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A. Planttime limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard outputDwarfs have planted a very interesting plant, which is a triangle directed “upwards”.

B. Jzzhu and Sequencestime limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard outputJzzhu has invented a kind of sequences, they meet the following property

1358 浮波那契基准时间限制：1 秒 空间限制：131072 KB TengBieBie已经学习了很多关于斐波那切数列的性质，所以他感到一些些厌烦。现在他遇到了一个新的数列，这个数列叫做Float-Bonacci。这里有一个关于Float-Bonacci的定义。 对于一个具体的n，TengBieBie想要快速计算FB(n). 但是TengBieBie对FB的了解非常少，所以他

HDU - 5950 - Recursive sequenceFarmer John likes to play mathematics games with his N cows. Recently, they are attracted by recursive sequences. In each turn, the cows would stand in a line, while John

HDU - 6030 - Happy NecklaceLittle Q wants to buy a necklace for his girlfriend. Necklaces are single strings composed of multiple red and blue beads. Little Q desperately wants to impress his girlfri

233 MatrixIn our daily life we often use 233 to express our feelings. Actually, we may say 2333, 23333, or 233333 … in the same meaning. And here is the question: Suppose we have a matrix called 233 ma

算法提高 递推求值 时间限制：1.0s 内存限制：256.0MB 问题描述　　已知递推公式：　　F(n, 1)=F(n-1, 2) + 2F(n-3, 1) + 5,　　F(n, 2)=F(n-1, 1) + 3F(n-3, 1) + 2F(n-3, 2) + 3.　　初始值为：F(1, 1)=2, F(1, 2)=3, F(2, 1)=1, F(2, 2)=...

Matrix Power SeriesTime Limit: 3000MSMemory Limit: 131072KTotal Submissions: 26077Accepted: 10730DescriptionGiven a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak.Inp...