Wooden Sticks Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice _ 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 process…

                                                   Wooden Sticks 题意:有一台机器处理木材,最开始需要一分钟准备,如果后面处理的木材比前面处理的木材更长更重,则不需要准备时间,否则需要分钟准备时间. 思路:按长度排序然后求重量的一个最长单减子序列就好了. struct node { int x,y; }a[N]; int b[N]; int cmp(node a,node b) { if(a.x!=b.x) return a.x<b…

给了n个(n<=5000)木棍的长度hi与宽度wi(均小于10000),现在机器要打磨这些木棍,如果相邻连个木棍hi<=hj并且wi<=wj就不需要调整机器,问如何排序使得机器调整的次数最少. [LIS]基本上和[这题]相同,但是那题中,如果hi=hj并且wi=wj长度会增加,而这道题则相反. 还是类似于那一题的思路: 假设wi>wj,如果hi>=hj,显然符合条件,答案不需要增加. 还是wi>wj,如果hi<hj,那么答案+1 假设wi=wj,如果hi>=…

题意:给定n个木棍的l和w,第一个木棍需要1min安装时间,若木棍(l’,w’)满足l' >= l, w' >= w,则不需要花费额外的安装时间,否则需要花费1min安装时间,求安装n个木棍的最少时间. 分析: 1.将木棍按l排序后,实质上是求按w形成的序列中的最长递减子序列. eg: 5 4 9 5 2 2 1 3 5 1 4 将木棍按l排序后,按w形成的序列为4 1 5 9 2, 则若按照4 5 9 1 2的顺序安装(按照木棍标号为1 3 4 2 5的顺序安装),只需两分钟. 容易发现,所…

嘤嘤嘤,实习半年多的小蒟蒻的第一篇博客(题解) 英文的: 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 m…

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…

Wooden Sticks Problem 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 machine in one by one fashion. It needs some time, called setup time, for…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 26095    Accepted Submission(s): 10554 Problem Description There is a pile of n wooden sticks. The length and weight of each stick a…

http://acm.hdu.edu.cn/showproblem.php?pid=1051 Problem 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 machine in one by one fashion. It needs s…

Problem 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 machine in one by one fashion. It needs some time, called setup time, for the machine to…