Java Timing New Posture

For a better reading experience, please visit the original text: PortalForeword: Recently, a big man came to our company and learned a lot from him. One of them is timing. Stop Watch, let's get to know it. The simplest timing In our program, it is necessary to time an operation or method so that we can observe whether the operation or metho ...

Posted on Tue, 30 Jul 2019 10:29:07 -0700 by jbrave

ST Table & LCA&RMQ

SparseTable RMQ Problem RMQ (Range Minimum/Maximum Query) problem refers to answering a number of queries about RMQ (A, i,j) (i,j <= n) for column A with length n, returning the smallest (largest) value of subscript in column A in I and J. That is to say, RMQ problem refers to the problem of find ...

Posted on Tue, 30 Jul 2019 07:41:41 -0700 by rockofaith

The sixth day of pyhon's study

** Directory of Knowledge Points 1. Functions (Interview Questions) 2. Basic Format for Defining Functions 3. Four common cases of functions 4. What are the actual and formal parameters? 5. What are the details of function naming? 6.return characteristics 7. What parameters can be filled in after the fu ...

Posted on Tue, 30 Jul 2019 06:47:00 -0700 by AMV

Summary of the Use of C++ vector

Vector is a vector type, it can hold many types of data, such as several integers, so it is called container. It is equivalent to a dynamic array, when programmers can not know the size of the array they need, using it to solve problems can achieve the purpose of maximizing space savings. Vector is ...

Posted on Tue, 30 Jul 2019 05:01:32 -0700 by phpstuck

c + + calls python script

In-depth learning related algorithms are written in python language. Application engineering and so on are basically written by c++; if we want to combine them well, we will shorten the development time. 1. Setting up the environment: Write a Python script: Script1.py (Start with the name Script.py ...

Posted on Tue, 30 Jul 2019 02:09:40 -0700 by bubblewrapped

Common-pool 2 of pool technology

What's this apache commons-pool It is an open source object pool component of apache foundation. The common database connection pool dpcp and redis java client jedis use commons-pool to manage connections Optimizing the creation of objects is the same as the hedonic pattern in the design pattern Class parsing Pooled Object Pooled O ...

Posted on Tue, 30 Jul 2019 01:54:55 -0700 by azn

Bubble sort, insert sort, select sort, quick sort, merge sort, Hill sort

1. Bubble Sorting: Compare two to two, and reverse order is exchanged. Like bubbles, grunt ~, putting the smallest/largest data in front of each time. var arr = [7,5,61,2,3,14]; for (let i = 0; i < arr.length-1; i++) { for (let j = i+1; j < arr.length; j++) { ...

Posted on Tue, 30 Jul 2019 01:43:14 -0700 by samusk

C++ Realization of Wheel Track

Title: Wheel Track Every day, Dong Dong goes home by bicycle through a narrow avenue. The road has become very uneven due to its disrepair. Although Dong Dong is bumpy every time, he still regards riding through the Avenue as a pleasure. Because of the bump, the path of Dong Dong's bike home is a curve ...

Posted on Mon, 29 Jul 2019 20:58:37 -0700 by matthiasone

State mode

Articles Catalogue State mode 1. Intention 2. Aliases 3. Motivation 4. Applicability 5. Structure 6. Participants 7. Collaboration 8. Effect 9. Realization 10. Code examples 11. Known applications 12. Relevant Models 13. Design Principle Pocket 14. References State mode Subordinate Category-Ob ...

Posted on Mon, 29 Jul 2019 19:38:56 -0700 by akrocks_extreme

Why do I use a pointer to a linked list pointer in a linked list add function?

The pointer piece has been very round and unclear. When reading a book, there is a function that adds nodes to the list. The code takes into account that the possible header pointer is empty and does some other processing. The code is as follows:       #include <iostream>     #include <st ...

Posted on Mon, 29 Jul 2019 18:59:05 -0700 by ktstowell