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A. Romaji A. Romaji Vitya has just started learning Berlanese language. It is known that Berlanese uses the Latin alphabet. Vowel letters are "a", "o" 阅读全文
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A 有趣的题 模拟题 B 送分题 真的是送分题 C 简单瞎搞题 一共有 n个数,第 i 个数是 xi 可以取 [li , ri] 中任意的一个值。设 ,求 S 种类数。 一共有 n个数,第 i 个数是 xi 可以取 [li , ri] 中任意的一个值。设 ,求 S 种类数。 输入描述: i i 输出 阅读全文
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A. Sonya and Hotels A. Sonya and Hotels Sonya decided that having her own hotel business is the best way of earning money because she can profit and r 阅读全文
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B Bounty Hunter II Spike the bounty hunter is tracking another criminal through space. Luckily for him hyperspace travel has made the task of visiting 阅读全文
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B Button Bashing You recently acquired a new microwave, and noticed that it provides a large number of buttons to be able to quickly specify the time 阅读全文
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A. Tanya and Stairways A. Tanya and Stairways Little girl Tanya climbs the stairs inside a multi-storey building. Every time Tanya climbs a stairway, 阅读全文
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A Choosing Ice Cream You are standing in the supermarket in front of the freezers. You have a very tough task ahead of you: you have to choose what ty 阅读全文