终于开始写dp了,还很不熟练 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, each full of apples. Bessie cannot reach the apples when they are on the tree, so she must wait fo…

Apple Catching   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, each full of apples. Bessie cannot reach the apples when they are on the tree, so sh…

题目传送门 Apple Catching Apple Catching Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 15444   Accepted: 7582 Description It is a little known fact that cows love apples. Farmer John has two apple trees (which are conveniently numbered 1 an…

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…

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>…

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…

题意:2棵苹果树在T分钟内每分钟随机由某一棵苹果树掉下一个苹果,奶牛站在树#1下等着吃苹果,它最多愿意移动W次,问它最多能吃到几个苹果.思路:不妨按时间来思考,一给定时刻i,转移次数已知为j, 则它只能由两个状态转移而来.即上一时刻同一棵树或上一时刻不同的树    dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]);则这一时刻在转移次数为j的情况下最多能接到的苹果为那两个状态的最大值再加上当前能接受到的苹果.(注意当前能否拿到苹果只与转移次数有关)    if (j…

Day 5 笔记 dp动态规划 一.动态规划的基本思路 就是用一些子状态来算出全局状态. 特点: 无后效性--狗熊掰棒子,所以滚动什么的最好了 可以分解性--每个大的状态可以分解成较小的步骤完成 dp分为很多种,首先就是区间dp. 一.元素dp 1.例题2:入门 给定一个数,求这个数能最少被多少完全平方数加起来得到. #include <bits.stdc++.h> using namespace std; int count; inline void func(int num) { int…

dp动态规划分类详解 转自:http://blog.csdn.NET/cc_again/article/details/25866971 动态规划一直是ACM竞赛中的重点,同时又是难点,因为该算法时间效率高,代码量少,多元性强,主要考察思维能力.建模抽象能力.灵活度. ****************************************************************************************** 动态规划(英语:Dynamic programm…