BINARY TREE ZIGZAG LEVEL ORDER TRAVERSAL +========+ Time: 30 minutes - 1 hour Difficulty: Medium Languages: Any +========+ Given the root of a binary tree, implement a function that performs a zigzag level-order traversal of the tree and return a list of lists of the nodes at each level. +========+ Please answer to this message with your solution 🙂
BINARY TREE ZIGZAG LEVEL ORDER TRAVERSAL +========+ Time: 30 minutes - 1 hour Difficulty: Medium Languages: Any +========+ Given the root of a binary tree, implement a function that performs a zigzag level-order traversal of the tree and return a list of lists of the nodes at each level. +========+ Please answer to this message with your solution 🙂
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I have no inside knowledge of a potential stock listing of the popular anti-Whatsapp messaging app, Telegram. But I know this much, judging by most people I talk to, especially crypto investors, if Telegram ever went public, people would gobble it up. I know I would. I’m waiting for it. So is Sergei Sergienko, who claims he owns $800,000 of Telegram’s pre-initial coin offering (ICO) tokens. “If Telegram does a SPAC IPO, there would be demand for this issue. It would probably outstrip the interest we saw during the ICO. Why? Because as of right now Telegram looks like a liberal application that can accept anyone - right after WhatsApp and others have turn on the censorship,” he says.
Telegram has exploded as a hub for cybercriminals looking to buy, sell and share stolen data and hacking tools, new research shows, as the messaging app emerges as an alternative to the dark web.An investigation by cyber intelligence group Cyberint, together with the Financial Times, found a ballooning network of hackers sharing data leaks on the popular messaging platform, sometimes in channels with tens of thousands of subscribers, lured by its ease of use and light-touch moderation.Programming Challenges How to be a breathtaking Programmer from cn
