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Constanze is the smartest girl in her village but she has bad eyesight. One day, she was able to invent an incredible machine! When you pronounce lett 阅读全文
posted @ 2020-02-29 18:00
DeaL57
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Little penguin Polo has an n × m matrix, consisting of integers. Let's index the matrix rows from 1 to n from top to bottom and let's index the column 阅读全文
posted @ 2020-02-29 11:03
DeaL57
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You have a garland consisting of nn lamps. Each lamp is colored red, green or blue. The color of the ii-th lamp is sisi ('R', 'G' and 'B' — colors of 阅读全文
posted @ 2020-02-29 10:10
DeaL57
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Finally, a basketball court has been opened in SIS, so Demid has decided to hold a basketball exercise session. 2⋅n2⋅n students have come to Demid's e 阅读全文
posted @ 2020-02-29 09:51
DeaL57
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A number is called quasibinary if its decimal representation contains only digits 0 or 1. For example, numbers 0, 1, 101, 110011 — are quasibinary and 阅读全文
posted @ 2020-02-29 09:07
DeaL57
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Vasya has n days of vacations! So he decided to improve his IT skills and do sport. Vasya knows the following information about each of this n days: w 阅读全文
posted @ 2020-02-29 01:11
DeaL57
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