摆木棍 题目大意:即使有一堆木棍,给一个特殊机器加工,木棍都有两个属性,一个是l一个是w,当机器启动的时候(加工第一根木棒的时候),需要一分钟,在这以后,设机器加工的上一根木棒的长度是l,质量是w,下一次加工的木棒长度为l`,质量为w`,当且仅当l`>=l且w`>=w时,机器不需要额外的时间,否则还需要一分钟重新启动,问你最短的加工时间? 下面介绍两个方法: 方法一,直接贪心法: 这个方法的原理是:因为我们总是想把更多的木棍按序排列,所以我们可以先把一个属性先排列了,再考虑另一个属性,那么这样…

参考链接:http://blog.csdn.net/xiaohuan1991/article/details/6956629 (HDU 1257 解题思路一样就不继续讲解) POJ 1065题意:给你n个木块,分别给出其长度和重量,然后要对这些木块进行加工,如果木块1的长度和重量都不大于木块2, 那么这两个木块可以放在一起加工,从而只用花费1个时间单位.问要如何进行加工从而能够花费最少时间单位. 知识点: 偏序集:若一个集合A为偏序集,那么满足:1.任意一个元素X属于集合,那么这个元素X≤X 2…

Wooden Sticks Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 16262 Accepted: 6748 Description There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking ma…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8899    Accepted Submission(s): 3630 [解题思路]初学贪心仅知道一些理论的知识,这题说是贪心自己也没啥感觉,做题的思路是在抛开贪心的概念然后按照自己的想法实现出来,实现之后想在思路中找到贪心的影子,只能看到每次都是找尽可能多的s…

There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine in one by one fashion. It needs some time, called setup time, for the machine to prepare processing…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9541    Accepted Submission(s): 3917 Problem Description There is a pile of n wooden sticks. The length and weight of each stick ar…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22000    Accepted Submission(s): 8851 Problem Description There is a pile of n wooden sticks. The length and weight of each stick ar…

◇例题·IV◇ Wooden Sticks 借鉴了一下 Candy? 大佬的思路 +传送门+ (=^-ω-^=) 来源:+POJ 1065+ ◆ 题目大意 有n个木棍以及一台处理木棍的机器.第i个木棍用二元组 (li,wi) 表示,li 为它的长度,wi 为它的重量. 机器可以连续处理木棍{a[1],a[2]...a[m]}当且仅当对于每一个i(1≤i<m) la[i]<la[i+1] 且 wa[i]<wa[i+1] .机器连续处理木棍的时间是1单位.你需要将这些木棍按一定顺序在机器中处…

Wooden Sticks. win the wooden spoon:成为末名. 题目地址:http://poj.org/problem?id=1065 There is a pile of n wooden sticks. a woodworking machine:木工机器. setup time:启动时间. my codes: #include<iostream> #include<cstdio> #include<cstring> #include<al…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11627    Accepted Submission(s): 4807 Problem Description There is a pile of n wooden sticks. The length and weight of each stick a…