Day 19: dynamic memory management

Today's learning effect is unsatisfactory. I interrupt from time to time and only learn a little content. I use the structure to make the address book and optimize the address book with the knowledge of dynamic memory allocation. It seems that one mind and two uses are also a skill worth mastering. 1. Why is there dynamic memory allocation ...

Posted by Horizon88 on Wed, 16 Feb 2022 13:03:41 +0100

2022-02-16 swipe questions and punch in every day

1, ACWing:900 Integer partition (1) Problem description A positive integer nn can be expressed as the sum of several positive integers, such as: n=n1+n2 +... + nkn=n1+n2 +... + nk, where n1 ≥ n2 ≥... ≥ nk,k ≥ 1n1, n1 ≥ n2 ≥... ≥ nk,k ≥ 1. We call such a representation a partition of positive integer nn. Now, given ...

Posted by Formula on Wed, 16 Feb 2022 12:59:32 +0100

Using C# to explore different machine learning tasks in ML.NET

  catalogue What is ML.NET? Install ML.NET Tasks that support automatic ML Binary classification Multi category classification regression recommend ranking Other solution types Forecast time series data clustering anomaly detection image classification Object detection conclusion What is ML.NET? ML.NET is Microsoft's open s ...

Posted by Jenling on Wed, 16 Feb 2022 12:11:26 +0100

Write a calculator in Python

Source code in python learning exchange q group: 733089476 preface There are two common computing AIDS. One is the abacus invented by the ancients, and the other is the calculator invented by our modern people. Compared with the abacus, the calculator is better than the abacus in terms of convenience and computing speed. In this paper, we use ...

Posted by Rojay on Wed, 16 Feb 2022 12:06:03 +0100

Using OpenYurt to manage WasmEdge | lightweight edge computing solution

OpenYurt, Vivian Hu (WasmEdge) Edge calculation It is a distributed application architecture that places computing resources (such as CPU and storage) close to the data source. In this way, it provides low latency, high performance and strong security for various applications. However, similar to cloud computing in data center, edge computi ...

Posted by timcapulet on Wed, 16 Feb 2022 12:02:58 +0100

Concurrent programming 5: detailed explanation of the underlying principle of java Concurrent thread pool and source code analysis

Detailed explanation of the underlying principle and source code analysis of java Concurrent thread pool Performance comparison between thread and thread pool The first part analyzes Java threads. Now let's analyze the java thread pool. Before analyzing the thread pool, let's think about whether the more threads we create, the better. Obv ...

Posted by Jay2391 on Wed, 16 Feb 2022 12:01:10 +0100

Enhancing Kubernetes network security with Cilium

TL;DR In this article, we use Kubernetes' native network strategy and Cilium's network strategy to realize the isolation of Pod network level. The difference is that the former only provides the network strategy based on L3/4; The latter supports L3/4 and L7 network policies. Improving network security through network strategy can greatly r ...

Posted by AQHost on Wed, 16 Feb 2022 11:50:17 +0100

30 - design principles and design patterns

Design principles and design patterns Common design principles---------------------------------------- Software development process: requirements analysis document, outline design document, detailed design document, coding and testing, installation and debugging, maintenance and upgrading Common design principles---------------------------- ...

Posted by fitchn on Wed, 16 Feb 2022 11:42:02 +0100

Sequence traversal of binary tree

1. Sequence traversal Sequence traverses a binary tree. It is to traverse the binary tree layer by layer from left to right. In order to realize sequence traversal, we need to use an auxiliary data structure, namely queue. Queue first in first out conforms to the logic of layer by layer traversal, while stack first in last out is suitab ...

Posted by matt_4013 on Wed, 16 Feb 2022 11:09:54 +0100

Operating system learning notes - semaphore related problems

prefaceLearning the operating system and taking notes.(add the types of problems related to semaphores and solutions) reference material: Operating system (essence and design principles, 6th Edition) Royal postgraduate entrance examination: 2019 Kingway postgraduate entrance examination operating system_ Beeping beeping beeping beeping beepin ...

Posted by WebGeek182 on Wed, 16 Feb 2022 10:40:03 +0100