На Codeforces сегодня стартует новогодний спешл раунд — Hello 2025.
Все задачки подготовили преподаватели, ученики и друзья Т-Поколения. Если фанатеете по спортивному программированию — это классная возможность потренироваться на крутейшей платформе по кодингу.
Всё начнется сегодня в 17:35, не забудьте поставить напоминалку.
На Codeforces сегодня стартует новогодний спешл раунд — Hello 2025.
Все задачки подготовили преподаватели, ученики и друзья Т-Поколения. Если фанатеете по спортивному программированию — это классная возможность потренироваться на крутейшей платформе по кодингу.
Всё начнется сегодня в 17:35, не забудьте поставить напоминалку.
Since its launch in 2013, Telegram has grown from a simple messaging app to a broadcast network. Its user base isn’t as vast as WhatsApp’s, and its broadcast platform is a fraction the size of Twitter, but it’s nonetheless showing its use. While Telegram has been embroiled in controversy for much of its life, it has become a vital source of communication during the invasion of Ukraine. But, if all of this is new to you, let us explain, dear friends, what on Earth a Telegram is meant to be, and why you should, or should not, need to care. Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders. This ability to mix the public and the private, as well as the ability to use bots to engage with users has proved to be problematic. In early 2021, a database selling phone numbers pulled from Facebook was selling numbers for $20 per lookup. Similarly, security researchers found a network of deepfake bots on the platform that were generating images of people submitted by users to create non-consensual imagery, some of which involved children. The original Telegram channel has expanded into a web of accounts for different locations, including specific pages made for individual Russian cities. There's also an English-language website, which states it is owned by the people who run the Telegram channels. On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events."
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