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poj3070 (斐波那契,矩阵快速幂)
FibonacciTime Limit:1000MSMemory Limit:65536KTotal Submissions:9630Accepted:6839DescriptionIn the Fibonacci integer sequence,F0= 0,F1= 1, andFn=Fn? 1+...
分类:其他好文   时间:2014-10-11 23:12:36    阅读次数:310
Interview Q&A - 什么是代理?
A delegate is a reference type that can be used to encapsulate a named or an anonymous method. Delegates are similar to function pointers in C++; however, delegates are type-safe and secure....
分类:其他好文   时间:2014-10-10 15:28:24    阅读次数:190
UVA 11450 Wedding shopping(DP)
One of our best friends is getting married and we all are nervous because he is the first of us who is doing something similar. In fact, we have never assisted to a wedding, so we have no clothes o...
分类:其他好文   时间:2014-10-10 01:16:33    阅读次数:274
UML的基本图(三)
??An artifact diagramshows the physical constituents of a system on the computer. Artifacts include files, databases, and similar physical collections...
分类:其他好文   时间:2014-10-09 17:58:47    阅读次数:122
FizzBuzz and Fibonacci优化
FizzBuzz , Fibonacci优化 , 5种优化...
分类:其他好文   时间:2014-10-09 17:47:47    阅读次数:166
HDU - 3117 Fibonacci Numbers
DescriptionThe Fibonacci sequence is the sequence of numbers such that every element is equal to the sum of the two previous elements, except for the ...
分类:其他好文   时间:2014-10-07 13:38:23    阅读次数:169
HDU 4786 Fibonacci Tree(生成树,YY乱搞)
题意: 给出一个无向图,每条边都已染色(黑/白),问是否存在生成树,该生成树的白色边的数量是正的fibonacci数。 分析: 所给数据中黑边为0,白边为1,那么生成树的白边数量即为生成树的权和。 然后YY了一个做法:求其最小和最大生成树,如果在这个范围内存在fibonacci数则存在。 靠谱的证明方法一直没想出来,这里随便解释下: 对于任意一颗非最大生成树,一定可以取一条白边换一条黑边使其仍然是一颗树。...
分类:其他好文   时间:2014-10-06 22:01:01    阅读次数:208
HDU - 1588 Gauss Fibonacci (矩阵高速幂+二分求等比数列和)
DescriptionWithout expecting, Angel replied quickly.She says: "I'v heard that you'r a very clever boy. So if you wanna me be your GF, you should solve...
分类:其他好文   时间:2014-10-04 21:53:07    阅读次数:220
hdu 1848 Fibonacci again and again (SG)
题意:3堆石头,个数分别是m,n,p。两个轮流走,每走一步可以选择任意一堆石子,然后取走f个。f只能是菲波那契中的数(即1,2,3,5,8.....)取光所有石子的人胜。判断先手胜还是后手胜。思路:简单SG。看代码。代码:int sg[1005];int dfs(int x){ if(sg[x...
分类:其他好文   时间:2014-10-03 21:28:45    阅读次数:221
Saving Files
Android uses a file system that's similar to disk-based file systems on other platforms. This lesson describes how to work with the Android file system to read and write files with the FileAPIs....
分类:其他好文   时间:2014-10-01 02:01:01    阅读次数:339
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