一道DP题, f[i,j,k] 表示 第 k 时刻 由 1 位置 变换 j 次 到达 当前 i 棵树 注意也要维护 变换 0 次的情况. var i,j,k,t,w,now:longint; tree:array[..,..] of longint; f:array[..,..,..] of longint; function max(a,b:longint):longint; begin if a>b then exit(a) else exit(b); end; begin readln(t…

dp dp( x , k ) = max( dp( x - 1 , k - 1 ) + *** , dp( x - 1 , k ) + *** ) *** = 0 or 1 ,根据情况 (BZOJ 1750双倍经验) ------------------------------------------------------------------------ #include<cstdio> #include<cstring> #include<algorithm>…

3384/1750: [Usaco2004 Nov]Apple Catching 接苹果 Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 18  Solved: 16[Submit][Status][Discuss] Description     很少有人知道奶牛爱吃苹果．农夫约翰的农场上有两棵苹果树(编号为1和2),每一棵树上都长满了苹果．奶牛贝茜无法摘下树上的苹果,所以她只能等待苹果从树上落下．但是,由于苹果掉到地上会摔烂,贝茜必须在半空中接住…

双倍经验题... -->1750 dp!! 3384: [Usaco2004 Nov]Apple Catching 接苹果 Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 61  Solved: 52[Submit][Status][Discuss] Description     很少有人知道奶牛爱吃苹果．农夫约翰的农场上有两棵苹果树(编号为1和2),每一棵树上都长满了苹果．奶牛贝茜无法摘下树上的苹果,所以她只能等待苹果从树上落下．但是,由于苹果掉…

bzoj3384[Usaco2004 Nov]Apple Catching 接苹果 bzoj1750[Usaco2005 qua]Apple Catching 题意: 两棵树,每分钟会从其中一棵树上掉一个苹果下来,捡苹果的人只愿意W次,问初始在树1处最多能捡多少苹果.分钟数≤1000,W≤30. 题解: dp.f[i][j][0/1]表示第i分钟移动了j次现在在第2/1棵树下.具体看代码. 代码: #include <cstdio> #include <cstring> #incl…

Apple Catching Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9978   Accepted: 4839 Description It is a little known fact that cows love apples. Farmer John has two apple trees (which are conveniently numbered 1 and 2) in his field, eac…

Apple Catching Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9831   Accepted: 4779 Description It is a little known fact that cows love apples. Farmer John has two apple trees (which are conveniently numbered 1 and 2) in his field, eac…

                                            $Apple~Catching$ Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 16248   Accepted: 8009 $Description$ It is a little known fact that cows love apples. Farmer John has two apple trees (which are…

Apple Catching Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 13447   Accepted: 6549 Description It is a little known fact that cows love apples. Farmer John has two apple trees (which are conveniently numbered 1 and 2) in his field, ea…

Apple Catching 直接翻译了 Descriptions 有两棵APP树,编号为1,2.每一秒,这两棵APP树中的其中一棵会掉一个APP.每一秒,你可以选择在当前APP树下接APP,或者迅速移动到另外一棵APP树下接APP(移动时间可以忽略不计),但由于却乏锻炼,你最多移动W次.问在T秒内,你最多能收集多少个APP.假设你开始站在1号APP树下. Input 第1行:两个整数T(1 < = T< = 1000)和W(1 < = W< = 30)第2..T+1行:1或2,代…