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北大ACM2387——Til the Cows Come Home
题目的意思是求解从路标N到路标1的最短路径,简单的最短路径题目,Dijkstra或者Bellman_Ford算法都可以过。 题目有一个坑:输入有重边,所以要选择最小的长度。 下面是AC的代码: #include #include using namespace std; int cost[1005][1005]; bool vis[1005]; int dis[1005]; c...
分类:其他好文   时间:2015-05-06 17:55:23    阅读次数:120
Codeforces Round #174 (Div. 2)---D. Cow Program(dp, 记忆化搜索)
Farmer John has just given the cows a program to play with! The program contains two integer variables, x and y, and performs the following operations on a sequence a1,?a2,?…,?an of positive integers:I...
分类:其他好文   时间:2015-05-06 17:55:05    阅读次数:187
3314: [Usaco2013 Nov]Crowded Cows
3314: [Usaco2013 Nov]Crowded CowsTime Limit:1 SecMemory Limit:128 MBSubmit:111Solved:79[Submit][Status][Discuss]DescriptionFarmer John's N cows (1 y t...
分类:其他好文   时间:2015-05-05 23:51:00    阅读次数:166
E-Eating Together(POJ 3670)
Eating TogetherTime Limit:1000MSMemory Limit:65536KTotal Submissions:5579Accepted:2713DescriptionThe cows are so very silly about their dinner partner...
分类:其他好文   时间:2015-05-05 23:48:38    阅读次数:158
F-Dining Cows(POJ 3671)
Dining CowsTime Limit:1000MSMemory Limit:65536KTotal Submissions:7584Accepted:3201DescriptionThe cows are so very silly about their dinner partners. T...
分类:其他好文   时间:2015-05-05 23:39:51    阅读次数:203
Linux基础知识复习之命令篇
一.常用命令1.目录结构/bin:常用命令 /boot:启动程序 /dev:设备文件 /etc:启动,关闭,配置程序与文件 /home:用户工作根目录 /lib:共享连接库 /root:超级用户的工作目录 /sbin:系统管理员常用管理程序 /tmp:临时文件 /lost+found:系统出现异常时,用于保存部分资料 /misc:常用工具 /mnt:光驱,硬盘等的挂载点 /media:光驱的自动挂载...
分类:系统相关   时间:2015-05-05 14:26:32    阅读次数:250
A-Apple Catching(POJ 2385)
Apple CatchingTime Limit:1000MSMemory Limit:65536KTotal Submissions:8759Accepted:4264DescriptionIt is a little known fact that cows love apples. Farme...
分类:移动开发   时间:2015-05-04 20:08:35    阅读次数:152
H-The Cow Lineup(POJ 1989)
The Cow LineupTime Limit:1000MSMemory Limit:30000KTotal Submissions:5367Accepted:3196DescriptionFarmer John's N cows (1 #include #include #include #in...
分类:其他好文   时间:2015-05-04 19:52:28    阅读次数:124
POJ 题目3621 Sightseeing Cows(SPFA)
Sightseeing Cows Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8220   Accepted: 2757 Description Farmer John has decided to reward his cows for their hard ...
分类:其他好文   时间:2015-05-03 09:19:59    阅读次数:175
BZOJ2621 [Usaco2012 Mar]Cows in a Skyscraper
首先比较容易想到是状态压缩DP令$f[S]$表示选取了集合$S$以后,已经送了最少次数cnt且当前电梯剩下的体积rest最大(即$f[S]$是一个二元组(cnt, rest))于是$f[S] = min_{i \in S} f[S - {i}] + v[i]$$11 #include 12 13 ....
分类:其他好文   时间:2015-05-01 22:30:27    阅读次数:230
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