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Cow Exhibition [POJ2184] [DP] [背包的负数处理]
题意: 有很多羊,每只羊有一个幽默度和智商,要选出一些羊,智商加幽默度总和最大,其中智商总和和幽默度总和都不能是负数。 样例输入: 5 -5 7 8 -6 6 -3 2 1 -8 -5 样例输出: 8 分析: 这很像一个01背包题,但是有两个价值,却没有重量 我们就把其中一个看成重量,另一个看成价值 ...
分类:其他好文   时间:2018-06-24 00:53:18    阅读次数:157
Popular Cows//强连通分支Kosaraju加缩点
题目: Popular Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 38415 Accepted: 15658 Description Every cow's dream is to become the most ...
分类:其他好文   时间:2018-06-24 00:43:36    阅读次数:167
KVM 快照
kvm快照 # virsh shutdown kvm1 # qemu-img info /var/lib/libvirt/images/kvm1.img raw格式是不支持snapshot功能,所以我们需要转换成象qcow2这种支持snapshot功能的格式(rhel7,cenots7已经默认是qc ...
分类:其他好文   时间:2018-06-19 22:44:46    阅读次数:203
牛飞盘队Cow Frisbee Team
老唐最近迷上了飞盘,约翰想和他一起玩,于是打算从他家的N头奶牛中选出一支队伍。 每只奶牛的能力为整数,第i头奶牛的能力为R i 。飞盘队的队员数量不能少于 1、大于N。 一支队伍的总能力就是所有队员能力的总和。 约翰比较迷信,他的幸运数字是F,所以他要求队伍的总能力必须是F的倍数。请帮他 算一下,符 ...
分类:其他好文   时间:2018-06-18 21:49:27    阅读次数:163
Cheapest Palindrome(区间DP)
描述 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 ...
分类:其他好文   时间:2018-06-15 22:43:19    阅读次数:213
Bone Collector(01背包)
Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s ...
分类:其他好文   时间:2018-06-15 22:37:54    阅读次数:136
Cow Exhibition (01背包)
"Fat and docile, big and dumb, they look so stupid, they aren't much fun..." - Cows with Guns by Dana Lyons The cows want to prove to the public that ...
分类:其他好文   时间:2018-06-15 22:35:09    阅读次数:159
P2870 [USACO07DEC]最佳牛线,黄金Best Cow Line, Gold
题目描述 FJ is about to take his N (1 ≤ N ≤ 30,000) cows to the annual"Farmer of the Year" competition. In this contest every farmer arranges his cows in ...
分类:其他好文   时间:2018-06-12 18:34:04    阅读次数:157
POJ3278 Catch That Cow(BFS)
给定两个整数n和k,通过 n+1或n-1 或n*2 这3种操作,使得n==k 输出最少的操作次数 ...
分类:其他好文   时间:2018-06-12 17:43:09    阅读次数:104
P2852 [USACO06DEC]牛奶模式Milk Patterns
题目描述 Farmer John has noticed that the quality of milk given by his cows varies from day to day. On further investigation, he discovered that although ...
分类:其他好文   时间:2018-06-11 18:59:32    阅读次数:130
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