设计一个shuffle card 用了java. Random Class package Random; import java.util.*; public class Solution { static int cardNum = 10; public int[] shuffle(int[] cards) { //ArrayList<Integer> res = new ArrayList<Integer>(); Random rnd = new Random(); for(…

18.2 Write a method to shuffle a deck of cards. It must be a perfect shuffle—in other words, each of the 52! permutations of the deck has to be equally likely. Assume that you are given a random number generator which is perfect. 这道题让我们实现一个洗牌的算法,实际上洗…

最初给牌编号时,编号的顺序是从下到上:洗牌时,认牌的顺序是从上到下.注意使用循环是尽量统一“i”的初始化值,都为“0”或者都为“1”,限界条件统一使用“<”或者“<=”. POJ - 1978 Hanafuda Shuffle Time Limit: 1000MS Memory Limit: 30000KB 64bit IO Format: %I64d & %I64u Description There are a number of ways to shuffle a deck of…

Poker Shuffle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 226    Accepted Submission(s): 78 Problem Description Jason is not only an ACMer, but also a poker nerd. He is able to do a perfect…

J. Deck Shuffling Time Limit: 2   Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100187/problem/J Description The world famous scientist Innokentiy continues his innovative experiments with decks of cards. Now he has a deck of n cards and k…

Poker Shuffle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 95    Accepted Submission(s): 24 Problem Description Jason is not only an ACMer, but also a poker nerd. He is able to do a perfect s…

课程全名:An Introduction to Interactive Programming in Python,来自 Rice University 授课教授:Joe Warren, Scott Rixner, John Greiner, Stephen Wong 工具:http://www.codeskulptor.org/, simplegui 模块 第6周讲述: 1. OO面向对象编程.走向更高级. Python中一切皆是对象,通过对象的属性(变量.attribute)和行为(方法.m…

题目意思很简单. 就是洗牌,抽出奇数和偶数,要么奇数放前面,要么偶数放前面. 总共2^N张牌. 需要问的是,给了A X B Y  问经过若干洗牌后,第A个位置是X,第B个位置是Y 是不是可能的. Jason is not only an ACMer, but also a poker nerd. He is able to do a perfect shuffle. In a perfect shuffle, the deck containing K cards, where K is an…

控制台程序. public enum Rank { TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING, ACE } public enum Suit { CLUBS, DIAMONDS, HEARTS, SPADES } public class Card implements Comparable<Card> { public Card(Rank rank, Suit suit) { this.ra…

第i个元素和index在[i,length-1]之间的一个数随机交换 package Hard; import CtCILibrary.AssortedMethods; /** * * Write a method to shuffle a deck of cards. It must be a perfect shuffle - in other words, each 52! permutations of the deck has to be equally likely. Assume…