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и вот ещё вам олимпиадная задача. Суммирование происходит по всем четвёркам чисел (a,b,c,d) неотрицательных целых, таких, что ad-bc=1



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и вот ещё вам олимпиадная задача. Суммирование происходит по всем четвёркам чисел (a,b,c,d) неотрицательных целых, таких, что ad-bc=1

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"He has to start being more proactive and to find a real solution to this situation, not stay in standby without interfering. It's a very irresponsible position from the owner of Telegram," she said. If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats. So, uh, whenever I hear about Telegram, it’s always in relation to something bad. What gives? 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." NEWS
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