Редко можно увидеть геометрию на олимпиаде под первым номером. Но вот в юниорской лиге была как раз такая. Даны два равных квадрата. Доказать, что один красный отрезок равен сумме двух других! Если автор этой задачи не фольклор, то Александр Смирнов.
Редко можно увидеть геометрию на олимпиаде под первым номером. Но вот в юниорской лиге была как раз такая. Даны два равных квадрата. Доказать, что один красный отрезок равен сумме двух других! Если автор этой задачи не фольклор, то Александр Смирнов.
Russians and Ukrainians are both prolific users of Telegram. They rely on the app for channels that act as newsfeeds, group chats (both public and private), and one-to-one communication. Since the Russian invasion of Ukraine, Telegram has remained an important lifeline for both Russians and Ukrainians, as a way of staying aware of the latest news and keeping in touch with loved ones. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. As a result, the pandemic saw many newcomers to Telegram, including prominent anti-vaccine activists who used the app's hands-off approach to share false information on shots, a study from the Institute for Strategic Dialogue shows. It is unclear who runs the account, although Russia's official Ministry of Foreign Affairs Twitter account promoted the Telegram channel on Saturday and claimed it was operated by "a group of experts & journalists." Although some channels have been removed, the curation process is considered opaque and insufficient by analysts.
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