第四条 船舶经依法登记取得中华人民共和国国籍,有权悬挂中华人民共和国国旗航行。
Москвичей предупредили о резком похолодании09:45
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There are trivial cases, like a screw driver of varying length or the width of a table. Traditional geometric constraints can suffice here. But what if we want a key based of a list of numbers describing the heights of a lock's pins? Now we need programming.
So, what's behind these numbers? Mashable producer Teodosia Dobriyanova takes a look in the video above.
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