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Удивительно, что доклад на такую, казалось бы, простую тему может длиться час. Но там действительно огромное поле для ошибок.
При написании алгоритма поиска среднего велик соблазн сделать просто return (a + b) / 2, однако такая реализация может переполниться и привести к неопределенному поведению.
Помимо переполнения есть еще другие сложности: integer promotion при работе с short, зависящий от имплементации знак у char. Ловушки в специализации шаблонов. А кроме целых типов ведь есть еще флоты и указатели, с которыми тоже приколов хватает.
Удивительно, что доклад на такую, казалось бы, простую тему может длиться час. Но там действительно огромное поле для ошибок.
При написании алгоритма поиска среднего велик соблазн сделать просто return (a + b) / 2, однако такая реализация может переполниться и привести к неопределенному поведению.
Помимо переполнения есть еще другие сложности: integer promotion при работе с short, зависящий от имплементации знак у char. Ловушки в специализации шаблонов. А кроме целых типов ведь есть еще флоты и указатели, с которыми тоже приколов хватает.
Telegram was co-founded by Pavel and Nikolai Durov, the brothers who had previously created VKontakte. VK is Russia’s equivalent of Facebook, a social network used for public and private messaging, audio and video sharing as well as online gaming. In January, SimpleWeb reported that VK was Russia’s fourth most-visited website, after Yandex, YouTube and Google’s Russian-language homepage. In 2016, Forbes’ Michael Solomon described Pavel Durov (pictured, below) as the “Mark Zuckerberg of Russia.” 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. In a statement, the regulator said the search and seizure operation was carried out against seven individuals and one corporate entity at multiple locations in Ahmedabad and Bhavnagar in Gujarat, Neemuch in Madhya Pradesh, Delhi, and Mumbai. 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. Ukrainian forces have since put up a strong resistance to the Russian troops amid the war that has left hundreds of Ukrainian civilians, including children, dead, according to the United Nations. Ukrainian and international officials have accused Russia of targeting civilian populations with shelling and bombardments.
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