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Problem Description There is a point P at coordinate (x,y). A line goes through the point, and intersects with the postive part of X,Y axes at point A 阅读全文
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Problem DescriptionYou are givenNsets.Thei−th set hasAinumbers.You should divide the sets intoLparts.And each part should have at least one number in ... 阅读全文
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Problem DescriptionThere are many unsolvable problem in the world.It could be about one or about zero.But this time it is about bigger number. Given a... 阅读全文
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DescriptionJimmy writes down the decimal representations of all natural numbers between and including m and n, (m ≤ n). How many zeroes will he write ... 阅读全文
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PearlsTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2018Accepted Submission(s): 953 Problem Des... 阅读全文
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Problem Description搬寝室是很累的,xhd深有体会.时间追述2006年7月9号,那天xhd迫于无奈要从27号楼搬到3号楼,因为10号要封楼了.看着寝室里的n件物品,xhd开始发呆,因为n是一个小于2000的整数,实在是太多了,于是xhd决定随便搬2*k件过去就行了.但还是会很累,因... 阅读全文