生成器>>> def func1():... yield 0... yield 1... >>> a=func1()>>> a.next()0>>> a.next()1>>> a.next()Traceback (most recent call last): File "", l...
分类：
编程语言 时间：
2014-07-06 20:07:34
阅读次数：
251
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类：
其他好文 时间：
2014-07-06 17:44:30
阅读次数：
181
Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is at...
分类：
其他好文 时间：
2014-07-06 16:11:35
阅读次数：
170
There are a bunch of different methods you can use to back up your MongoDB data, but if you want to avoid downtime and/or potential
performance degradation, the most common advice seems to be that y...
分类：
数据库 时间：
2014-07-06 09:26:04
阅读次数：
437
For the exercises in this chapter we need a list of English words. There are lots of word lists available on the Web, but the most suitable for our pu...
分类：
其他好文 时间：
2014-07-05 22:45:55
阅读次数：
545
题意为给你若干个圆，每个圆的颜色对应一个频率，如果两个圆有公共部分，那么这两个圆之间可以走，你可以从起点开始，从频率小的圆走向频率大的圆并且到达终点后，从频率大的圆走向频率小的圆，最终回到起点，路径中每个圆只能走一次，是否存在一个满足条件的方案。这样的，把红点当做起点，把紫点当做终点，如果两个圆相交...
分类：
其他好文 时间：
2014-07-05 19:55:06
阅读次数：
189
About PythonPythonis an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built in data structures,...
分类：
编程语言 时间：
2014-07-03 22:24:34
阅读次数：
287
题目描述There are N tasks and M resources, each task is asked to use some resources and each resource can only be used by at most one task. You are asked ...
分类：
其他好文 时间：
2014-07-03 20:35:23
阅读次数：
274
题目
Say you have an array for which the ith element is the price of a given stock on day i.
If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the...
分类：
其他好文 时间：
2014-07-03 17:51:01
阅读次数：
235
Water is the most important substance needed by the body. It is the sole substance which has affected the human being and civilization. That’s why it ...
分类：
其他好文 时间：
2014-07-02 19:00:20
阅读次数：
154
