Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10873    Accepted Submission(s): 2969 Problem Description A histogram is a polygon composed of a sequence of rec…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11541    Accepted Submission(s): 3174 Problem Description A histogram is a polygon composed of a sequence of rect…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 12019    Accepted Submission(s): 3326 Problem Description A histogram is a polygon composed of a sequence of rec…

Problem Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows the histogram that consists of…

                                     Largest Rectangle in a Histogram 这么经典的题硬是等今天碰到了原题现场懵逼两小时才会去补题...废话不多说: 题意:截取一个矩形使其面积最大,随你怎么截,反正面积要最大.输出最大面积,注意爆int. 思路:dp或单调队列.核心思路是从一个小矩形往两边扩散,分别找两边第一个小于这个矩形的位置,其中面积就是这个小矩形与区间长度的乘积,我们预处理出所有的小矩形的这两个端点值,然后扫一遍即可更新到最…

目录 题目 思路 \(Code\) 题目 Largest Rectangle in a Histogram 思路 单调栈. 不知道怎么描述所以用样例讲一下. 7 2 1 4 5 1 3 3 最大矩形的高度一定是给你的高度中的一个. 我们枚举最大高度. 很明显以某一高度为高的矩形的左边界是该高度左边第一个比它矮的. 右边界类似. 我们可以用单调栈去维护每一个高度左右第一个比他矮的位置即可 \(Code\) #include<iostream> #include<cstring> #i…

Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows the histogram that consists of rectang…

近期情绪太不稳定了.可能是由于在找实习这个过程碰壁了吧.第一次面试就跪了,可能是我面的是一个新公司,制度不完好,我感觉整个面试过程全然不沾编程,我面试的还是软件开发-后来我同学面试的时候.说是有一道数学题了.最后都已经签了,orz...其它同学都陆续签了,有签了知乎.有签了猎豹的,有签了阿里的,我还在想着打比赛,作为一个快大四的人.我还想着打比赛.甚至我连队友都快没了-可是我还想坚持!到如今,我基本没课了,每天都仅仅能是刷刷题,写写python,搞搞shell,我都不知道我在干嘛-!有没有大神给…

单调栈的介绍及一些基本性质 http://blog.csdn.net/liujian20150808/article/details/50752861 依次把矩形塞进单调栈,保持其单增,矩形中的元素是一个三元组,存储其位置,高度,以及以其为高度的情况下,大矩形的左边界最多扩展到哪里. 每次将新的元素塞进栈的时候,其左边界就是其左侧第一个小于它的矩形的位置+1. 然后,每个矩形出栈的时候,记录其右边界为当前往栈里面塞的矩形的位置-1,然后更新答案即可. 注意最后把所有的矩形出栈,更新答案. #in…

单调栈裸题 如果矩形高度从左到右是依次递增,那我们枚举每个矩形高度,宽度拉到最优,计算最大面积即可 当有某个矩形比前一个矩形要矮的时候,这块面积的高度就不能大于他本身,所以之前的所有高于他的矩形多出来的部分都没用了,不会再计算第二次. 因此我们只需要用单调栈维护矩形高度即可,当有高度较低的矩形进栈时,先将之前比他高的每个矩形弹出,宽度累加,更新答案.然后我们要进栈的矩形的宽度也要变成之前累加的宽度+1,因为要保留有用部分.. 有个小技巧:为了方便程序,在末尾加一个高度为0的矩形 #include…

题意:http://acm.hdu.edu.cn/showproblem.php?pid=1506 如图,求最大的矩形面积 思路: 笛卡尔树:笛卡尔树是一棵二叉树,树的每个节点有两个值,一个为key,一个为value.光看key的话,笛卡尔树是一棵二叉搜索树,每个节点的左子树的key都比它小,右子树都比它大:光看value的话,笛卡尔树有点类似堆,根节点的value是最小(或者最大)的,每个节点的value都比它的子树要小(或者大). 笛卡尔树的构造算法:从右链插入,同时维护右链的递增或递减序列…

Die datenstruktur ist erataunlich! #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> #define R(a,b,c) for(register int a = (b); a <= (c); ++ a) #define nR(a,b,c) for(register in…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22968    Accepted Submission(s): 7175 Problem Description A histogram is a polygon composed of a sequence of rect…

Largest Rectangle in a Histogram Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 19782   Accepted: 6393 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal wi…

Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows the histogram that consists of rectang…

Largest Rectangle in a Histogram Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 16   Accepted Submission(s) : 6 Problem Description A histogram is a polygon composed of a sequence of rectangles…

传送门 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows the histogram that consists of rec…

Largest Rectangle in a Histogram HDU1506 一道DP题: 思路:http://blog.csdn.net/qiqijianglu/article/details/8556852 #include <stdio.h> #include <iostream> using namespace std; ]; ],r[]; int main() { int n,i,j; long long maxx,sum; while(~scanf("%d…

Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 18942   Accepted: 6083 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heigh…

2107: Largest Rectangle in a Histogram Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 777  Solved: 220 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may ha…

E - Largest Rectangle in a Histogram Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1506 Appoint description: Description A histogram is a polygon composed of a sequence of rectangles aligned a…

Largest Rectangle in a Histogram Problem Description: A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left sh…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11706    Accepted Submission(s): 3219 Problem Description A histogram is a polygon composed of a sequence of rec…

Largest Rectangle in a Histogram…

题目地址:http://poj.org/problem?id=2559 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows th…

http://poj.org/problem?id=2559 Largest Rectangle in a Histogram Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12297   Accepted: 3974 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base lin…

Largest Rectangle in a Histogram Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 15831   Accepted: 5121 Description A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal wi…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 15189    Accepted Submission(s): 4408 Problem Description A histogram is a polygon composed of a sequence of rect…

                                                                                                   Largest Rectangle in a Histogram       A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15013    Accepted Submission(s): 4357 Problem Description A histogram is a polygon composed of a sequence of rec…