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《背包问题》 动态规划
问题描述: 思路分析: 编写程序: show you code...
分类:其他好文   时间:2014-06-07 02:06:34    阅读次数:245
CentOS Linux Install Core Development
How do I install all developer tools such as GNU GCC C/C++ compilers, make and others, after installing CentOS from a shell prompt?you can following the nest line do ,install almost all development to...
分类:系统相关   时间:2014-06-07 01:23:47    阅读次数:317
Leetcode--Best Time to Buy and Sell Stock III
Problem Description: Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transa...
分类:其他好文   时间:2014-06-05 09:33:52    阅读次数:342
ubuntu 安装ssh
Ubuntu 安装oepnssh 报错 有时候由于linux版本不够新,或者安装的包不知是什么原因坏了。报如下错误 unable to correct the problems, you have held broken prckages 可以用如下命令解决 sudo apt-get autoclean sudo apt-get autoremov...
分类:其他好文   时间:2014-06-05 09:31:23    阅读次数:174
LeetCode: Climbing Stairs [070]
【题目】 You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top? 【题意】 有个梯子有n阶,每次只能爬1阶或者2阶,为爬到梯子顶共有多少种爬法 【思路】 依次确定跳到每一阶上的爬法数目 这其实是一...
分类:其他好文   时间:2014-06-05 07:16:08    阅读次数:203
centOS下进入mysql报错-You must SET PASSWORD before executing this statement
解决办法: mysql>  SET PASSWORD = PASSWORD('123456'); Query OK, 0 rows affected (0.03 sec) mysql> create database roger; Query OK, 1 row affected (0.00 sec) 也就是用mysql>  SET PASSWORD = PASSWORD('123456...
分类:数据库   时间:2014-06-05 00:19:53    阅读次数:294
QDeclarativeItem学习笔记
最近在用QDeclarativeItem的继承来做Qt界面的控件,一开始发现怎么样也没法自动调用paint函数,后来查看了资料,发现如下字句: You can subclass QDeclarativeItem to provide your own custom visual item that inherits these features. Note that, because it ...
分类:其他好文   时间:2014-06-04 23:47:17    阅读次数:511
LeetCode: Text Justification [068]
【题目】 Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified. You should pack your words in a greedy approach; that is, pack as many words as you can in each line. Pad ...
分类:其他好文   时间:2014-06-04 22:37:46    阅读次数:389
zoj 2676 Network Wars(最小割,01分数规划)
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=2676 大致题意:给出一个带权无向图,每条边有一个边权wi,求将S和T分开的一个割边集C,使得该割边集的平均边权最小,即最小化∑wi / |C| 。 详见amber关于最小割模型的论文 思路:amber论文中详细讲解了如何转化成函数及建图,值得注...
分类:Web程序   时间:2014-06-04 21:40:43    阅读次数:401
NYOJ43 24 Point game 【回溯】
24 Point game 时间限制:3000 ms  |  内存限制:65535 KB 难度:5 描述 There is a game which is called 24 Point game. In this game , you will be given some numbers. Your task is to find an expressi...
分类:其他好文   时间:2014-06-04 21:06:57    阅读次数:295
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