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C3. Brain Network (hard) Breaking news from zombie neurology! It turns out that – contrary to previous beliefs – every zombie is born with a single br 阅读全文
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2-3 Trees Problem Description 2-3 tree is an elegant data structure invented by John Hopcroft. It is designed to implement the same functionality as t 阅读全文
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C. Dima and Salad Dima, Inna and Seryozha have gathered in a room. That's right, someone's got to go. To cheer Seryozha up and inspire him to have a w 阅读全文
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C. Logo Turtle A lot of people associate Logo programming language with turtle graphics. In this case the turtle moves along the straight line and acc 阅读全文