投稿時間:2022-02-18 19:29:51 RSSフィード2022-02-18 19:00 分まとめ(40件)

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IT	InfoQ	Solo.io、eBPFの開発を容易にするBumbleBeeをオープンソース化	https://www.infoq.com/jp/news/2022/02/bumblebee/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	anhutranslatedbyhyoshida	2022-02-18 09:22:00
IT	InfoQ	継続的な深層学習の評価：画像分類のための新しいベンチマーク	https://www.infoq.com/jp/news/2022/02/continual-ml-benchmark/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	継続的な深層学習の評価画像分類のための新しいベンチマーク継続的な学習は、ディープネットワークトレーニングの反復全体で知識を保持することを目的としている。	2022-02-18 09:19:00
IT	InfoQ	大学研究者チームがロボット制御のためのブレイン・コンピュータ・インターフェイスを開発	https://www.infoq.com/jp/news/2022/02/university-bci-robot/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	大学研究者チームがロボット制御のためのブレイン・コンピュータ・インターフェイスを開発スイス連邦工科大学ローザンヌ校EPFLとテキサス大学オースティン校UTの研究者らは、ロボットマニピュレータの動作軌道の修正が可能なブレイン・コンピュータ・インターフェースを開発した。	2022-02-18 09:17:00
IT	InfoQ	Metaがメタバース用のAIスーパーコンピュータを発表	https://www.infoq.com/jp/news/2022/02/meta-metaverse-ai-supercomputer/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	Metaがメタバース用のAIスーパーコンピュータを発表Metaは、AI研究を加速し、同社のメタバース構築を支援することを目的としたAIResearchSuperClusterRSCスーパーコンピュータを発表した。	2022-02-18 09:15:00
IT	InfoQ	12年間使われているLinuxディストリビューションの脆弱性PwnKitによりローカルの権限昇格が可能に	https://www.infoq.com/jp/news/2022/02/linux-pwnkit-vulnerability/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	年間使われているLinuxディストリビューションの脆弱性PwnKitによりローカルの権限昇格が可能に最近公開された脆弱性は、PolKitコンポーネントに影響を与えるものだが、年以上にわたっていくつかのLinuxディストリビューションに存在している。	2022-02-18 09:12:00
IT	InfoQ	Kubernetes Rancher Desktopに関してSUSEのMatthew Farina氏とのQ&A	https://www.infoq.com/jp/news/2022/02/farina-suse-rancher-desktop/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	KubernetesRancherDesktopに関してSUSEのMatthewFarina氏とのQampAInfoQは、SUSEのソフトウェアアーキテクトであるMatthewFarina氏に、RancherDesktopについて話を聞いた。	2022-02-18 09:09:00
TECH	Engadget Japanese	スマホフル充電までの時間「10分以下」に、シャオミが150W充電を開発中との噂	https://japanese.engadget.com/xiaomi-120-094546458.html	mydrivers	2022-02-18 09:45:46
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 京都駅前地下街「ポルタ」飲食店ゾーン、3月25日に改装オープン	https://www.itmedia.co.jp/business/articles/2202/18/news150.html	itmedia	2022-02-18 18:21:00
AWS	AWS Japan Blog	AWS is How: GE リニューアブルエナジーが風力発電の生産量を増加	https://aws.amazon.com/jp/blogs/news/aws-is-how-ge-renewable-energy-increases-wind-energy-production/	そして、私たちは年以上にわたり、風力タービンを発電に使用してきました。	2022-02-18 09:44:24
python	Pythonタグが付けられた新着投稿 - Qiita	「新・明解Pythonで学ぶアルゴリズムとデータ構造」で勉強日記#12	https://qiita.com/kato_squalldeka/items/ff95e1234dadd81b7eec	ポインタ式前回の線形リストでは、追加削除を行う際には、データを詰めるような動作がありましたが、カーソル式ではフリーリスト削除した部分のリストを生成して対応します。	2022-02-18 18:27:56
python	Pythonタグが付けられた新着投稿 - Qiita	miHub で使用している技術を紹介します	https://qiita.com/oliverSI_/items/2433a8b4ce4ed3fe083e	開発スピードを優先して、モノリシックにした方が良いという意見もありましたが、プロダクトの方針として、使いやすさは重視したいということもあり、最終的にSPAの採用を決定しました。	2022-02-18 18:23:08
js	JavaScriptタグが付けられた新着投稿 - Qiita	JavaScriptでゲームを作る🎮 その１	https://qiita.com/sfjwr/items/57ef93be349af401779c	JavaScriptでゲームを作るそのはじめにJavaScriptJSでゲームを作ります生のJSで作りますTypeScriptなどは使用しません同じようなことをやろうと思った人たちの敷居を上げないためHTMLやJS自体の説明はしませんゲーム用のライブラリ等は使用しませんDで作りますブラウザで動かします環境差異は気にしません最新のChromeでのみ動作確認しますゲーム内容はとりあえず未定ですコントローラーを使いたいので、アクション系にはしようかなと考え中今回の目次ゲームループを作るオブジェクト制御を作るFPSを画面に表示するゲームパッドからの入力を作るゲームパッドからの入力を画面に表示するプレイヤーキャラを作るゲームループを作る概要まず初めに、ゲームループを作ります。	2022-02-18 18:31:52
js	JavaScriptタグが付けられた新着投稿 - Qiita	ReactとNode.js(express)でAPIの通信を確立する	https://qiita.com/demizoo/items/1fdf3896774f5292495c	色々質問されるけど、とりあえずデフォルトでokyarnaddexpressでexpressのパッケージをインストールindexjsをbackend配下に作成するindexjsは以下のように記述するconstexpressrequireexpressconstappexpressexpressのインスタンスconstportlistenするport番号appgetreqresgtressendHelloWorldapplistenportgtconsolelogExampleapplisteningonportportnodeindexjsを実行するとこんな感じでlocalhostに立ち上がる。	2022-02-18 18:08:48
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	Ubuntuでddrescueを使って、SSDを丸ごとコピーする	https://qiita.com/umetaman/items/5b8222170cd31218f388	Ubuntuでddrescueを使って、SSDを丸ごとコピーするWindowsがインストールされているSSDが劣化によって不安定になったので、新しいSSDに丸ごとコピーしました。	2022-02-18 18:38:51
AWS	AWSタグが付けられた新着投稿 - Qiita	miHub で使用している技術を紹介します	https://qiita.com/oliverSI_/items/2433a8b4ce4ed3fe083e	開発スピードを優先して、モノリシックにした方が良いという意見もありましたが、プロダクトの方針として、使いやすさは重視したいということもあり、最終的にSPAの採用を決定しました。	2022-02-18 18:23:08
Ruby	Railsタグが付けられた新着投稿 - Qiita	miHub で使用している技術を紹介します	https://qiita.com/oliverSI_/items/2433a8b4ce4ed3fe083e	開発スピードを優先して、モノリシックにした方が良いという意見もありましたが、プロダクトの方針として、使いやすさは重視したいということもあり、最終的にSPAの採用を決定しました。	2022-02-18 18:23:08
技術ブログ	Mercari Engineering Blog	メルカリ Shops の開発を支える Automation 化	https://engineering.mercari.com/blog/entry/20220218-mercari-shops-automation/	hellip	2022-02-18 10:00:22
技術ブログ	Developers.IO	[小ネタ] AWS App RunnerのECSタスクメタデータを調べてみた	https://dev.classmethod.jp/articles/how-to-get-app-runner-esc-task-metadata/	flaskgunico	2022-02-18 09:42:37
海外TECH	MakeUseOf	What Is Quordle? How to Play This Tricky Wordle Clone	https://www.makeuseof.com/what-is-quordle-how-to-play-wordle-clone/	quordle	2022-02-18 09:28:05
海外TECH	DEV Community	LitmusChaos at Chaos Carnival 2022	https://dev.to/prithvi1307/litmuschaos-at-chaos-carnival-2022-563c	LitmusChaos at Chaos Carnival Chaos Carnival was held from January Although held as a virtual event it wasn t just your everyday Chaos Engineering conference but was rather a huge success with the traction it received from the chaos community for both the days With Chaos Sessions Live Panel Discussions Chaos Workshops attendees inclusive of CEOs CTOs VPs Directors SREs DevOps practitioners and many more from the industry Chaos Carnival delivered a statement as the flagship chaos engineering conference of the year As one of the organizing team members as well as the lead for the LitmusChaos community it was indeed a pleasure to witness around talks and workshops featuring LitmusChaos each with unique stories and covering a different aspect of the technology delivered by stalwart speakers from around the world as part of the speaker roster The conference kicked off on the th of January at AM PST with an amazing keynote by Mikolaj Pawlikowski followed by the live Chaos Panel discussion hosted by LitmusChaos SIG Docs lead Divya Mohan featuring community members Laura Henning Katie Gamanji Chief of Future Founders OpenUK Dushyant Sahni Global Practice Leader ISV and Horizontal Tech Nagarro Mahesh Venkataraman Technology Leader Cloud Advisory Accenture and Manivannan Chandrasekaran DevOps Engineering Manager HaloDoc who shared various inputs and stories from their experiences addressing misunderstandings amp misconceptions existing in individuals amp enterprises while starting off their Chaos Engineering journey learnings to help the community get started with the practice of Chaos Engineering understanding use cases hiring chaos practitioners automating Chaos Engineering introducing Chaos Engineering as a practice in large enterprises identifying the most important metrics for practicing Chaos and adopting Chaos Engineering for legacy applications The Live Panel garnered amazing community response and also answered a lot of queries every other community member has before getting started with Chaos Engineering as well as after testing their hands on Chaos Check out the full recording for Chaos Panel Discussion Further in this blog we will be covering the various talks that featured the LitmusChaos tool in one way or the other defining various stories and use cases that have transitioned the community as a whole and has brought in the demand for LitmusChaos as one of the go to toolsets to ensure reliability We ll be sharing thoughts about the talks based on LitmusChaos with a short abstract on what the speaker covered and also the recording that is available on the ChaosNative YouTube channel I could only watch a small portion of them but the ones I m mentioning are well worth watching if you missed them live So let s get started Day The Freedom of Kubernetes requires Chaos Engineering to shine in production Henrik RexedThe first talk of the conference post the keynote and panel discussion was delivered by Henrik Rexed from Dynatrace who has been working on the cloud native side of things for sometime now and runs the Is It Observable YouTube channel containing tutorials on various cloud native tools He believes that Kubernetes is an amazing technology but it also requires a lot of configuration to make sure that our workloads are reliable In his session he explains how to use Chaos engineering to improve the reliability of our cluster and how complex it is to measure and validate the impact of our settings on our end users From Monitoring to Observability Left Shift your SLOs with Chaos Michael FriedrichIn this talk Michael shares his horror debugging stories at Chaos Carnival slides situations where he would have loved to have insights before they cause production problems for all teams involved Michael also introduces a developer s view on using cloud native resources and mistakes turned into visible failures He takes us through the first steps with metrics SLOs and app instrumentation quality gates in a CI CD pipeline and chaos engineering according to his experience in the past years Michael also believes that simulating a production incident to test reliability and observability can be a challenge Chaos engineering brings a new building block into the DevOps and Observability platforms backed by an example that the engineering teams at LEGO tackle their Ops challenges with Chaos Engineering Chaos Engineering Saiyam PathakIn this talk LitmusChaos community member Saiyam Pathak highlights the impact of chaos engineering in the cloud native ecosystem and the various toolings around it Saiyam highlights how Chaos engineering tools have matured overtime and are also moving towards a standardisation by collaborating on the Chaos Engineering whitepaper so that the tools move in the right direction He shares his vision on how Chaos Engineering moves forward from here in the year and discusses the two famous tools on the cloud native landscape LitmusChaos and Chaos mesh and how both of them have evolved overtime to tackle the various chaos challenges Chaos Engineering in Multi tenant and Hybrid Environments Karthik SKarthik begins his talk by covering how with the advent of Kubernetes driven application development amp deployment Cloud Native Chaos Engineering has slowly but steadily become an established paradigm This entails using Kubernetes itself as the substrate and control plane for the execution of chaos business logic on microservices and their underlying Kubernetes infrastructure to evaluate and improve resilience He addresses the lingering questions concerns around how Chaos Engineering fits into an enterprise setting that is largely hybrid with services hosted on both Kubernetes clusters as well as “traditional infra baremetal virtual machines cloud instances making use of platform managed services etc Under ideal circumstances an SRE would prefer to use a single pane of glass approach to manage chaos engineering requirements In his talk he also discusses how Kubernetes can be leveraged along with the platform APIs of the infrastructure provider to achieve the desired fault injections and what are the best practices associated with this process Eventually demonstrating the said model with VMWare as the platform of choice The Applications of Non ks Chaos Experiments using LitmusChaos Neelanjan MannaNeelanjan has been a core contributor to the LitmusChaos project since the last one year and believes that although Cloud Native technologies are the cause of the paradigm shift which has enabled businesses to scale up flexibly the vast majority of the systems that still utilize the Non Kubernetes stack such as BareMetal servers cloud Infrastructure Cloud VMs etc are also significantly important from the perspective of service reliability In his talk he takes us through how LitmusChaos simplifies the process of Non Kubernetes Chaos Engineering with its vast range of Chaos Experiments that help in validating the reliability of an entire business use case GitOps meets Chaos Engineering Sangam BiradarIn this talk Sangam covers another exciting and new aspect of how one can use the GitOps terminology with Chaos Engineering He uses the Okteto Cloud Platform to run LitmusChaos experiments and chimes in on the crucial importance of GitOps in the Chaos Engineering space required to scale applications Day Chaos Engineering alongside LitmusChaos and Jenkins Akram RiahiChaos engineering is being enabled within a lot of companies and LitmusChaos Community member Akram Riahi has been vital in helping a few of them to enable chaos using Litmus He talks about how LitmusChaos is being implemented at a company called Talend While automating Chaos has become a must in his talk he discusses how to facilitate integrating chaos engineering within ones Jenkins pipeline after QA testing our application image and before promoting it to production Akram emphasized on why it is important to enable developers to inject Chaos in their DevOps pipelines as often as they want and how this procedure can be made easier for developers who are bound to face roadblocks while injecting chaos Akram also advised communication with all DevOps team members regarding how the process of injecting chaos can create some performance problems or even failures with a blast radius in a live production environment In conclusion he urged not to be afraid of failures as they are instructive only to ultimately build more resilient applications Level up your organisation with DevSecOps practices amp Chaos Engineering Nik JainNik apprehends that it has been more and more evident that DevOps and SRE Modern Ops Teams have inadvertently conflicting goals This unintended tussle results in costly downtimes and degraded user experience that causes erosion in customer confidence and revenue leakages He addresses how enabling automated quality gates SLO based or gate keeping mechanisms that automatically assess the quality of software features release will help in providing developers early intervention with prescriptive feedback surrounding improvements and optimization by skipping unnecessary and expensive production war rooms The fun doesn t stop here he also puts light on how you can also consider incorporation of security gates in DevOps processes to enable DevSecOps that help detect Logj vulnerability like situations in continuous and automated fashion with an all encompassing full stack agent which helps shift left from a reactive SecOps only approach to early risk detection mitigation and management He showcases the good practices surrounding DevSecOps and Chaos Engineering along with adding Chaos Engineering to the mix for added business resilience to help SREs develop muscle memory that help remediate issues faster and prepare better for preempted and unexpected production issues known and unknown unknowns His talk aims to benefit developers release train engineers engineering management VPs CTO Mgrs SRE Testers Chaos engineers and more Configuring Kubernetes for Reliability with LitmusChaos Michael KnyazevMichael begins the talk by highlighting why Chaos Engineering practises are relevant for maintaining an effective CI CD pipeline that ensures system reliability However Chaos Engineering experiments are traditionally time consuming and potentially unsafe to run as they can have severe undesirable effects Hence automating Chaos Engineering for safe execution of chaos is emphasised along with informative logging for best QA practises He puts light on how LitmusChaos is helpful in covering all these requirements It can be used along with the ChaosCenter or using just the Litmus chaos operator ChaosCenter can manage all the different aspects of managing chaos engineering at scale and as a collaborative practice ChaosCenter makes use of Argo workflows which is a popular choice for orchestrating chaos workflow task containers in Kubernetes There are open sourced blueprints of Chaos Workflows available which can be used as the base templates for the various Chaos Engineering scenarios The reliability pipelines are fully Kubernetes native For example Jenkins can be used to trigger the reliability pipelines In the second part of the talk Michael discusses technical implementation details of the reliability pipelines As a technical demonstration Michael refers to a Jenkinsfile that configures a reliability pipeline to be run It contains the various stages that configure the workflow to be run Finally let us take a quick look at the workshops that kept the attendees engaged during the breaks Workshop LitmusChaos on Raspberry Pi ClusterWorkshop Abstract Running Ks on your local system using Minikube Ks etc has been the go to for many developers working towards Ks based technologies like LitmusChaos which sometimes require more system performance than we already have and cloud based providers are costly in the long run Raspberry Pi provides a cheaper alternative to these options rather than upgrading your system or paying for cloud based services for development needs In this talk we will explore LitmusChaos running on Raspberry Pi clusters for use in development environments starting with a tutorial on how to set up a Raspberry Pi cluster running Ks and then installing LitmusChaos on the cluster to run experiments We will also take a look at ways we can use this in staging production environments Workshop Using LitmusChaos in ChaosNative Litmus Cloud CLC DevOps cycleWorkshop Abstract Even though the automated CI CD pipeline enables fast product iterations provides standardized feedback loops for developers and reduces the chances of manual errors We can t predict all of an application s failure modes Therefore we need solutions that help us to discover application level vulnerabilities So This is where ChaosEngineering comes into play In this workshop they will be discussing how they have integrated LitmusChaos into their cloud platform ChaosNative Litmus Cloud DevOps pipeline to do Chaos Engineering In the end The conference was testimony to the leap LitmusChaos has made since its inception as a tool in the cloud native ecosystem People have adopted contributed to and loved the tool for their Chaos Engineering needs and the community keeps growing with content and such amazing talks I hope this blog helps you with some good insights and the talks become exemplary for the community I would like to thank Henrik Rexed Michael Friedrich Saiyam Pathak Akram Riahi Neelanjan Manna Sangam Biradar Raj Das Adarsh Kumar Akash Srivastava Udit Gaurav Karthik S Michael Knyazev and Nik Jain for their valuable contributions constant support and of course the amazing talks that they have delivered at this year s Chaos Carnival I look forward to another edition of Chaos Carnival next year with more such amazing talks especially on LitmusChaos Until then do check out all the awesome talks available on the Chaos Carnival Website and stay tuned Join the LitmusChaos Community Want to get help with queries learnings amp contributions Join the LitmusChaos community on slack To join the slack community please follow the following steps Step Join the Kubernetes slack using the following link Step Join the litmus channel on the Kubernetes slack or use this link after joining the Kubernetes slack Looking forward to see all the amazing folks from the open source world Here are some important links for your reference LitmusChaos Website LitmusChaos GitHub Repo LitmusChaos Docs LitmusChaos YouTube Channel	2022-02-18 09:08:06
海外TECH	DEV Community	Introduction to Data Structures and Algorithms With Python	https://dev.to/killallnano/introduction-to-data-structures-and-algorithms-with-python-33c9	Introduction to Data Structures and Algorithms With PythonThis article is a continuation of Python Introduction to Modern Python where we introduced set up and gave some basic understanding of the python In this article we will discuss about the various data structures in Python such as lists dictionaries tuples sets queues stack linked list etc What is a data Structure This is a particular way of organizing data in computer so that it can be accessed used processed effectively What is a data Algorithm This is a finite sequence of steps instructions on how to perform a task run an obligation or solve a problem Its Important in that it can enable one to estimate the amount of resources that will be needed during implementation Types of Data Structures in PythonData structures in python are divided into Inbuilt data structure These types of data structures include lists dictionaries tuples sets User defined Data structures These types of data structures includes queues stack linked list tree linked list graph and HashMap They can also be categorized into linear or non linear data structures where in Linear data structures the arrangements of data is in sequence manner e g List Linked list Queue Stack etc while in Non linear structures one element or node is connected to n number of elements e g tree and graphs ListPython Lists are just like the arrays declared in other languages which is an ordered collection of data It is very flexible as the items in a list do not need to be of the same type The implementation of Python List is similar ArrayList in JAVA The costly operation is inserting or deleting the element from the beginning of the List as all the elements are needed to be shifted These two operation usually takes order on n i e O n meaning the larger the size the longer the time taken Example of a list in Python is as shown below Python main Dec GCC on linuxType help copyright credits or license for more information gt gt gt mylist Jeff Ous gt gt gt print mylist Output Jeff Ous List elements are accessed by the assigned index Starting index of the list is and the ending index is n where n is the number of elements E g to access Jeff in the above example we use print mylist this will output Jeff and print mylist will output Adding ElementsAdding the elements in the list can be achieved using the append extend and insert functions The append function adds all the elements passed to it as a single element The extend function adds the elements one by one into the list The insert function adds the element passed to the index value and increase the size of the list too mylist append mylist extend Smart mylist insert Lux print mylist Output Jeff Lux Ous S m a r t Other methods associated with List are del for deletion len function returns the length of the list index function that finds the index value of value passed where it has been encountered count function finds the count of the value passed to it sorted and sort functions sort the values of the list and sorted has a return type whereas the sort modifies the original list DictionariesDictionaries are used to store key value pairs It is an unordered collection of data values used to store data values like a map Key value is provided in the dictionary to make it more optimized Indexing of Python Dictionary is done with the help of keys These are of any hashable type We can create a dictionary by using curly braces or dictionary Sample Code Python main Dec GCC on linuxType help copyright credits or license for more information gt gt gt dictionary Jeff Odhiambo Lux Academy Laurent Ous gt gt gt print dictionary Output Jeff Odhiambo Lux Academy Laurent Ous Accessing individual elements in a dictionary we can use the key e g we can use to access Jeff Odhiambo e g run print dictionary get lt key gt i e print dictionary get will print Jeff Odhiambo print dictionary get will print Lux Academy gt gt gt print dictionary get Jeff Odhiambo gt gt gt print dictionary get Lux Academy gt gt gt print dictionary get Laurent Ous gt gt gt TuplesA tuple is an immutable data type in python almost similar to a list in python in terms of indexing and having duplicate members It stores python objects separated by commas Following is an example of how we can create or declare a tuple in python gt gt gt tuple Jeff LUX gt gt gt tuple gt gt gt print tuple tuple Output Jeff LUX gt gt gt Accessing items in a tuple is similar to a list we can access elements in a tuple using indexes We can specify the index value and it will return the item stored at that particular index value e g print tuple will output Jeff Other operations such as slicing using the slicing operator changing concatenating two tuples deletion can be performed on a tuple SetsA set is a data type consisting of a collection of unordered elements These elements can be on any data types as sets i e they are not type specific Sets are mutable changeable and do not have repeated copies of elements The values of a set are unindexed therefore indexing operations cannot be performed on sets Sample Code gt gt gt set Jeff G gt gt gt print set Jeff G When you try to access an object using index in a set you get set object is not subscriptable this confirms the point that indexing operation cant be performed on set gt gt gt print set Traceback most recent call last File lt stdin gt line in lt module gt TypeError set object is not subscriptable gt gt gt Since value in set can t be accessed using index we can loop through it to access elements and display them as shown below gt gt gt for setvalues in set print setvalues JeffG gt gt gt We can also add values to set using the update method remove items in the set using remove discard and the pop functions etc QueuesA queue is also a linear data structure that stores items in First In First Out FIFO manner With a queue the least recently added item is removed first A good example of queue is in one of the Operating system algorithm known as FIFO where the First process in the queue is the first to be executed Or in real world Queuing for service at a bank you ll be served on the basis of first come first server Operations Associated with QueueEnqueue Adds an item to the queue Dequeue Removes an item from the queue Front Get the front item from queue Rear Get the last item from queue Implementation using List┌ー jeff㉿kali └ー python Python main Dec GCC on linuxType help copyright credits or license for more information gt gt gt queue gt gt gt queue append Jeff gt gt gt queue append gt gt gt queue append LUX gt gt gt queue append gt gt gt print f Initial Queue is queue Initial Queue is Jeff LUX gt gt gt queue pop Jeff gt gt gt queue pop gt gt gt queue pop LUX gt gt gt queue pop gt gt gt print f Queue after removing element queue Queue after removing element gt gt gt StackA stack is a linear data structure that stores items in a Last In First Out LIFO or First In Last Out FILO manner In stack a new element is added ontop of the other e g is added ontop of and while removing you have to start with the top most element e g is removed first followed by The insert and delete operations are often called push and pop Associated Operations with Stack empty Returns whether the stack is empty size Returns the size of the stack top Returns a reference to the topmost element of the stack push a Inserts the element a at the top of the stack pop Deletes the topmost element of the stack Implementation using List gt gt gt stack gt gt gt stack append Jeff gt gt gt stack append gt gt gt stack append LUX gt gt gt stack append gt gt gt print f Initial stack stack Initial stack Jeff LUX gt gt gt stack pop gt gt gt stack pop LUX gt gt gt stack pop gt gt gt stack pop Jeff gt gt gt print f Stack after elements are removed stack Stack after elements are removed gt gt gt Linked listA linked list is a sequence of data elements which are connected together via links Each data element contains a connection to another data element in form of a pointer as shown below There are types of linked list Singly linked lists Doubly linked lists Circular linked lists Circular doubly linked lists Implementation of Linked Listclass Node def init self data self data data Assign data self next Noneclass LinkedList def init self self head None def printList self temp self head while temp print temp data temp temp nextif name main linked list LinkedList linked list head Node Jeff second Node third Node LUX linked list head next second second next third linked list printList OutputJeffLUX	2022-02-18 09:04:44
海外科学	NYT > Science	How A.D.H.D. Can Affect Your Relationships	https://www.nytimes.com/2022/02/18/well/mind/adhd-dating-relationships.html	attention	2022-02-18 10:00:20
金融	金融庁ホームページ	入札公告等を更新しました。	https://www.fsa.go.jp/choutatu/choutatu_j/nyusatu_menu.html	公告	2022-02-18 10:00:00
金融	ニッセイ基礎研究所	円相場のカギを握る米金融引き締めとウクライナ情勢～マーケット・カルテ３月号	https://www.nli-research.co.jp/topics_detail1/id=70246?site=nli	円相場のカギを握る米金融引き締めとウクライナ情勢マーケット・カルテ月号今月のドル円は米金融引き締め前倒し観測に伴う米金利上昇がドル高圧力になる一方で、金融引き締めによる米景気の減速懸念やウクライナ情勢緊迫化に伴うリスク回避的な円買い等がドル高の進行を抑制する形となった。	2022-02-18 18:56:13
海外ニュース	Japan Times latest articles	COVID tests still in short supply in Japan despite peak of sixth wave	https://www.japantimes.co.jp/news/2022/02/18/national/covid-tests-shortages/	COVID tests still in short supply in Japan despite peak of sixth waveMany pharmacies and doctors are complaining that they cannot get hold of PCR or antigen tests but there are signs that supply will soon improve	2022-02-18 18:40:58
海外ニュース	Japan Times latest articles	Kaori Sakamoto gains motivation from competing against Russian skaters	https://www.japantimes.co.jp/sports/2022/02/18/olympics/winter-olympics/olympics-figure-skating/sakamoto-russians/	Kaori Sakamoto gains motivation from competing against Russian skaters But I feel fortunate to be in an environment where I m able to compete against next level skaters Russia gives me something to chase the year old	2022-02-18 18:21:53
ニュース	BBC News - Home	Storm Eunice: Millions across UK told to stay home as severe winds hit	https://www.bbc.co.uk/news/uk-60426382?at_medium=RSS&at_campaign=KARANGA	networks	2022-02-18 09:49:50
ニュース	BBC News - Home	Covid pass: Wales' law for cinemas and nightclubs ends	https://www.bbc.co.uk/news/uk-wales-politics-60417333?at_medium=RSS&at_campaign=KARANGA	negative	2022-02-18 09:48:48
ニュース	BBC News - Home	Winter Olympics: Watch what happens when you mix the curling with snowboarding commentary	https://www.bbc.co.uk/sport/av/winter-olympics/60420509?at_medium=RSS&at_campaign=KARANGA	Winter Olympics Watch what happens when you mix the curling with snowboarding commentaryWatch what happens when you mix the curling highlights with some of the best commentary from snowboarding commentators Ed Leigh and Tim Warwood at the Winter Olympics	2022-02-18 09:13:59
ニュース	BBC News - Home	What are the Covid rules in England, Scotland, Wales and Northern Ireland?	https://www.bbc.co.uk/news/explainers-52530518?at_medium=RSS&at_campaign=KARANGA	covid	2022-02-18 09:41:17
ビジネス	ダイヤモンド・オンライン - 新着記事	アグレ都市デザイン、2期連続の「増配」を発表して、 配当利回り4.9％に！ 年間配当は2年で3.5倍に急増、 2022年3月期は前期比21円増の｢1株あたり63円｣に！ - 配当【増配・減配】最新ニュース！	https://diamond.jp/articles/-/296876	アグレ都市デザイン、期連続の「増配」を発表して、配当利回りに年間配当は年で倍に急増、年月期は前期比円増の「株あたり円」に配当【増配・減配】最新ニュースアグレ都市デザインが、年月期の配当予想の修正増配を発表し、配当利回りがにアグレ都市デザインは、年月期の年間配当を前回予想比で「円」の増配、前期比では「円」の増配となる「株あたり円」に修正すると発表した。	2022-02-18 19:00:00
ビジネス	不景気.com	大幸薬品の21年12月期は95億円の赤字、クレベリン需要減で - 不景気.com	https://www.fukeiki.com/2022/02/taiko-yakuhin-2021-loss2.html	大幸薬品	2022-02-18 09:56:46
北海道	北海道新聞	ひも状ｉＰＳ網膜、移植へ　臨床研究で定着率の向上を期待	https://www.hokkaido-np.co.jp/article/647420/	記者	2022-02-18 18:05:00
北海道	北海道新聞	国内物価、春に上昇率２％接近も　経済好転へ賃上げが鍵	https://www.hokkaido-np.co.jp/article/647419/	全国消費者物価指数	2022-02-18 18:05:00
北海道	北海道新聞	「孫に車両の写真を」書類送検　７０代女性線路侵入疑い	https://www.hokkaido-np.co.jp/article/647418/	書類送検	2022-02-18 18:02:00
ビジネス	東洋経済オンライン	下落しているアメリカ株はどこで下げ止まるのか 株価下落の主要因はウクライナ問題ではない | インフレが日本を救う | 東洋経済オンライン	https://toyokeizai.net/articles/-/512732?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2022-02-18 18:30:00
IT	週刊アスキー	アクションRPG『BABYLON’S FALL』の公式生放送#04が、2月23日22時より配信決定	https://weekly.ascii.jp/elem/000/004/083/4083959/	babylon	2022-02-18 18:40:00
IT	週刊アスキー	料理研究家の土井善晴氏が「食文化の豊かさ」を京都大学研究者らと語るセミナーが開催（2/24・参加無料）	https://weekly.ascii.jp/elem/000/004/083/4083947/	京都大学	2022-02-18 18:30:00
IT	週刊アスキー	ファミリーマート、予約必須のプレミアム弁当2品がリニューアル 3日前の申し込み必須	https://weekly.ascii.jp/elem/000/004/083/4083897/	申し込み	2022-02-18 18:15:00
IT	週刊アスキー	映画「アンチャーテッド」公開記念！YouTube動画クリエイターによるアンチャーテッドが「超わかる」映像が公開	https://weekly.ascii.jp/elem/000/004/083/4083954/	youtube	2022-02-18 18:15:00