[POJ 2559]Largest Rectangle in a Histogram 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 s…

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…

题目链接:http://poj.org/problem?id=2559 思路:单调栈 什么是单调栈? 单调栈,顾名思义,就是单调的栈,也就是占中存的东西永远是单调(也就是递增或递减)的 如何实现一个单调栈呢?过程很简单.假设栈中已有了若干单调递增的元素,此时我们又有了一个元素,如果这个元素比栈顶元素大,则直接入栈:反之,不断弹出当前元素,直到栈顶元素比之前小为止.(这里实现的是一个单调递增栈,递减栈和递增栈的过程一样) 为什么这道题可以用单调栈? 假设矩形的高度从左到右递增,那么答案是多少?显而…

很显然是单调栈 这里记录一种新的写法,这种写法基于递推,但是相比之下比单调栈更好写 #include<cstdio> #include<map> #include<set> #include<queue> #include<string> #include<stack> #include<vector> #include<cstring> #include<iostream> #include<…

http://acm.hdu.edu.cn/showproblem.php?pid=1506  || http://poj.org/problem?id=2559 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 19316    Accepted Submission(s): 5829 Problem Description A hist…

给出一系列的1*h的矩形,求矩形的最大面积. 如图: 题解链接:点我 #include <iostream> #include <cstdio> using namespace std; ; struct Elem { int height; int count; }; Elem stack[N]; int top; int main() { int height, n; long long ans, tot, tmp; while (scanf("%d", &…

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: 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…

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 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…