Python?

Python - 75 chars (64)

I came up with 2 expressions, each 64chars:

max(a[c/8]&a[c/8+c%8]&a[c/8-c%8]for c in map(ord,'\t\33$#"!+9'))

and

max(a[c/5]&a[c/5+c%5]&a[c/5+c%5*2]for c in[1,3,4,8,12,13,16,31])

When you add "W=lambda b:" to make it a function, that makes 75chars.
Shortest Python so far?

坏尐絯℡ 2024-08-28 08:13:12

Python,285 字节

b,p,q,r=["."]*9,"1","2",range
while"."in b:
 w=[b[i*3:i*3+3]for i in r(3)]+[b[i::3]for i in r(3)]+[b[::4],b[2:8:2]]
 for i in w[:3]:print i
 if["o"]*3 in w or["x"]*3 in w:exit(q)
 while 1:
  m=map(lambda x:x%3-x+x%3+7,r(9)).index(input())
  if"."==b[m]:b[m]=".xo"[int(p)];p,q=q,p;break

...哦,这不是你说的“Code Golf: Tic Tac Toe”的意思? ;)(输入小键盘数字来放置 x 或 o,即 7 是西北)

长版本

board = ["."]*9   # the board
currentname = "1" # the current player
othername = "2"   # the other player

numpad_dict = {7:0, 8:1, 9:2, # the lambda function really does this!
               4:3, 5:4, 6:5,
               1:6, 2:7, 3:8}

while "." in board:
    # Create an array of possible wins: horizontal, vertical, diagonal
    wins = [board[i*3:i*3+3] for i in range(3)] + \ # horizontal
           [board[i::3]      for i in range(3)] + \ # vertical
           [board[::4], board[2:8:2]]               # diagonal

    for i in wins[:3]: # wins contains the horizontals first,
        print i        # so we use it to print the current board

    if ["o"]*3 in wins or ["x"]*3 in wins: # somebody won!
        exit(othername)                    # print the name of the winner
                                           # (we changed player), and exit
    while True: # wait for the player to make a valid move
        position = numpad_dict[input()] 
        if board[position] == ".": # still empty -> change board
            if currentname == "1":
                board[position] = "x"
            else:
                board[position] = "o"
            currentname, othername = othername, currentname # swap values

Python, 285 bytes

b,p,q,r=["."]*9,"1","2",range
while"."in b:
 w=[b[i*3:i*3+3]for i in r(3)]+[b[i::3]for i in r(3)]+[b[::4],b[2:8:2]]
 for i in w[:3]:print i
 if["o"]*3 in w or["x"]*3 in w:exit(q)
 while 1:
  m=map(lambda x:x%3-x+x%3+7,r(9)).index(input())
  if"."==b[m]:b[m]=".xo"[int(p)];p,q=q,p;break

...Oh, this wasn't what you meant when you said "Code Golf: Tic Tac Toe"? ;) (enter numpad numbers to place x's or o's, i.e. 7 is north-west)

Long Version

board = ["."]*9   # the board
currentname = "1" # the current player
othername = "2"   # the other player

numpad_dict = {7:0, 8:1, 9:2, # the lambda function really does this!
               4:3, 5:4, 6:5,
               1:6, 2:7, 3:8}

while "." in board:
    # Create an array of possible wins: horizontal, vertical, diagonal
    wins = [board[i*3:i*3+3] for i in range(3)] + \ # horizontal
           [board[i::3]      for i in range(3)] + \ # vertical
           [board[::4], board[2:8:2]]               # diagonal

    for i in wins[:3]: # wins contains the horizontals first,
        print i        # so we use it to print the current board

    if ["o"]*3 in wins or ["x"]*3 in wins: # somebody won!
        exit(othername)                    # print the name of the winner
                                           # (we changed player), and exit
    while True: # wait for the player to make a valid move
        position = numpad_dict[input()] 
        if board[position] == ".": # still empty -> change board
            if currentname == "1":
                board[position] = "x"
            else:
                board[position] = "o"
            currentname, othername = othername, currentname # swap values
贪恋 2024-08-28 08:13:12

我确信有一种更短的方法可以做到这一点,但是...... Perl,141 个字符(函数内有 134 个字符)

sub t{$r=0;@b=@_;@w=map{[split//]}split/,/,"012,345,678,036,147,258,048,246";for(@w){@z=map{$b[$_]}@$_;$r=$z[0]if!grep{!$_||$_!=$z[0]}@z;}$r;}

I'm sure there's a shorter way to do this but... Perl, 141 characters (134 inside the function)

sub t{$r=0;@b=@_;@w=map{[split//]}split/,/,"012,345,678,036,147,258,048,246";for(@w){@z=map{$b[$_]}@$_;$r=$z[0]if!grep{!$_||$_!=$z[0]}@z;}$r;}
青芜 2024-08-28 08:13:12

c -- 144 个字符

缩小:

#define A(x) a[b[x%16]]
int c,b[]={4,8,0,1,2,4,6,0,3,4,5,2,8,6,7,2};int
T(int*a){for(c=0;c<16;c+=2)if(A(c)&A(c+1)&A(c+2))return A(c);return 0;}

两者都返回计数(一个是必需的,另一个需要用空格替换)。

从偶数位置开始并取模 16 的八种获胜方式的数组代码。

埃里克·皮


更易读的形式:

#define A(x) a[b[x%16]]

// Compact coding of the ways to win.
//
// Each possible was starts a position N*2 and runs through N*2+2 all
// taken mod 16
int c,b[]={4,8,0,1,2,4,6,0,3,4,5,2,8,6,7,2};

int T(int*a){
  // Loop over the ways to win
  for(c=0;c<16;c+=2)
    // Test for a win
    if(A(c)&A(c+1)&A(c+2))return A(c);
  return 0;
}

测试脚手架:

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

int T(int*);

int main(int argc, char**argv){
  int input[9]={0};
  int i, j;
  for (i=1; i<argc; ++i){
    input[i-1] = atoi(argv[i]);
  };
  for (i=0;i<3;++i){
    printf("%1i  %1i  %1i\n",input[3*i+0],input[3*i+1],input[3*i+2]);
  };
  if (i = T(input)){
    printf("%c wins!\n",(i==1)?'X':'O');
  } else {
    printf("No winner.\n");
  }
  return 0;
}

c -- 144 characters

Minified:

#define A(x) a[b[x%16]]
int c,b[]={4,8,0,1,2,4,6,0,3,4,5,2,8,6,7,2};int
T(int*a){for(c=0;c<16;c+=2)if(A(c)&A(c+1)&A(c+2))return A(c);return 0;}

Both returns count (one necessary and the other would need replacing with a space).

The array codes for the eight ways to win in triplets starting from even positions and taken mod 16.

Bitwise and trick stolen from Eric Pi.


More readable form:

#define A(x) a[b[x%16]]

// Compact coding of the ways to win.
//
// Each possible was starts a position N*2 and runs through N*2+2 all
// taken mod 16
int c,b[]={4,8,0,1,2,4,6,0,3,4,5,2,8,6,7,2};

int T(int*a){
  // Loop over the ways to win
  for(c=0;c<16;c+=2)
    // Test for a win
    if(A(c)&A(c+1)&A(c+2))return A(c);
  return 0;
}

Testing scaffold:

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

int T(int*);

int main(int argc, char**argv){
  int input[9]={0};
  int i, j;
  for (i=1; i<argc; ++i){
    input[i-1] = atoi(argv[i]);
  };
  for (i=0;i<3;++i){
    printf("%1i  %1i  %1i\n",input[3*i+0],input[3*i+1],input[3*i+2]);
  };
  if (i = T(input)){
    printf("%c wins!\n",(i==1)?'X':'O');
  } else {
    printf("No winner.\n");
  }
  return 0;
}
暖树树初阳… 2024-08-28 08:13:12

也许可以做得更好,但我现在感觉不是特别聪明。这只是为了确保 Haskell 得到代表......

假设 b 已经存在,这会将结果放入 w 中。

import List
a l=2*minimum l-maximum l
z=take 3$unfoldr(Just .splitAt 3)b
w=maximum$0:map a(z++transpose z++[map(b!!)[0,4,8],map(b!!)[2,4,6]])

假设输入来自 stdin 并输出到 stdout,

import List
a l=2*minimum l-maximum l
w b=maximum$0:map a(z++transpose z++[map(b!!)[0,4,8],map(b!!)[2,4,6]])where
 z=take 3$unfoldr(Just .splitAt 3)b
main=interact$show.w.read

Probably could be made better, but I'm not feeling particularly clever right now. This is just to make sure Haskell gets represented...

Assuming that b already exists, this will put the result in w.

import List
a l=2*minimum l-maximum l
z=take 3$unfoldr(Just .splitAt 3)b
w=maximum$0:map a(z++transpose z++[map(b!!)[0,4,8],map(b!!)[2,4,6]])

Assuming input from stdin and output to stdout,

import List
a l=2*minimum l-maximum l
w b=maximum$0:map a(z++transpose z++[map(b!!)[0,4,8],map(b!!)[2,4,6]])where
 z=take 3$unfoldr(Just .splitAt 3)b
main=interact$show.w.read
最美不过初阳 2024-08-28 08:13:12

C#,180 个字符:

var s=new[]{0,0,0,1,2,2,3,6};
var t=new[]{1,3,4,3,2,3,1,1};
return(s.Select((p,i)=>new[]{g[p],g[p+t[i]],g[p+2*t[i]]}).FirstOrDefault(l=>l.Distinct().Count()==1)??new[]{0}).First();

g 是网格)

可能需要改进...我仍在努力;)

C#, 180 characters :

var s=new[]{0,0,0,1,2,2,3,6};
var t=new[]{1,3,4,3,2,3,1,1};
return(s.Select((p,i)=>new[]{g[p],g[p+t[i]],g[p+2*t[i]]}).FirstOrDefault(l=>l.Distinct().Count()==1)??new[]{0}).First();

(g being the grid)

Could probably be improved... I'm still working on it ;)

心不设防 2024-08-28 08:13:12

Python,140 个字符

我的第一个高尔夫代码,重达 140 个字符(导入声明,我否认你!):

import operator as o

def c(t):return({1:1,8:2}.get(reduce(o.mul,t[:3]),0))
def g(t):return max([c(t[x::y]) for x,y in zip((0,0,0,1,2,2,3,6),(1,3,4,3,3,2,1,1))])

稍微不那么晦涩 g:

def g(t):return max([c(t[x::y]) for x,y in [[0,1],[0,3],[0,4],[1,3],[2,3],[2,2],[3,1],[6,1]]])

Python, 140 chars

My first code golf, weighing in at a hefty 140 chars (import statement, I deny you!):

import operator as o

def c(t):return({1:1,8:2}.get(reduce(o.mul,t[:3]),0))
def g(t):return max([c(t[x::y]) for x,y in zip((0,0,0,1,2,2,3,6),(1,3,4,3,3,2,1,1))])

Slightly less obscure g:

def g(t):return max([c(t[x::y]) for x,y in [[0,1],[0,3],[0,4],[1,3],[2,3],[2,2],[3,1],[6,1]]])
风筝有风,海豚有海 2024-08-28 08:13:12

C# 解决方案。

将每行、列和列中的值相乘对角线。如果结果 == 1,则 X 获胜。如果结果 == 8,O 获胜。

int v(int[] b)
{
    var i = new[] { new[]{0,1,2}, new[]{3,4,5}, new[]{6,7,8}, new[]{0,3,6}, new[]{1,4,7}, new[]{2,5,8}, new[]{0,4,8}, new[]{2,4,6} };
    foreach(var a in i)
    {
        var n = b[a[0]] * b[a[1]] * b[a[2]];
        if(n==1) return 1;
        if(n==8) return 2;
    }
    return 0;
}

C# Solution.

Multiply the values in each row, col & diagonal. If result == 1, X wins. If result == 8, O wins.

int v(int[] b)
{
    var i = new[] { new[]{0,1,2}, new[]{3,4,5}, new[]{6,7,8}, new[]{0,3,6}, new[]{1,4,7}, new[]{2,5,8}, new[]{0,4,8}, new[]{2,4,6} };
    foreach(var a in i)
    {
        var n = b[a[0]] * b[a[1]] * b[a[2]];
        if(n==1) return 1;
        if(n==8) return 2;
    }
    return 0;
}
凤舞天涯 2024-08-28 08:13:12

C#,154 163 170 177 个字符

借鉴其他提交的一些技术。
(不知道 C# 可以让你这样初始化数组)

static int V(int[] b)
{
   int[] a={0,1,3,1,6,1,0,3,1,3,2,3,0,4,2,2};
   int r=0,i=-2;
   while((i+=2)<16&&(r|=b[a[i]]&b[a[i]+a[i+1]]&b[a[i]+a[i+1]*2])==0){}
   return r;
}

C#, 154 163 170 177 characters

Borrowing a couple of techniques from other submissions.
(didn't know C# let you init arrays like that)

static int V(int[] b)
{
   int[] a={0,1,3,1,6,1,0,3,1,3,2,3,0,4,2,2};
   int r=0,i=-2;
   while((i+=2)<16&&(r|=b[a[i]]&b[a[i]+a[i+1]]&b[a[i]+a[i+1]*2])==0){}
   return r;
}
青衫负雪 2024-08-28 08:13:12

C、113个字符

f(int*b){char*s="012345678036147258048264\0";int r=0;while(!r&&*s){int q=r=3;while(q--)r&=b[*s++-'0'];}return r;}

我觉得可行吗?我的第一个代码高尔夫,温柔点。

每 3 位数字编码 3 个需要匹配的单元格。内部 while 检查黑社会。外部 while 检查所有 8 个。

C, 113 characters

f(int*b){char*s="012345678036147258048264\0";int r=0;while(!r&&*s){int q=r=3;while(q--)r&=b[*s++-'0'];}return r;}

I think it works? My first code golf, be gentle.

Every 3 digits encodes 3 cells that need to match. The inner while checks a triad. The outer while checks all 8.

~没有更多了~
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