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PostgreSQL对象重组工具【pg_reorg】
?? Description: pg_reorg is an utility program toreorganize tables in PostgreSQL databases. Unlike clusterdb, it doesn't blockany selections and updates during reorganization. You can choose o...
分类:数据库   时间:2014-09-01 17:47:53    阅读次数:402
hdu2680 Choose the best route 最短路(多源转单源)
此题中起点有1000个,别有20000条。用链式前向星建图,再枚举起点用SPFA的话,超时了。(按理说,两千万的复杂度应该没超吧。不过一般说计算机计算速度 1~10 千万次/秒。也许拿最烂的计算机来卡时间) 有一个技巧,加一个超级源点。也就是加一个点,使得该点连通所有的起点,并且边的权值为0。...
分类:其他好文   时间:2014-09-01 00:25:02    阅读次数:295
HDU 2680 Choose the best route
Choose the best routeTime Limit: 1000msMemory Limit: 32768KBThis problem will be judged onHDU. Original ID:268064-bit integer IO format:%I64d Java cla...
分类:其他好文   时间:2014-08-29 17:30:58    阅读次数:223
OCP试题解析之053-17 CONFIGURE CONTROLFILE AUTOBACKUP ON
17.You configure AUTOBACKUP to ON in an RMAN session. When will RMAN back up the control file? (Choose all that apply.) A. When you run an RMAN BACKUP command B. When you run an RMAN ALLOCATE comma...
分类:其他好文   时间:2014-08-28 00:53:58    阅读次数:189
Choose which tree,form view in many2one
分类:其他好文   时间:2014-08-25 18:29:54    阅读次数:175
HDU 2492 pingpang
Problem Description N(3 Each player has a unique skill rank. To improve their skill rank, they often compete with each other. If two players want to compete, they must choose a referee among oth...
分类:其他好文   时间:2014-08-23 15:27:21    阅读次数:253
hdu 2680 Choose the best route (dijkstra算法 最短路问题)
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2680Choose the best routeTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others...
分类:其他好文   时间:2014-08-20 21:05:22    阅读次数:216
前台将勾选的多个属性放到一个value里面,是一个字符串,传到后台
jq function changeStreet(a){ var valk=$(a).html(); $(a).parents(".select_box").children(".select_choose").children(".hadSelect").text(valk); $(a)...
分类:其他好文   时间:2014-08-20 19:30:12    阅读次数:219
Error: Couldn't run process C:/altera/11.0/quartus//sopc_builder/bin/sopc_builder --classic --generate F:/nios-wenjian/hellow/KERNEL.ptf successfully
Under yourQuartus II folder, go to bin->cygwin->bin folder, select the following files in the list below and then right-click and choose Properties.Un...
分类:移动开发   时间:2014-08-20 17:45:02    阅读次数:308
UVA 10375 Choose and divide(数论)
The binomial coefficient C(m,n) is defined as m! C(m,n) = -------- n!(m-n)! Given four natural numbers p, q, r, and s, compute the the result of dividing C(p,q) by C(r,s). T...
分类:其他好文   时间:2014-08-18 23:37:43    阅读次数:274
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