Lucky 2048 - The secret of being lucky
Lucky 2048 uses a normal distribution to create "lucky" start. Generally speaking, it provides lucky chances "most likely to be medium result, and very small probability to get very good results".
Toll edition: μ = 7.0, σ = 1.0, probability = 0.0014 mathmatical expectation = 714. You can expect one 1024 from the very beginning with 714 attempts.
Free edition: μ = 6.0, σ = 1.0, probability = 0.000036 mathmatical expectation = 27777. You can expect one 1024 from the very beginning with 27777 attempts.
Actually I set μ to 8.0 in testing - then I realized that it may be toooo lucky and make it less surprising. When μ = 8.0, you can get 1024 from the very beginning within 40 attempts.
Finally this is the secret - Buy the toll edition and try more and more and more ...
Lucky 2048 - The secret of being lucky的更多相关文章
- HDU 5213 Lucky 莫队+容斥
Lucky Problem Description WLD is always very lucky.His secret is a lucky number K.k is a fixed odd n ...
- Lucky HDU - 5213 (莫队,容斥)
WLD is always very lucky.His secret is a lucky number . is a fixed odd number. Now he meets a strang ...
- lucky 的 时光助理(2)
lucky小姐说:昨天晚上他喝醉了,发消息说他想我了,说他后悔了. 我很惊讶. 我问lucky:你们很久都没有联系, 突然说... 你怎么想. 没错,'他'就是lucky的前男友. lucky看着我, ...
- CF109 C. Lucky Tree 并查集
Petya loves lucky numbers. We all know that lucky numbers are the positive integers whose decimal re ...
- SCU3502 The Almost Lucky Number
Description A lucky number is a number whose decimal representation contains only the digits \(4\) a ...
- CodeForces 146E - Lucky Subsequence DP+扩展欧几里德求逆元
题意: 一个数只含有4,7就是lucky数...现在有一串长度为n的数...问这列数有多少个长度为k子串..这些子串不含两个相同的lucky数... 子串的定义..是从这列数中选出的数..只要序号不同 ...
- 运lucky
运 [问题背景] zhx 和妹子们玩数数游戏. [问题描述] 仅包含 4 或7 的数被称为幸运数. 一个序列的子序列被定义为从序列中删去若干个数, 剩下的数组成的新序列. 两个子序列被定义为不同的当且 ...
- 『NYIST』第九届河南省ACM竞赛队伍选拔赛[正式赛二]- Nearly Lucky Number(Codeforces Beta Round #84 (Div. 2 Only)A. Nearly)
A. Nearly Lucky Number time limit per test 2 seconds memory limit per test 256 megabytes input stand ...
- B - Nearly Lucky Number
Problem description Petya loves lucky numbers. We all know that lucky numbers are the positive integ ...
随机推荐
- js基本类型 引用类型
参考 https://segmentfault.com/a/1190000005794070 http://blog.csdn.net/yummy_go/article/details/5050468 ...
- 【LeetCode】#1 Two Sum
[Question] Given an array of integers, return indices of the two numbers such that they add up to a ...
- Winform 文本框多线程赋值
delegate void SetTextCallback(string text); private void showClientMsg(string text) { // InvokeRequi ...
- 会计凭证BAPI_ACC_DOCUMENT_POST
*&---------------------------------------------------------------------* *& Report ZFIFB107 ...
- synchronized和ReentrantLock
一.什么是sychronized sychronized是java中最基本同步互斥的手段,可以修饰代码块,方法,类. 在修饰代码块的时候需要一个reference对象作为锁的对象. 在修饰方法的时候默 ...
- 第一章 UI实战开发 UIWindow UIView
@import url(http://i.cnblogs.com/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/c ...
- iOS沙盒(sandbox)
iOS沙盒 每个ios应用都有自己的应用沙盒,应用沙盒就是文件系统目录,默认下iOS应用只能访问自己的沙盒 extenaion是iOS8新开放的一种对几个固定系统区域的扩展机制,它可以在一定程度上弥补 ...
- HDFS副本存放策略
在client向DataNode写入block之前,会与NameNode有一次通信,由NameNode来选择指定数目的DataNode来存放副本.具体的副本选择策略在BlockPlacementPol ...
- μC/OS-Ⅲ系统的任务切换和任务调度
一.任务切换 在操作系统中当任务需要从一个任务切换到另外一个任务时,要将当前任务的现场保存到当前任务的堆栈中(当前任务现场主要指CPU相关寄存器),然后回复新任务的现场并执行新任务.这个叫做上下文切换 ...
- Android中Activity的生命周期
简介: 这个基本是必问的问题了,说一下你对Activity生命周期的理解,呵呵… onCreate, onStart, onResume, onPause, onStop, onDestroy, on ...