2015暑假总结

暑假记录 date work 2015/7/13-2015/7/14 win下安装scrapy 安装流程: 重新安装python2.7 安装pip,easy_install 使用pip安装lxml,pyOpenSSL,Zope.Interface,twisted,pywin32 注意所有的系统版本都需要对上,否则在twisted的deferred会出现错误 2015/7/15 简易版python小说爬虫

2015.07.19 1 //2015.07.19 2 3 **********做的题目*********** 4 LA 4254 5 二分最小化最大值,check函数不好写---,是一秒一秒地来处理的 6 7 UVa 11627 8 二分,写check函数的时候,用到了一点点物理的平抛,求出下落的区间的范围,再判断是否可行 9 10 UVa 11134 11 贪心,优先队列, 12 行列无关,转化为对于[1,n]中的每一个数,判断i是否在区间[l,r]里面 13 然后贪心地选择包含i点的右端点

题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5410 Problem Description Today is CRB's birthday. His mom decided to buy many presents for her lovely son.She went to the nearest shop with M Won(currency unit).At the shop, there are N kinds of pr

题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5396 Problem Description Teacher Mai has n numbers a1,a2,?,anand n−1 operators("+", "-" or "*")op1,op2,?,opn−1, which are arranged in the form a1 op1 a2 op2 a3 ? an. He wan

题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5379 Problem Description Little sun is an artist. Today he is playing mahjong alone. He suddenly feels that the tree in the yard doesn't look good. So he wants to decorate the tree.(The tree has n

原题链接 Problem Description There are n people and m pairs of friends. For every pair of friends, they can choose to become online friends (communicating using online applications) or offline friends (mostly using face-to-face communication). However, e

本想暑假留校好好学习,顺便参加一下电赛,算是对自己前两年在实验室学习生活的一点交代,可并不如意,不能成为自己所想的样子. 12号早上发布了赛题,劝服高老师选择了b题(做一个风力摆),题目即使是现在想来也是十分有意思. 12号下午就去找材料,搭支架.可一直到了第二天下午快到晚饭的时间架子才送来.然后就是一直想着让它摆起来,恰巧delay延时设置的准确,高兴就这样过了头,后来与用公式计算出来的延时相差无几.对了13号上午一直粘风扇,忙了一上午,下午忘记忙啥了,晚上乱调一通.然后14号高老师过来调他的

A - Easy Task Time Limit:2000MS    Memory Limit:65536KB    64bit IO Format:%lld & %llu SubmitStatusPracticeZOJ 2969 Description Calculating the derivation of a polynomial is an easy task. Given a function f(x) , we use (f(x))' to denote its derivatio

Light BulbsTime Limit:2000MS    Memory Limit:65536KB    64bit IO Format:%lld & %llu SubmitStatusPracticeZOJ 2976 Description Wildleopard had fallen in love with his girlfriend for 20 years. He wanted to end the long match for their love and get marri