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Lists and tuples
zip is a built-in function that takes two or more sequence and ‘zips’ them into a list of tuples, where each tuple contains one element from each sequ...
分类:其他好文   时间:2014-07-22 22:53:14    阅读次数:269
(CF#257)C. Jzzhu and Chocolate
Jzzhu has a big rectangular chocolate bar that consists of n?×?m unit squares. He wants to cut this bar exactly k times. Each cut must meet the following requirements: each cut should be straig...
分类:其他好文   时间:2014-07-22 22:49:15    阅读次数:192
Servlet/JSP and CGI.
CGI has maybe the worst lift cycle possible.As designed, each request to a CGI resource creates a new process on the server andpasses information to.....
分类:Web程序   时间:2014-07-22 09:06:07    阅读次数:330
在YARN中,如何控制和监控map/reduce的并发数
配置建议: 1. ????In MR1, the mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum properties dictated how many map and reduce slots each TaskTracker had. ????T...
分类:其他好文   时间:2014-07-21 10:14:00    阅读次数:279
Dictionaries and tuples
Dictionaries have a method called items that returns a list of tuples, where each tuple is a key-value pair. As you should expect from a dictionary, t...
分类:其他好文   时间:2014-07-19 23:02:40    阅读次数:372
LeetCode:Remove Duplicates from Sorted Array
Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space for a...
分类:其他好文   时间:2014-07-19 22:19:36    阅读次数:202
UVA 11774 - Doom's Day(规律)
UVA 11774 - Doom's Day 题目链接 题意:给定一个3^n*3^m的矩阵,要求每次按行优先取出,按列优先放回,问几次能回复原状 思路:没想到怎么推理,找规律答案是(n + m) / gcd(n, m),在topcoder上看到一个证明,如下: We can associate at each cell a base 3-number, the log3(R...
分类:其他好文   时间:2014-07-19 14:06:19    阅读次数:220
STL vector使用方法介绍
介绍这篇文章的目的是为了介绍std::vector,怎样恰当地使用它们的成员函数等操作。本文中还讨论了条件函数和函数指针在迭代算法中使用,如在remove_if()和for_each()中的使用。通过阅读这篇文章读者应该可以有效地使用vector容器,并且应该不会再去使用C类型的动态数组了。Vect...
分类:其他好文   时间:2014-07-19 12:20:11    阅读次数:240
【leetcode】Clone Graph
Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors.OJ's undirected graph serialization:Nodes are labeled uniq...
分类:其他好文   时间:2014-07-19 12:11:53    阅读次数:238
ZOJ 1002 Fire Net
columns, each representing a street or a piece of wall.A blockhouse is a small castle that has four openings through which to shoot. The four openings...
分类:Web程序   时间:2014-07-19 11:28:06    阅读次数:281
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