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HDU 4923 Room and Moor
Problem Description PM Room defines a sequence A = {A1, A2,..., AN}, each of which is either 0 or 1. In order to beat him, programmer Moor has to construct another sequence B = {B1, B2,... , BN} of...
分类:其他好文   时间:2014-08-07 23:18:54    阅读次数:308
HDU 4923 Room and Moor(推理+栈维护)
HDU 4924 Room and Moor 题目链接 题意:给定一个01组成的a序列,要求一个b序列,b序列每个数值为[0, 1]之间的数,并且b序列为非递减序列,要求∑(ai?bi)2最小,求这个最小值 思路:推理,很容易看出,开头一段的0和末尾一段的1等于没有,然后中间每段类似111000这样1在前,0在后的序列,都可以列出一个公式,很容易推出选择的x为共同的一个值,为1的...
分类:其他好文   时间:2014-08-07 23:17:35    阅读次数:289
HDU 4923 Room and Moor(瞎搞题)
瞎搞题啊。找出1 1 0 0这种序列,然后存起来,这种情况下最好的选择是1的个数除以这段的总和。然后从前向后扫一遍,变扫边进行合并。每次合并,合并的是他的前驱。这样到最后从t-1找出的那条链就是最后满足条件的数的大小。 Room and Moor Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 262144/262144...
分类:其他好文   时间:2014-08-07 23:12:45    阅读次数:330
HDU 4923 (贪心+证明)
Room and MoorProblem DescriptionPM Room defines a sequence A = {A1, A2,..., AN}, each of which is either 0 or 1. In order to beat him, programmer Moor...
分类:其他好文   时间:2014-08-07 22:53:15    阅读次数:293
【HDU】4923 Room and Moor(2014多校第六场1003)
Room and MoorTime Limit: 12000/6000 MS (Java/Others)Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 263Accepted Submission(s): 73Probl...
分类:其他好文   时间:2014-08-07 22:04:49    阅读次数:302
hdu4923 Room and Moor
4923Room and MoorRoom and MoorTime Limit: 12000/6000 MS (Java/Others)Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 182Accepted Submi...
分类:其他好文   时间:2014-08-07 21:56:40    阅读次数:334
hdu 4923 Room and Moor(线性表)
题目链接:hdu 4923 Room and Moor 题目大意:给定一个序列a,元素由0,1组成,求一个序列b,元素在0~1之间,并且保证递增。输出最小的∑(ai?bi)2, 解题思路:首先剔除为首的0,和末尾的1,然后将中间部分成若干段由连续1开头,连续0结尾的各个段落。对于每一段有一个最优的值x=aa+b(a为1的个数,b为0的个数),用栈维护各个段的x值,如果当前x值小于前面一...
分类:其他好文   时间:2014-08-07 18:58:30    阅读次数:277
HDU 1702 ACboy needs your help again!
Problem Description ACboy was kidnapped!!  he miss his mother very much and is very scare now.You can't image how dark the room he was put into is, so poor :(. As a smart ACMer, you want to get A...
分类:其他好文   时间:2014-08-07 09:51:09    阅读次数:262
SQL Server事物的存储过程
在酒店管理系统开发中,我们会创建房间表和房间类型表(房型表)这两个表,如下图所示:房型表:RoomType 房间表:Room 首先这两个表的关系:Room是从表,RoomType是主表,两表有主外键关系,RoomType.rTypeId=Room.rTypeId分析这两...
分类:数据库   时间:2014-08-07 00:39:57    阅读次数:264
poj 1979 Red and Black
Red and Black Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 22300   Accepted: 12041 Description There is a rectangular room, covered with square tiles. Each ...
分类:其他好文   时间:2014-08-04 21:30:48    阅读次数:263
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