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Hot Days Codeforces Round #132 (Div. 2) D(贪心)
Description The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1?≤?i?≤?n) region has...
分类:其他好文   时间:2014-11-04 17:33:03    阅读次数:169
hdu 5092 Seam Carving
这道题 我没看出来 他只可以往下走,我看到的8-connected ;所以今天写一下如果是8-connected 怎么解;其实说白了这个就是从上到下走一条线到达最后一行的距离最小; 从Map【a】【b】 到Map【a】【b+1】 的距离是Map【a】【b+1】 以此类推:建图即可;然后在加一个点.....
分类:其他好文   时间:2014-11-03 13:00:19    阅读次数:264
ORA-12631 / TNS-12631: Username retrieval failed
From Metalink:Problem Description:====================When your server is not connected to the network and you try to connect inServer Manager (svrmgr...
分类:其他好文   时间:2014-11-02 16:12:41    阅读次数:196
最小日志量的insert操作
--1.实验环境 SQL> conn scott/tiger Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 Connected as scott@howe SQL> drop table record p...
分类:其他好文   时间:2014-10-31 22:09:46    阅读次数:169
UVA 818 Cutting Chains (DFS)
What a find! Anna Locke has just bought several links of chain some of which may be connected. They are made from zorkium, a material that was frequently used to manufacture jewelry in the last centur...
分类:其他好文   时间:2014-10-31 01:15:29    阅读次数:242
HDU 2196 Computer(树形DP求最长路)
Problem Description A school bought the first computer some time ago(so this computer's id is 1). During the recent years the school bought N-1 new computers. Each new computer was connected to one...
分类:其他好文   时间:2014-10-25 18:51:08    阅读次数:133
NYOJ129 树的判定 【并查集】
树的判定 时间限制:1000 ms  |  内存限制:65535 KB 难度:4 描述 A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by directed edge...
分类:其他好文   时间:2014-10-17 09:23:24    阅读次数:172
【用户连接】
1.本地连接 SQL> conn scott/tiger Connected. SQL> select sid,server from v$sessionwhere username='SCOTT'; SID    SERVER ---------- --------- 42     DEDICATED   SQL> select sid,server,paddr,processf...
分类:其他好文   时间:2014-10-17 02:26:23    阅读次数:200
【学习笔记】Python网络编程(一)
server端:importsocket#导入socket模块 s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) host=‘‘ port=6074 s.bind((host,port))#绑定主机和端口 s.listen(5)#监听传入连接,操作系统可以挂起的最大连接数 conn,addr=s.accept()#接受连接并返回(conn,addr)conn用来接..
分类:编程语言   时间:2014-10-15 16:19:51    阅读次数:161
Light OJ 1373 Strongly Connected Chemicals 二分匹配最大独立集
m种阳离子 n种阴离子 然后一个m*n的矩阵 第i行第j列为1代表第i种阴离子和第j种阴离子相互吸引 0表示排斥 求在阳离子和阴离子都至少有一种的情况下 最多存在多少种离子可以共存 阴阳离子都至少需要存在一种 那么可以枚举哪2种离子共存 假设枚举a b 然后找到所有的和a可以共存的阴离子(设为x集合)以及和b共存的阳离子(设为y集合)  现在只需求x集合中和y集合中最多有多少个离子可以共存 ...
分类:其他好文   时间:2014-10-11 19:55:26    阅读次数:222
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