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Best Time to Buy and Sell Stock III
Best Time to Buy and Sell Stock IIISay you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the...
分类:其他好文   时间:2014-10-26 22:43:56    阅读次数:178
hdu-5083-Instruction
这道题就是一个模拟题,所以写代码时要有清晰的思路,一开始我思路很清晰,结果由于时间原因,代码敲反了.....   题目的输入是有多组的,每一组有两行,第一行是命令,第二行是一串字符串! 所以这道题有两个操作: 当输入 1 的时候表示:将第二行所输入的命令翻译为16位2进制; 当输入 0 的时候表示:将第二行所输入的16位2进制翻译为命令;   先说下怎么将命令翻译为2进制:eg:AD...
分类:其他好文   时间:2014-10-26 18:29:57    阅读次数:146
hdu-5082
题意很简单,就是给出父母的名字,然后根据父母的名字来给孩纸取名字! 可以将此题简化为: 孩纸的名字=父亲的frist name+字符串(_small_)+母亲额frist name; 然后将孩纸的名字输出即可!...
分类:其他好文   时间:2014-10-26 17:00:58    阅读次数:154
nDCG学习笔记
参考:http://en.wikipedia.org/wiki/Discounted_cumulative_gainNormalized Discounted Cumulative Gain:一种对搜索引擎或相关程序有效性的度量。2个假设: 1.强相关的文档出现在结果列表越靠前(rank越高)越有....
分类:其他好文   时间:2014-10-25 22:43:13    阅读次数:341
HDU 3001 Travelling(DP状态压缩)
Problem Description After coding so many days,Mr Acmer wants to have a good rest.So travelling is the best choice!He has decided to visit n cities(he insists on seeing all the cities!And he does no...
分类:其他好文   时间:2014-10-24 13:01:58    阅读次数:279
PIC2, Rank-Order Plots, Lift Charts and Pareto chart
In cases like this, where the independent variable does not have an intrinsic ordering, it isoften a good idea to sort entries by the dependent variab...
分类:其他好文   时间:2014-10-24 12:32:15    阅读次数:233
Best Time to Buy and Sell Stock II
Best Time to Buy and Sell Stock IISay you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the ...
分类:其他好文   时间:2014-10-23 12:23:23    阅读次数:224
poj 3261 二分答案+后缀数组 求至少出现k次的最长重复子序列
1 #include "stdio.h" 2 #define maxn 20010 3 4 int wa[maxn],wb[maxn],wv[maxn],ws[maxn]; 5 int rank[maxn],height[maxn]; 6 int r[maxn],sa[maxn],ans[max.....
分类:编程语言   时间:2014-10-23 12:20:11    阅读次数:194
Best Time to Buy and Sell Stock
Best Time to Buy and Sell StockSay you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to compl...
分类:其他好文   时间:2014-10-22 21:54:00    阅读次数:192
SQL 排序的N种方法
一、手工查询得出名次select * ,select count(*)+1 from T2 where T2.[成绩] > T1.[成绩] as 名次 from T1结果:12335二、SQL Server 2005 的排序函数 ROW_NUMBER、RANK、DENSE_RANK1.ROW_NUM...
分类:数据库   时间:2014-10-20 13:06:40    阅读次数:197
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