cProfile是标准库内建的分析工具的其中一个,另外两个是hotshot和profile s cumulative s cumulative开关告诉cProfile对每个函数累计花费的时间进行排序,他能让我看到代码最慢的部分。 我们有这样一个函数。 loopdemo.py 运行下面命令 得到如下结 ...
分类:
编程语言 时间:
2019-01-14 00:20:07
阅读次数:
305
The thief has found himself a new place for his thievery again. There is only one entrance to this area, called the "root." Besides the root, each hou ...
分类:
其他好文 时间:
2019-01-13 14:27:15
阅读次数:
193
Write an iterator that iterates through a run-length encoded sequence. The iterator is initialized by RLEIterator(int[] A), where A is a run-length en ...
分类:
其他好文 时间:
2019-01-13 14:21:03
阅读次数:
130
You are given an integer array A. From some starting index, you can make a series of jumps. The (1st, 3rd, 5th, ...) jumps in the series are called od ...
分类:
其他好文 时间:
2019-01-13 13:43:04
阅读次数:
268
What is Systems Architecture ? Systems Architecture is a generic discipline to handle objects (existing or to be created) called "systems", in a way t ...
分类:
其他好文 时间:
2019-01-10 18:50:12
阅读次数:
120
//创建对象数组 #include<iostream> using namespace std; class Point { public: Point() { X=Y=0; cout<<"Default Constructor called."<<endl; } Point(int xx,int ...
分类:
编程语言 时间:
2019-01-08 15:17:10
阅读次数:
280
A long-distance telephone company charges its customers by the following rules: Making a long-distance call costs a certain amount per minute, dependi ...
分类:
其他好文 时间:
2019-01-05 19:59:48
阅读次数:
247
题目 简单题,前缀和方法 乍一看就觉得应该用前缀和来做,一个数组多次查询。 实现方法: 新建一个private数组prefix_sum[i],用来存储nums前i个数组的和, 需要找区间和的时候直接通过prefix_sum[j]-prefix[i-1]即可得到从[i,j]区间的和,当i是0的时候需要 ...
分类:
其他好文 时间:
2019-01-03 21:41:18
阅读次数:
199
IEEE 802.11r-2008 or fast BSS transition (FT), also called fast roaming, is an amendment to the IEEE 802.11 standard to permit continuous connectivity ...
分类:
其他好文 时间:
2019-01-03 16:43:53
阅读次数:
231
题目描述: Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , ...
分类:
其他好文 时间:
2019-01-01 21:44:32
阅读次数:
210