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Problem DescriptionThe doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and... 阅读全文
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Problem DescriptionThere was no donkey in the province of Gui Zhou, China. A trouble maker shipped one and put it in the forest which could be conside... 阅读全文
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Problem DescriptionThanks to a certain "green" resources company, there is a new profitable industry of oil skimming. There are large slicks of crude ... 阅读全文
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Problem DescriptionLuxer is a really bad guy. He destroys everything he met. One day Luxer went to D-city. D-city has N D-points and M D-lines. Each D... 阅读全文
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Problem DescriptionLong long ago, there is a gunner whose name is Jack. He likes to go hunting very much. One day he go to the grove. There are n bird... 阅读全文
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Problem DescriptionThe annual school bicycle contest started. ZL is a student in this school. He is so boring because he can't ride a bike!! So he dec... 阅读全文
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Problem DescriptionThere are n balls with m colors. The possibility of that the color of the i-th ball is color j is ai,jai,1+ai,2+...+ai,m. If the nu... 阅读全文
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Problem DescriptionSome of the secret doors contain a very interesting word puzzle. The team of archaeologists has to solve it to open that doors. Bec... 阅读全文
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Problem DescriptionGiven a matrix with n rows and m columns ( n+m is an odd number ), at first , you begin with the number at top-left corner (1,1) an... 阅读全文
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问题描述给定长度为n的序列a，求有多少对i,j(i 3 #include 4 #include 5 #include 6 #include 7 #include 8 #include 9 #include10 #include11 #include12 #include13 #include14 #... 阅读全文