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Leetcode 11 Container with most water【双指针】
总是莫名其妙被双指针的题卡到,其实双指针的题应该非常简单。 看到是array的题往two pointers上想就差不多了,然后它的核心不是说指针 i 和 j 指向的两个数构成最优解,而是说考虑 i 和 j 指向的其中一个数对答案的贡献,每次利用完throw away就行了。(同理two sum的双指 ...
分类:其他好文   时间:2019-06-05 09:49:40    阅读次数:64
[Machine Learning for Trading] {ud501} Lesson 3: 01-02 Working with multiple stocks
Lesson outline Lesson outline Here's an overview of what you'll learn to do in this lesson. Documentation links are for reference. Read in multiple st ...
分类:系统相关   时间:2019-06-04 09:47:39    阅读次数:183
2906: Largest Submatrix of All 1’s
描述 Given a m-by-n (0,1)-matrix, of all its submatrices of all 1’s which is the largest? By largest we mean that the submatrix has the most elements. G ...
分类:其他好文   时间:2019-06-04 09:26:13    阅读次数:96
poj 3294 Life Forms
Life Forms Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 18777 Accepted: 5530 Description You may have wondered why most extraterrestrial ...
分类:其他好文   时间:2019-06-03 14:23:10    阅读次数:84
pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path && FileNotFoundError: [WinError 2] 系统找不到指定的文件。
C:\Users\k\Desktop\test>python test.py Traceback (most recent call last): File "C:\Users\k\Anaconda3\lib\site-packages\pytesseract\pytesseract.py", li... ...
分类:Windows程序   时间:2019-06-02 01:19:13    阅读次数:1488
Survey lists 10 most innovative cities
From China Daily Beijing and Shanghai are among the 10 most innovative cities in the world, based on published articles in leading academic journals, ...
分类:其他好文   时间:2019-05-28 19:55:57    阅读次数:175
Collections库使用
Date: 2019 05 27 Author: Sun Collections库 ? Python拥有一些内置的数据类型,比如str, int, list, tuple, dict等, collections模块在这些内置数据类型的基础上,提供了几个额外的数据类型: : 生成可以使用名字来访问元素 ...
分类:其他好文   时间:2019-05-27 23:36:34    阅读次数:307
LRU算法原理解析
LRU是Least Recently Used的缩写,即最近最少使用,常用于页面置换算法,是为虚拟页式存储管理服务的。 现代操作系统提供了一种对主存的抽象概念虚拟内存,来对主存进行更好地管理。他将主存看成是一个存储在磁盘上的地址空间的高速缓存,在主存中只保存活动区域,并根据需要在主存和磁盘之间来回传 ...
分类:编程语言   时间:2019-05-26 20:03:42    阅读次数:241
Python中Counter统计数据输出具体办法
k=c.most_common(len(c)) # 找出全部元素从大到小的元素频率以及对应的次数。print(k)for o in k: # print(o) print(str(o[0])+" "+str(o[1])) ...
分类:编程语言   时间:2019-05-26 19:37:38    阅读次数:1607
Infantile Amnesia
Infantile Amnesia What do you remember about your life before you were three? Few people can remember anything that happened to them in their early ye ...
分类:其他好文   时间:2019-05-18 19:01:26    阅读次数:127
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