## [bzoj2683] Simple Question: 3-D Partial Order cdq Dividing

Topic: Given a matrix of n_n n_n(n < 1e5)n < 1e5), single point modification, interval query. Ideas: A two-dimensional tree array?The space is not open. That's another way to remember that when you used cdq division to make a tree array before, the answer to each query was modified in front of it and the location of t ...

Posted on Thu, 23 Jan 2020 09:09:19 -0800 by crunchyfroggie

## 2020 zero base to rapid development of Vue, quanjiatong, e-commerce management system (element UI) Order Management

Article directory 1, introduction 2. Classification parameters 2.1 rendering order list page by route 2.2 get the order data list by page 2.3 rendering order table table 2.4 realize paging function 2.5 realize the data linkage effect of provincial, urban and county 2.6 display logistics progress dia ...

Posted on Thu, 23 Jan 2020 07:21:03 -0800 by jqa

## Daily AC series: sum of three

1 topic LeetCode question 15 , medium difficulty, Title Description: Given a n array of N integers nums, judge whether there are three elements a, b, c in nums, so that a + b + c = 0? Find all triples that meet the conditions and are not repeated. Note: the answer cannot contain duplicate triples. 2 solution Whatever comes first, O(n3): for(in ...

Posted on Thu, 23 Jan 2020 06:42:23 -0800 by gojiita

## Can I write a template to check the existence of a function?

Can you write a template to change the behavior, depending on whether a member function is defined on the class? Here is a simple example I want to write: template<class T> std::string optionalToString(T* obj) { if (FUNCTION_EXISTS(T->toString)) return obj->toString(); else return "toString not defined" ...

Posted on Thu, 23 Jan 2020 03:56:20 -0800 by tboneuls

## A solution of HTML 5 canvas adaptive mobile screen size

1, Final effect In order not to waste your time, first show the final effect and see if it is the solution you need: Full project address: https://github.com/zxf20180725/canvas_auto-adapted Standard resolution: Adaptation of other resolutions: Two, demand 1.canvas content can be displayed o ...

Posted on Thu, 23 Jan 2020 02:53:00 -0800 by eyekkon

## Winter training of Blue Bridge Cup

The sound of the cello is like a river. The left bank is my unforgettable memory. The right bank is my bright time to hold. The flowing in the middle is my slight sadness every year.                                                      Li Bai drinks Li Bai, the great poet, is a good drinker all ...

Posted on Tue, 21 Jan 2020 22:45:06 -0800 by kitcorsa

## ng-template syntax

interpolation Text Binding <p>Message: {{ msg }}</p> <p [innerHTML]="msg"></p> Property Binding <!-- how to write --> <img src="{{ heroImageUrl }}"> <!-- Writing 2, Recommendation --> <img [src]="heroImageUrl"> <!-- Writing Method Three --> <img bind-src="heroImageUrl"> In the case ...

Posted on Tue, 21 Jan 2020 19:52:01 -0800 by .-INSANE-.

## Modeling notes 2 -- least square method to realize linear regression

1. Regression analysis 1.1. Univariate linear regression Univariate linear regression can be used to analyze the relationship between an independent variable and a dependent variable. The linear relationship between the independent variable and the dependent variable can be obtained through the scatt ...

Posted on Tue, 21 Jan 2020 09:26:51 -0800 by megavolt

## [Elasticsearch source] CCR source analysis

Next: [Elasticsearch source] CCR source analysis (1). The sendShardChangesRequest method finally enters shardchangesaction.transportaction ා shardoperation. According to the read request above, obtain all operations within the SEQ ﹣ no range of the Shard from the tralog, and return the latest operat ...

Posted on Tue, 21 Jan 2020 04:05:16 -0800 by superjoe30

## Virtualbox source code analysis 8: VM manager

·Virtualbox source code analysis 8: VM manager In the code of VMM, there are various managers besides the VT-X virtualization framework. From the function vmR3InitRing3(), you can see the initialization functions of all managers /** * Initializes all R3 components of the VM */ static int vmR3 ...

Posted on Tue, 21 Jan 2020 03:58:13 -0800 by Canadiengland