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Intersecting LinesTime Limit:1000MSMemory Limit:10000KTotal Submissions:7897Accepted:3613DescriptionWe all know that a pair of distinct points on a plane defines a line and that a pair of lines on a plane will intersect in one of three ways: 1) no intersection because they are parallel, 2) intersect 阅读全文
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Number SequenceTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 930 Accepted Submission(s): 367Problem DescriptionA number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are to c 阅读全文
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Big Event in HDUTime Limit: 1000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1Accepted Submission(s): 1Problem DescriptionNowadays, we all know that Computer College is the biggest department in HDU. But, maybe you don't know that Computer College had ever 阅读全文
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5: DecomposeResultTIME LimitMEMORY LimitRun TimesAC TimesJUDGE3s8192K318182StandardGive you an positive integer N(1<=N<=30), you can decompose n to several positive integers: A1, A2, ... Ak. (1<=k<=N) And A1 + A2 + ... + Ak = N. Now i want to know what's the maximal product of these 阅读全文
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献给杭电五十周年校庆的礼物Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 479 Accepted Submission(s): 301Problem Description或许你曾经牢骚满腹 或许你依然心怀忧伤 或许你近在咫尺 或许你我天各一方对于每一个学子 母校 永远航行在 生命的海洋今年是我们杭电建校五十周年，这是一个值得祝福的日子。我们该送给母校一个怎样的礼物呢？对于目前的大家来说，最好的礼物当然是省赛中的好成绩，我不能参赛，就送给学 阅读全文
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Wolf and RabbitTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1289 Accepted Submission(s): 750Problem DescriptionThere is a hill with n holes around. The holes are signed from 0 to n-1.A rabbit must hide in one of the holes. A wolf searches the r 阅读全文
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汉诺塔VIITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 863 Accepted Submission(s): 642Problem Descriptionn个盘子的汉诺塔问题的最少移动次数是2^n-1,即在移动过程中会产生2^n个系列。由于发生错移产生的系列就增加了，这种错误是放错了柱子，并不会把大盘放到小盘上，即各柱子从下往上的大小仍保持如下关系 ： n=m+p+q a1>a2>...>am b1>b2> 阅读全文