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HDU 4869 Turn the pokers(推理)
HDU 4869 Turn the pokers 题目链接 题意:给定n个翻转扑克方式,每次方式相应能够选择当中xi张进行翻转。一共同拥有m张牌。问最后翻转之后的情况数 思路:对于每一些翻转,假设能确定终于正面向上张数的情况,那么全部的情况就是全部情况的C(m, 张数)之和。那么这个张数进行推理会发
分类:其他好文   时间:2016-01-28 20:55:06    阅读次数:196
[Redux] Extracting Presentational Components -- TodoApp
Finally, I just noticed that the to-do app component doesn't actually have to be a class. I can turn it into a function. I prefer to-do that when poss
分类:移动开发   时间:2016-01-27 21:24:08    阅读次数:269
Bulb Switcher (leetcode java)
问题描述:There are n bulbs that are initially off. You first turn on all the bulbs. Then, you turn off every second bulb. On the third round, you toggle e...
分类:编程语言   时间:2016-01-27 12:29:16    阅读次数:343
android设置圆角矩形
1.添加资源文件//res/drawable/bg_btn_round_corner.xml 得到的预览图如下:由于上面还使用了gradient属性,所以solid属性并不起作用。如果内部是纯色的可以只配置solid属性。gradient表示的渐变效果。2.在布局文件当...
分类:移动开发   时间:2016-01-08 00:25:15    阅读次数:318
[LeetCode]题解(python):062 Unique path
题目来源https://leetcode.com/problems/unique-paths/A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot c...
分类:编程语言   时间:2016-01-01 18:43:38    阅读次数:193
LeetCode - Unique Paths
题目:A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).The robot can only move either down or right at any...
分类:其他好文   时间:2015-12-30 07:00:11    阅读次数:151
ORA-38760: This database instance failed to turn on flashback database 第三篇
ORA-38760: This database instance failed to turn on flashback database 第三篇第一篇第二篇问题现象: 在数据库alert告警日志中看见例如以下信息:Completed: ALTER DATABASE MOUNTWed Nov .....
分类:数据库   时间:2015-12-29 21:03:51    阅读次数:201
Leetcode: Range Sum Query 2D - Immutable
Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2...
分类:其他好文   时间:2015-12-29 10:01:33    阅读次数:137
jqueryMobile模块整理—图标(icons)
1、以下各种为icon特有属性,使用方法及效果如图(图示红线部分为特殊样式)。添加.ui-corner-all类显示圆角添加.ui-shadow类显示阴影添加.ui-btn-icon-notext类去除按钮文本添加.ui-alt-icon类可显示黑色icon添加.ui-shadow-icon类给添加...
分类:Web程序   时间:2015-12-25 11:32:35    阅读次数:386
Leetcode 319. Bulb Switcher
这是一个非常巧妙的题目,网站称之为brain teaser,意思就是代码写起来会非常简介(就是逗你玩:)),题目如下:There arenbulbs that are initially off. You first turn on all the bulbs. Then, you turn off...
分类:其他好文   时间:2015-12-23 22:49:19    阅读次数:187
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