Copying Books  Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so called scribers. The scriber had been given a book and after several months he finished its copy. O…

Copying Books Time Limit: 3000MS Memory Limit: 10000K Total Submissions: 7109 Accepted: 2221 Description Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so called scri…

意甲冠军:k手稿的部分成m部分,使每一个和最小 思路:典型最大值最小化问题,使用贪心+二分. 贪心的是每次尽量将元素往右边划分,二分查找最小的x满足m个连续的子序列和S(i)都不超过x. 由于输出的原因.在划分时就从后往前尽量划分. #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> using namespace std; typedef long lo…

题目连接:714 - Copying Books 题目大意:将一个个数为n的序列分割成m份,要求这m份中的每份中值(该份中的元素和)最大值最小, 输出切割方式,有多种情况输出使得越前面越小的情况. 解题思路:二分法求解f(x), f(x) < 0 说明不能满足, f(x) >= 0说明可以满足,f(x) 就是当前最大值为x的情况最少需要划分多少份-要求份数(如果f(x ) >= 0 说明符合要求而且还过于满足,即x还可以更小). 注意用long long . #include <s…

题目大意: 要抄N本书,编号为1,2,3...N, 每本书有1<=x<=10000000页, 把这些书分配给K个抄写员,要求分配给某个抄写员的那些书的编号必须是连续的.每个抄写员的速度是相同的,求所有书抄完所用的最少时间的分配方案. 题目中的要求是去求划分的子序列的最大值尽量小,最大值最小化,如果从划分的角度看,无法获得好的思路,我们可以从值得角度考虑,所要求的最小的最大值必定是从[amax,sum(总和)]中取得的,那么我们可以二分法的方式猜测一个数字,看它是否满足要求,如果满足要求,我们可…

好久不更新主要是怠惰了....还要加强训练. 题意分析与思路 注意到这样一句话: our goal is to minimize the maximum number of pages assigned to a single scriber. Your task is to find the optimal assignment. 这种最大化最小.最小化最大,显然是二分. 如何二分呢,枚举分成k份中各份的最大值,判断在$max_t$的情况下能否分成$\le k$份,能的话那么我们的$max_t…

题目链接: 传送门 Copying Books Time Limit: 3000MS     Memory Limit: 32768 KB Description Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so called scribers. The scriber had b…

Copying  Books 题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=85904#problem/B 题目: Description Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so calledscri…

题目链接: 题目 Copying Books Time limit: 3.000 seconds 问题描述 Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so called scribers. The scriber had been given a book and after s…

http://poj.org/problem?id=1505 Copying Books Time Limit: 3000MS   Memory Limit: 10000K Total Submissions: 7053   Accepted: 2200 Description Before the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be r…