EricYang

摘要： Stockbroker GrapevineTime Limit:1000MSMemory Limit:10000KTotal Submissions:15133Accepted:8160DescriptionStockbrokers are known to overreact to rumours. You have been contracted to develop a method of spreading disinformation amongst the stockbrokers to give your employer the tactical edge in the sto 阅读全文

摘要： FroggerTime Limit: 1000MSMemory Limit: 65536KTotal Submissions: 11350Accepted: 3805DescriptionFreddy Frog is sitting on a stone in the middle of a lake. Suddenly he notices Fiona Frog who is sitting on another stone. He plans to visit her, but since the water is dirty and full of tourists' sunscreen 阅读全文

摘要： OJ上的一些水题(可用来练手和增加自信) (poj3299,poj2159,poj2739,poj1083,poj2262,poj1503,poj3006,poj2255,poj3094) 初期: 一.基本算法: (1)枚举. (poj1753,poj2965) (2)贪心(poj1328,poj2109,poj2586) (3)递归和分治法. (4)递推. (5)构造法.(poj3295) (6)模拟法.(poj1068,poj2632,poj1573,poj2993,poj2996) 二.图算法: (1)图的深度优先遍历和广度优先遍历. (2)最短路径算法(dijkstra, 阅读全文

摘要： 昂贵的聘礼Time Limit: 1000MSMemory Limit: 10000KTotal Submissions: 17673Accepted: 4717Description年轻的探险家来到了一个印第安部落里。在那里他和酋长的女儿相爱了，于是便向酋长去求亲。酋长要他用10000个金币作为聘礼才答应把女儿嫁给他。探险家拿不出这么多金币，便请求酋长降低要求。酋长说："嗯，如果你能够替我弄到大祭司的皮袄，我可以只要8000金币。如果你能够弄来他的水晶球，那么只要5000金币就行了。"探险家就跑到大祭司那里，向他要求皮袄或水晶球，大祭司要他用金币来换，或者替他弄来其他的东西，他可以降低价格。 阅读全文

摘要： WormholesTime Limit: 2000MSMemory Limit: 65536Ktal Submissions: 11389Accepted: 3998DescriptionWhile exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its destination at a time that is BEFO 阅读全文

摘要： Currency ExchangeDescriptionSeveral currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and performs exchange operations only with these currencies. There can be several points specializing in the same pair of currencies. Each poi 阅读全文

摘要： 一直在看书，但不知道是否可以完全理解，所以就写在这了，当是对知识的总结。最近再看Unix环境下的编程，读了一本经典Standard I/O Library，初次接触，还是有些不是很明白的地方，暂且把知识点列在这吧。第五章 标准IO库：5.1流和FILE对象Standard I/O file streams can be used with single-byte and multibyte ("w... 阅读全文

摘要： Fedora14在11月2日正式发布，作为Fedora的fans，所以决定格盘，安装Fedora。但是ICBC的网银不支持Linux，萌生了虚拟机安装XP的想法。运用Fedora自带的KVM虚拟机，用在我core2300的主机上，速度是在太慢了，cpu资源直接100%(2vcpu, 768M mem)。从网上看到资料，推荐VirtualBox，搞起。1). 修改repo，下载VirtualBox2... 阅读全文

摘要： 欢迎大家来踩踩～～Communication makes world better!Nov 7 2010 阅读全文