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bzoj1616 [Usaco2008 Mar]Cow Travelling游荡的奶牛 [BFS]
Description奶牛们在被划分成N行M列(2 <= N <= 100; 2 <= M <= 100)的草地上游走,试图找到整块草地中最美味的牧草。Farmer John在某个时刻看见贝茜在位置 (R1, C1),恰好T (0 < T <= 15)秒后,FJ又在位置(R2, C2)与贝茜撞了正着。 FJ并不知道在这T秒内贝茜是否曾经到过(R2, C2),他能确定的只是,现在贝茜在那里。 设S为奶...
分类:其他好文   时间:2015-04-01 15:22:52    阅读次数:184
!POJ 3278 Catch That Cow--BFS(隐蔽的BFS)
题意:两个整数,N 和 M,N有三种变换:-1  ,+1 , *2 ,求N通过这三种变换变为M的最小的次数 分析:这题用BFS。 这题的问题主要是: 1.难以想到用BFS来做  知道用BFS之后就很快的写出来代码,但是还是出错了: 2.TLE。原因是没有标记出现过的数,广搜一定要记得标记 3.RE。  N的范围在0到1000000,要把N的范围限制在这里面 4.WA。有一种特殊情况 ...
分类:其他好文   时间:2015-04-01 09:37:23    阅读次数:127
hdu 2717 Catch That Cow
暴力搜索(广搜),注意要先判断再加入队列,否则会超内存 #include #include #include #include #define maxn 100000+5 using namespace std; int dir[2]={1,-1}; int vis[maxn]={0}; int n,m,re; int maxx; struct stu { int x,s; }; voi...
分类:其他好文   时间:2015-03-31 09:07:23    阅读次数:136
Sicily 13859. Farmer John has no Large Brown Cow
13859. Farmer John has no Large Brown Cow Constraints Time Limit: 1 secs, Memory Limit: 256 MB Description Farmer John likes to collect as many different types of cows as possible. I...
分类:其他好文   时间:2015-03-30 09:37:38    阅读次数:282
Sicily 13861. Pogo-Cow
13861. Pogo-Cow Constraints Time Limit: 1 secs, Memory Limit: 256 MB Description In an ill-conceived attempt to enhance the mobility of his prize cow Bessie, Farmer John has attached...
分类:其他好文   时间:2015-03-30 09:33:59    阅读次数:192
Sicily 9456. Clumsy Cows
9456. Clumsy Cows Constraints Time Limit: 1 secs, Memory Limit: 256 MB Description Bessie the cow is trying to type a balanced string of parentheses into her new laptop, but she is s...
分类:其他好文   时间:2015-03-30 09:22:36    阅读次数:179
Fliptile 开关问题 poj 3279
FliptileTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 4031Accepted: 1539DescriptionFarmer John knows that an intellectually satisfied cow i...
分类:其他好文   时间:2015-03-29 23:39:51    阅读次数:150
poj 3176 Cow Bowling(DP)
Cow BowlingTime Limit:1000MSMemory Limit:65536KTotal Submissions:14748Accepted:9804DescriptionThe cows don't use actual bowling balls when they go bow...
分类:其他好文   时间:2015-03-29 01:52:05    阅读次数:163
POJ 题目Catch That Cow(BFS)
Catch That Cow Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 52537   Accepted: 16471 Description Farmer John has been informed of the location of a fugitiv...
分类:其他好文   时间:2015-03-22 09:18:40    阅读次数:165
poj 3180 The Cow Prom 强连通分量
水题,直接贴代码。 //poj 3180 //sep9 #include #include using namespace std; const int maxN=10024; const int maxM=50048; int sum[maxN]; int head[maxN],dfn[maxN],low[maxN],ins[maxN],belong[maxN]; stack s; st...
分类:其他好文   时间:2015-03-22 09:14:36    阅读次数:102
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