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time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAmr loves Chemistry, and speciall... 阅读全文
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Mike is the president of country What-The-Fatherland. There are n bears living in this country besides Mike. All of them are standing ... 阅读全文
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DescriptionA histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widt... 阅读全文
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DescriptionBill is developing a new mathematical theory for human emotions. His recent investigations are dedicated to studying how go... 阅读全文
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DescriptionSome of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hair day! Since each cow is self-conscious about her messy h... 阅读全文
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D. Soldier and Number Gametime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputTwo so... 阅读全文
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Kyoya Ootori has a bag with n colored balls that are colored with k different colors. The colors are labeled from 1 to k. Balls of the... 阅读全文
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Problem DescriptionHappy New Term!As having become a junior, xiaoA recognizes that there is not much time for her to AC problems, beca... 阅读全文
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DescriptionDearboy was so busy recently that now he has piles of clothes to wash. Luckily, he has a beautiful and hard-working girlfri... 阅读全文
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DescriptionGigel has a strange "balance" and he wants to poise it. Actually, the device is different from any other ordinary balance. ... 阅读全文