Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height =[2,1,5,6,2,3]. 思路:用动态规划. 法I:…

https://www.cnblogs.com/grandyang/p/4322653.html 1.存储一个单调递增的栈 2.如果你不加一个0进去,[1]这种情况就会输出结果0,而不是1 3.单调递增的栈,如果遇到比栈的top小的,就要计算一次.其实可以看到,这个top,从左向top是最大的,top向右也是最大的,所以只能乘以他自己. class Solution { public: int largestRectangleArea(vector<int>& heights) { s…

LeetCode 84. Largest Rectangle in Histogram 单调栈应用 leetcode+ 循环数组,求右边第一个大的数字 求一个数组中右边第一个比他大的数(单调栈 LeetCode--寻找数组中第三大的数…

一.题目说明 题目84. Largest Rectangle in Histogram,给定n个非负整数(每个柱子宽度为1)形成柱状图,求该图的最大面积.题目难度是Hard! 二.我的解答 这是一个 看起来容易,做起来很容易错的题目.我开始用的是"挖坑法",遗憾的是总是Time Limit Exceeded.经过10次优化,还是很难看. class Solution{ public: int largestRectangleArea(vector<int>& hei…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 单调栈 日期 题目地址: https://leetcode.com/problems/largest-rectangle-in-histogram/description/ 题目描述 Given n non-negative integers representing the histogram's bar height where the widt…

Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given heigh…

1. Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The large…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Problem: Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The…

原题 Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The large…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram.…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height =[2,1,5,6,2,3]. The largest r…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest…

问题描述: 84:直方图最大面积. 85:0,1矩阵最大全1子矩阵面积. 问题分析: 对于84,如果高度递增的话,那么OK没有问题,不断添加到栈里,最后一起算面积(当然,面积等于高度h * disPos,这里的高度取决于两个h的较小者,那么如果有序的话,只需要计算每一个最小值h,在用到当前位置与最小值h所在位置的差值,也就是柱子数目,就OK了).如果新h[i]的高度比之前的高度小的话,那么就可以认为之前所有比h[i]高的柱子都需要计算一下面积,然后对于破坏递增规则的h[i]会继续加入栈中.为甚会…

84. 柱状图中最大的矩形 84. Largest Rectangle in Histogram…

题目描述 给定 n 个非负整数,用来表示柱状图中各个柱子的高度.每个柱子彼此相邻,且宽度为 1 . 求在该柱状图中,能够勾勒出来的矩形的最大面积. 以上是柱状图的示例,其中每个柱子的宽度为 1,给定的高度为 [2,1,5,6,2,3]. 图中阴影部分为所能勾勒出的最大矩形面积,其面积为 10 个单位. 示例: 输入: [2,1,5,6,2,3] 输出: 10 解题思路 这道题跟LeetCode 11很相似,但是因为考虑柱子宽度,因此解题技巧不相同,此题考查单调栈的应用.我们首先在数组最后加入0,…

84. Largest Rectangle in Histogram 题目 Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, give…

For example, Given height = [2,1,5,6,2,3], return 10. 解题思路: 参考Problem H: Largest Rectangle in a Histogram第四种思路,或者翻译版Largest Rectangle in Histogram@LeetCode,JAVA实现如下: public int largestRectangleArea(int[] height) { Stack<Integer> stk = new Stack<I…

题目: Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given h…

Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given heigh…

84题和85五题 基本是一样的,先说84题 84--柱状图中最大的矩形( Largest Rectangle in Histogram) 思路很简单,通过循环,分别判断第 i 个柱子能够延展的长度len,最后把len*heights[i] 就是延展开的面积,最后做比对,得出最大. public int largestRectangleArea(int[] heights) { int ans=0; for(int i=0;i<heights.length;i++) { int len=1,lef…

Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given heigh…

作者:jostree 转载请注明出处 http://www.cnblogs.com/jostree/p/4052343.html 题目链接 leetcode Largest Rectangle in Histogram 单调栈 对于每一个长条都向前找包含这个长条的最大面积使可行的,但是时间复杂度是O(n^2)大数据会超时.经过观察发现并不需要对每一个长条都向前查找,对于height[i],如果height[i+1]>height[i],那么就没有必要向前查找,原因是可以从height[i]查找到…