А так, это же просто Erdos-Sos problem, частный случай В общем виде то открытая проблема, обычно ее решают для больших n, но если n определенного вида, то результаты бывают и для всех n Например, вот тут похожее было
А так, это же просто Erdos-Sos problem, частный случай В общем виде то открытая проблема, обычно ее решают для больших n, но если n определенного вида, то результаты бывают и для всех n Например, вот тут похожее было
He said that since his platform does not have the capacity to check all channels, it may restrict some in Russia and Ukraine "for the duration of the conflict," but then reversed course hours later after many users complained that Telegram was an important source of information. One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals. At this point, however, Durov had already been working on Telegram with his brother, and further planned a mobile-first social network with an explicit focus on anti-censorship. Later in April, he told TechCrunch that he had left Russia and had “no plans to go back,” saying that the nation was currently “incompatible with internet business at the moment.” He added later that he was looking for a country that matched his libertarian ideals to base his next startup. Some people used the platform to organize ahead of the storming of the U.S. Capitol in January 2021, and last month Senator Mark Warner sent a letter to Durov urging him to curb Russian information operations on Telegram. Founder Pavel Durov says tech is meant to set you free
from ua
