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In this article, we discuss the postorder traversal of a binary tree. What does postorder traversal mean? It means that at first, we process the left subtree of the node, then the right subtree of the node, and only after that we process the node itself.Why would we need to do it in this order? This approach solves an entire class of algorithmic problems related to the binary trees. For example, to find the longest path between two nodes we need to traverse the tree in a postorder manner. In general, postor
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Image: Cath Virginia / The Verge These days, Black Friday isnât so much a single-day shopping holiday as it is an ever-expanding, monthslong event that often begins as early as October. The 24-hour deal blitz that once was the focus of newspaper headlines and mobs outside of stores is no more, which makes knowing when and where you should be spending your cash all the more confusing. Luckily, weâre here... Read more âș
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BI's Workforce Innovation Board discusses how DEI can innovate by tapping artificial intelligence and focusing on outcomes. Read more âș
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The Tesla CEO went after the F-35, calling crewed fighter jets "obsolete in the age of drones," but uncrewed technology isn't there yet. Read more âș
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Expanded tariffs on imports from China and other trade partners are part of President-elect Donald Trumpâs economic plans once he takes office in January. Though he claims his protectionist trade policy will bring jobs back to the US, Trumpâs tariffs will come at a steep cost to consumers and the economy as a whole. âWeâre [âŠ] Read more âș
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Israeli Prime Minister Benjamin Netanyahu said his forces will attack Hezbollah if it violates the agreement. Read more âș
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Bitcoin suffered a steep decline four years ago around Thanksgiving after being turned away at the $20,000 level.The action this year after failing at $100,000 is similar, though less severe so far.Those who bought the dip in 2020 didn't have to wait long to be rewarded. Read more âș
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This SK Hynix Tube T31 external solid-state flash drive is now available for $30 off retail price. Read more âș
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Trump warned of a 25% tariff on goods from Mexico and Canada and a 10% tariff on imports from China. Here are the goods that could be impacted. Read more âș
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You canât even buy a bag of chips for $1 anymore. | Illustration by Alex Castro / The Verge Hulu is again running one of the best streaming deals weâve seen in Black Friday sales. Now through December 2nd, new and returning (after more than one month) Hulu subscribers can get ad-supported access to the streaming service for $.99 a month ($9 off) for an entire year at Hulu. You... Read more âș
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Drake's company Frozen Moments has filed a petition claiming that Universal Music Group and Spotify falsely boosted Kendrick Lamar's "Not Like Us." Read more âș
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The U.S. Treasury Department's researchers were watching out for crypto risks, but they found digital assets enthusiasts with otherwise low incomes were buying homes in recent years at a high rate.The high-crypto, poor areas have apparently used crypto gains to obtain mortgages and car loans, the Office of Financial Research found, but the delinquency rates on the debt have been low. This cohort of the population is still worth watching... Read more âș
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The rapper's music company has accused Kendrik Lamar's label of artificially inflating the popularity of the song "Not Like Us' using bots and illegal payment schemes. Read more âș
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![[Translation] PostgreSQL 18: Part 1 or CommitFest 2024-07](https://times42.com/media/6/3/6/9539636_640x200.jpg "[Translation] PostgreSQL 18: Part 1 or CommitFest 2024-07")
This article is the first in the series about the upcoming PostgreSQL 18 release. Let us take a look at the features introduced in the July CommitFest. Planner: Hash Right Semi Join support Planner: materializing an internal row set for parallel nested loop join Planner support functions for generate_series EXPLAIN (analyze): statistics for Parallel Bitmap Heap Scan node workers Functions min and max for composite types Parameter names for regexp*... Read more âș
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The explicit reparameterization trick is often used to train various latent variable models due to the ease of calculating gradients of continuous random variables. However, due to its peculiarities, explicit reparameterization trick is not applicable to several important continuous standard distributions, such as mixture, Gamma, Beta and Dirichlet.An alternative method for calculating reparameterization gradients relies on implicit differentiation of cumulative distribution functions. The implicit reparame Read more âș
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1. The purpose of the IT product Telepathy â the brain-computer interface of  NueralinkThe UN General Assembly Resolution of 22.03.2024 No. A/78/L.49 âHarnessing the Potential of Safe, Secure and Trustworthy Artificial Intelligence Systems for Sustainable Developmentâ [1] confirms (paragraph 5) that"human rights and fundamental freedoms must be respected, protected and encouraged throughout the life cycle of artificial intelligence systems"and to all Member States of the United Nations and, where appropriat Read more âș
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When we go abroad for vacation or meet a foreigner on the street who doesnât speak Russian but is trying to ask, âWhere is the restroom? How do I get toâŠâ, we wonder how to explain things to them in Russian in a way they would understand. I asked myself a similar question when trying to explain something to a colleague using SQL while they were working with Java. The... Read more âș
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Napkin AI is an innovative artificial intelligence tool that transforms text descriptions into visual sketches and diagrams. Launched in 2023, this tool allows users to quickly convert their ideas into visual representations, similar to drawing on a napkin â hence the name. In this tutorial, I will walk you through its top features and provide a video demonstration. Read more Read more âș
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