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B. Rebrandingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe name of one small but proud cor... 阅读全文
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C. Duff and Weight Liftingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputRecently, Duff has been... 阅读全文
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DescriptionThink about a plane:● One straight line can divide a plane into two regions.● Two lines can divide a plane into at most four regions.● Thre... 阅读全文
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UsoperantoUsoperanto is an artificial spoken language designed and regulated by Usoperanto Academy. The academy is now in study to establish Strict Us... 阅读全文
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frog hasnintegersa1,a2,…,an, and she wants to add them pairwise.Unfortunately, frog is somehow afraid of carries (进位). She defines \emph{hardness}h(x,... 阅读全文
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POJ 1182 食物链http://acm.pku.edu.cn/JudgeOnline/problem?id=1182题目告诉有3种动物，互相吃与被吃，现在告诉你m句话，其中有真有假，叫你判断假的个数(如果前面没有与当前话冲突的，即认为其为真话)这题有几种做法，我以前的做法是每个集合(或者称为子... 阅读全文
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详细讲解： http://blog.csdn.net/acosoft/article/details/4395468 阅读全文