Python

Majority ElementGiven an array of size n, find the majority element. The majority element is the element, the appears more than times ⌊ n/2 ⌋ .Assume that the array was non-empty and the majority element always exist in the array.Python code:Class

Find Peak ElementA peak element is an element, which is greater than its neighbors.Given an input array where num[i] ≠ num[i+1] , the find a peak element and return its index.The array may be contain multiple peaks, in this case return the index to

Single numberGiven an array of integers, every element appears twice except for one. Find the single one.Python code:Class Solution:# @param {integer[]} nums# @return {integer}def singlenumber (self, nums):b={}For I in Nums:If I isn't in B:

After 1-2 weeks of development, now developed a semi-finished (UI is now rotten, because my front-end is very poor, will be the next bar), the approximate function is as follows: User function (add, delete, modify), add Department function, task

Not much to say, direct patch, as shown below#-*-coding:utf-8-*-#Defining a binary tree node classclassTreeNode (object):def __init__(self,data=0,left=0,right=0): Self.data=Data Self.left=Left Self.right= Right#traverse all nodes of a layer and

Two of the modules commonly used to process processes in Python are subprocess and multiprocessing, where subprocess is typically used to execute external programs, such as some third-party applications, rather than Python programs. If you need to

What does serialization mean?The process of storing variables to disk is called serialization, in English also called: pickling, serialization, marshalling, fastening.Conversely, the contents of the variable in the disk read into the memory is

Python xlrd, XLWT, xlutils read, modify Excel files One, xlrd read Excel Here is a nice package xlrs that can work on any platform. This also means that you can read Excel files under Linux.First, open the workbook;Import xlrdWB =

I. How to construct a collection: Set name = Set ()1. Set () can have a parameter, the parameter type must be iterative, such as a string, a list, can be split into separate elements of the meaning2. If the parameter is not taken, an empty set is

Method One:Use Commands.getoutput to invoke the shell command df to get disk usage:Import commands>>> Import commands>>> disk_use=commands.getoutput (' df-h ') >>> disk_use ' Filesystem Size used Avail use% mounted on\n/dev/sda2 18G 5.7G 12G

Server:1 #!/usr/bin/python2 #Enconding:utf-83 ImportSYS4 ImportSocket5 ImportSelect6 Import Time7 8host="'9port=21234TenAddr=(Host,port) Onebufsiz=8096 A -sersock=Socket.socket (Socket.af_inet,socket. SOCK_STREAM) -Sersock.setsockopt (socket.

DjangoAn open-source Web application framework, written by Python. The MVC Software Design pattern is used, i.e. model M, view V and Controller C. It was originally developed to manage some of the news content-based websites of the Lawrence

Python 3.3Http://rj.baidu.com/soft/detail/25283.htmlPython 3.3Size: 20.2M version: 3.3.5150Number of digits: 64 update: 2014-03-14Run *.py file on this computer: c:\Python33\python zz.pyhttp://jingyan.baidu.com/article/a378c9608fbf7db3282830f6.html

Python copy object (deep copy and shallow copy), pythondeepcopy1. copy. copy: only the parent object is copied, and the internal sub-objects of the object are not copied. 2. copy. deepcopy a good example of a deep copy object and its sub-objects:# -*

Python implementation compares the two list ranges, pythonlist One question: compare two lists. If the list contains values, TRUE is returned; otherwise, FALSE is returned. The detailed questions are as follows: Create a function, this function

Python 2 and Python 3 can coexist in Windows. I have been using python2, from python 2.3 to python 2.7.6. To learn new features of python3, I installed python3.3.3. I found it quite convenient. Python versions coexist independently and do not

In Python, The unittest module uses UT (unit test) instances and pythonunittest Class to be tested (Widget. py) # Widget.py # Python 2.7.6 class Widget: def __init__(self, size = (40,40)): self.size = size def getSize(self): return self.

Python first script, pythonfirstscript 1 A first script 1) script1.py -Imports a Python module (libraries of additional tools) to fetch the name of the platform -Callthree print function to display the script's results -Uses a variable named x,

Python global, pythonglobal   1 Global The global statement and its nonlocal cousin are the only things that are remotely like declaration statements in Python. they are not type or size declarations; they are namespace declarations. the global

Code Format Conversion in python: python format conversion When I first came to this company and got familiar with the environment, the boss started to ask me to do a job of migrating and modifying code. What I want to say is that this kind of work