C. Sagheer and Nubian Market time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and relat…

B. Sagheer, the Hausmeister time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Some people leave the lights at their workplaces on when they leave that is a waste of resources. As a hausmeiste…

A. Sagheer and Crossroads time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Sagheer is walking in the street when he comes to an intersection of two roads. Each road can be represented as two…

Python有专门的time模块可以供调用. <span style="font-size:14px;">import time print time.time()</span> 输出如下 但是这样我们都看不出时间是什么意思,下面,我们可以用time模块提供的 time.localtime 来实现时间的格式化: 如图: 但这样还不是我想要的输出,最后用time.strftime()方法,把刚才的一大串信息格式化成我想要的格式:如图: time.strftime里…

Easy Summation                                                             Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)                                                                                          …

触发器我就不多解释了,保证数据的完整性的神器,嗯..也是减少程序员工作托管给数据库操作的好帮手.就不讲一些大道理了.通俗点,我们对数据库的操作,无非就是增 删 改 查. 触发器就是在删,改,增的时候(可以是操作数据前,也可以是操作数据后)额外的帮你做一些事情保证你数据库的完整(PS:不知道为何,我们总监对触发器总是深恶痛绝.. = = ,) 下面就来一发Oracle触发器的基本语法: CREATE OR REPLACE TRIGGER trigger_name(触发器名) <before(操作数…

use fgets, and remove the potential '\n' in the string's last postion. (main point) remove redundancy there must be a stack, at first sight, you need a stack of type myNode, but think deeper, matrix multiplication is valid only if A.c=B.r, then the n…

应用场景: 在项目中,经常遇到将数据库数据导出到Excel,针对这种情况做了个程序封装.工作原理:利用NPOI将SQL语句查询出的DataTable数据导出到Excel,所见即所得. 程序界面:   源代码: http://download.csdn.net/detail/a497785609/8119729 点击下载  版权声明:本文为博主原创文章,未经博主允许不得转载.…

since LTE came out, with thin client cloud computing  and broadband communication clouding 不攻自破了.but just only a part. 版权声明:本文为博主原创文章,未经博主允许不得转载.…

for the backtracking part, thanks to the video of stanford cs106b lecture 10 by Julie Zelenski for the nice explanation of recursion and backtracking, highly recommended. in hdu 2553 cout N-Queens solutions problem, dfs is used. // please ignore, bel…