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POJ 3280 Cheapest Palindrome (DP)
?? Description Keeping track of all the cows can be a tricky task so Farmer John has installed a system to automate it. He has installed on each cow an electronic ID tag that the system will read ...
分类:其他好文   时间:2014-07-29 13:22:46    阅读次数:212
poj3280题解
Cheapest PalindromeTime Limit: 2000MSMemory Limit: 65536K Total Submissions: 5627Accepted: 2734 DescriptionKeeping track of all the cows can be a tric...
分类:其他好文   时间:2014-07-29 11:23:06    阅读次数:272
POJ 1948 Triangular Pastures(DP)
Description Like everyone, cows enjoy variety. Their current fancy is new shapes for pastures. The old rectangular shapes are out of favor; new geometries are the favorite. I. M. Hei, the lead c...
分类:其他好文   时间:2014-07-28 15:57:14    阅读次数:287
linux基本命令操作(二)
·du命令使用:[root@localhostboot]#du//后没有选项和参数,默认评估当前目录下的所有目录的大小,当然也包括当前目录的大小//237./grub12./lost+found6555.[root@localhostboot]#lsconfig-2.6.18-348.el5initrd-2.6.18-348.el5.imgSystem.map-2.6.18-348.el5file1.txt]lost+f..
分类:系统相关   时间:2014-07-28 00:38:31    阅读次数:420
poj 2186 Popular Cows 强连通缩点
【题意】;给出一群牛中,一头牛认为另一头牛受欢迎的m对关系,关系式可以传递的,即若a认为b受欢迎,b认为c受欢迎,那么a也认为c受欢迎。求最多有多少头牛被所有的牛认为受欢迎。【思路】:把这些关系形成的强连通图缩成点,就形成了一有向无环图,这个图里的出度为0的点(有且只有一个)就是被所有牛认为受欢迎的...
分类:其他好文   时间:2014-07-27 21:28:45    阅读次数:250
POJ3264
基础 Time Limit:5000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the s...
分类:其他好文   时间:2014-07-27 11:47:53    阅读次数:229
[ACM] POJ 3270 Cow Sorting (置换,贪心)
Cow Sorting Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 5946   Accepted: 2263 Description Farmer John's N (1 ≤ N ≤ 10,000) cows are lined up to be milk...
分类:其他好文   时间:2014-07-27 11:19:42    阅读次数:354
USACO2013January(乱做)
由于不清楚来源,题目乱放: Problem 1: Mirrors [Brian Dean and Travis Hance, 2013]Farmer John's cows have been causing too much trouble around the farm, andFJ ther....
分类:其他好文   时间:2014-07-27 09:46:22    阅读次数:552
RHEL7 recover/reset root password
If you have lost or forgot root password of RHEL7, you can follow this step to change to a new password, this is different with the RHEL6 single-user mode...
分类:其他好文   时间:2014-07-26 02:49:36    阅读次数:276
POJ--2481--Cows【线段树】
链接 :http://poj.org/problem?id=2481 题意:一条直线上长满了三叶草,有n头牛,每头牛都有喜欢的一段三叶草区间 [ si , ei ] ,如果一头牛喜欢的区间包含了另一头牛喜欢的区间,则说明前者比后者强壮,问对于每头牛各有多少头牛比他强壮。 这道题排序之后就是线段树区间查询的裸题,排序:对区间初始位置从小到大排,对区间结束位置从大到小排,然后依次开始遍历,...
分类:其他好文   时间:2014-07-26 02:03:36    阅读次数:212
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