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freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/rosetta-code/deal-cards-for-freecell.md

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---
id: 59694356a6e7011f7f1c5f4e
title: FreeCell的交易卡
challengeType: 5
videoUrl: ''
dashedName: deal-cards-for-freecell
---
# --description--
<p> Free Cell是Paul Alfille在1978年向PLATO系统推出的单人纸牌游戏。微软的Jim Horne将名称更改为FreeCell并重新实现了<a href='http://rosettacode.org/wiki/DOS' title='DOS'>DOS</a>游戏,然后是<a href='http://rosettacode.org/wiki/Windows' title='视窗'>Windows</a>游戏。 </p><p>这个版本引入了32000个编号的交易。 <a href='http://www.solitairelaboratory.com/fcfaq.html' title='链接http//www.solitairelaboratory.com/fcfaq.html'>FreeCell FAQ</a>讲述了这段历史。) </p><p>随着游戏的流行Jim Horne披露<a href='http://www.solitairelaboratory.com/mshuffle.txt' title='链接http//www.solitairelaboratory.com/mshuffle.txt'>了这种算法</a> FreeCell的其他实现开始重现微软的交易。 </p><p>这些交易编号从1到32000。 </p><p>微软的新版本有100万笔交易编号从1到1000000;某些实现允许该范围之外的数字。 </p><p>该算法使用Microsoft C的这种<a href='http://rosettacode.org/wiki/linear congruential generator' title='线性同余发生器'>线性同余生成器</a> </p> $ state\_ {n + 1} \\ equiv 214013 \\ times state_n + 2531011 \\ pmod {2 ^ {31}} $ $ rand_n = state_n \\ div 2 ^ {16} $ $ rand_n $的范围是0到32767。 <p>该算法如下: </p>使用交易编号为RNG播种。创建一个由52张牌组成的<a href='http://rosettacode.org/wiki/array' title='排列'>阵列</a> 俱乐部的王牌钻石王牌心中的王牌黑桃王牌2个俱乐部2个钻石等等等等Ace2,3,4,5,6 7,8,9,10杰克女王国王。数组索引为0到51其中俱乐部的Ace为0黑桃之王为51.直到数组为空在索引≡下一个随机数mod数组长度中选择随机卡。将此随机卡与阵列的最后一张卡交换。从阵列中删除此随机卡。 数组长度减少1.处理此随机卡。交易所有52张牌面朝上横跨8列。前8张牌分为8列后8张牌分为8张依此类推。例 <p>订购交易卡</p><p></p><pre> 1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
49 50 51 52 </pre><p></p><p>游戏1 </p><p></p><pre> [
['JD''2D''9H''JC''5D''7H''7C''5H']
['KD''KC''9S''5S''AD''QC''KH''3H']
['2S''KS''9D''QD''JS''AS''AH''3C']
['4C''5C''TS''QH''4H''AC''4D''7S']
['3S''TD''4S''TH''8H''2C''JH''7D']
['6D''8S''8D''QS''6C''3D''8C''TC']
['6S''9C''2H''6H']
] </pre><p></p><p>游戏617 </p><p></p><pre> [
['7D''AD''5C''3S''5S''8C''2D''AH']
['TD''7S''QD''AC''6D''8H''AS''KH']
['TH''QC''3H''9D''6S''8D''3D''TC']
['KD''5H''9S''3C''8S''7H''4D''JS']
['4C''QS''9C''9H''7C''6H''2C''2S']
['4S''TS''2H''5D''JC''6C''JH''QH']
['JD''KS''KC''4H']
] </pre><p></p>任务: <p>编写一个函数来获取交易编号并按照与此算法相同的顺序处理卡。 </p><p>该函数必须返回表示FreeCell板的二维数组。 </p><p>还可以针对<a href='http://freecellgamesolutions.com/' title='链接http//freecellgamesolutions.com/'>1000000游戏的FreeCell解决方案</a>检查交易。 </p><p> (召唤一个视频解决方案,它会显示初始交易。) </p>
# --hints--
`dealFreeCell`是一个功能。
```js
assert(typeof dealFreeCell === 'function');
```
`dealFreeCell(seed)`应该返回一个对象。
```js
assert(typeof dealFreeCell(1) === 'object');
```
`dealFreeCell(seed)`应该返回一个长度为7的数组。
```js
assert(dealFreeCell(1).length === 7);
```
`dealFreeCell(1)`应该返回一个与示例“Game1”相同的数组
```js
assert.deepEqual(dealFreeCell(1), game1);
```
`dealFreeCell(617)`应该返回一个与示例“Game617”相同的数组
```js
assert.deepEqual(dealFreeCell(617), game617);
```
# --seed--
## --after-user-code--
```js
const replaceThis = 3;
const game1 = [
['JD', '2D', '9H', 'JC', '5D', '7H', '7C', '5H'],
['KD', 'KC', '9S', '5S', 'AD', 'QC', 'KH', '3H'],
['2S', 'KS', '9D', 'QD', 'JS', 'AS', 'AH', '3C'],
['4C', '5C', 'TS', 'QH', '4H', 'AC', '4D', '7S'],
['3S', 'TD', '4S', 'TH', '8H', '2C', 'JH', '7D'],
['6D', '8S', '8D', 'QS', '6C', '3D', '8C', 'TC'],
['6S', '9C', '2H', '6H']
];
const game617 = [
['7D', 'AD', '5C', '3S', '5S', '8C', '2D', 'AH'],
['TD', '7S', 'QD', 'AC', '6D', '8H', 'AS', 'KH'],
['TH', 'QC', '3H', '9D', '6S', '8D', '3D', 'TC'],
['KD', '5H', '9S', '3C', '8S', '7H', '4D', 'JS'],
['4C', 'QS', '9C', '9H', '7C', '6H', '2C', '2S'],
['4S', 'TS', '2H', '5D', 'JC', '6C', 'JH', 'QH'],
['JD', 'KS', 'KC', '4H']
];
```
## --seed-contents--
```js
function dealFreeCell(seed) {
return true;
}
```
# --solutions--
```js
// RNG
function FreeCellRNG(seed) {
return {
lastNum: seed,
next() {
this.lastNum = ((214013 * this.lastNum) + 2531011) % (Math.pow(2, 31));
return this.lastNum >> 16;
}
};
}
// Get cards
function getDeck() {
const ranks = ['A', '2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K'];
const suits = ['C', 'D', 'H', 'S'];
const cards = [];
for (let i = 0; i < ranks.length; i += 1) {
for (let j = 0; j < suits.length; j += 1) {
cards.push(`${ranks[i]}${suits[j]}`);
}
}
return cards;
}
function dealFreeCell(seed) {
const rng = FreeCellRNG(seed);
const deck = getDeck();
const deltCards = [[], [], [], [], [], [], []];
let currentColumn = 0;
let currentRow = 0;
let rand;
let temp;
let card;
while (deck.length > 0) {
// Choose a random card
rand = rng.next() % deck.length;
// Swap this random card with the last card in the array
temp = deck[deck.length - 1];
deck[deck.length - 1] = deck[rand];
deck[rand] = temp;
// Remove this card from the array
card = deck.pop();
// Deal this card
deltCards[currentRow].push(card);
currentColumn += 1;
if (currentColumn === 8) {
currentColumn = 0;
currentRow += 1;
}
}
return deltCards;
}
```