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POJ 2559 Largest Rectangle in a Histogram (单调栈或者dp)
Largest Rectangle in a HistogramTime Limit:1000MSMemory Limit:65536KTotal Submissions:15831Accepted:5121DescriptionA histogram is a polygon composed o...
分类:其他好文   时间:2015-04-08 14:54:27    阅读次数:181
CoreGraphics简单绘图
一、导入coreGraphics.framework二、绘制图形1、绘制矩形?123456789101112131415161718// 绘制矩形- (void)drawRectangle {// 定义矩形的rectCGRect rectangle = CGRectMake(100, 290, 12...
分类:其他好文   时间:2015-04-06 21:45:16    阅读次数:383
hdu 1506 Largest Rectangle in a Histogram(单调栈)
题意:给出n个宽度为1 高度为hi的长方形 问能圈出的最大长方形面积多大思路:http://blog.csdn.net/dgq8211/article/details/7740610#include#include#include#include#includeusing namespace ...
分类:其他好文   时间:2015-04-06 16:59:57    阅读次数:118
HDU1198水管并查集Farm Irrigation
Benny has a spacious farm land to irrigate. The farm land is a rectangle, and is divided into a lot of samll squares. Water pipes are placed in these ...
分类:其他好文   时间:2015-04-05 06:22:39    阅读次数:143
【万里征程——Windows App开发】绘制图形
Rectangle 我们开篇先介绍一个之前用过,也是比较简单的Rectangle。简单的矩形就只用定义长和宽了,但如果要有圆角的话呢,用RadiusX和RadiusY就好啦。那么RadiusX和RadiusY到底是什么呢?看看下图就知道啦。<Rectangle Fill="Yellow" Width="300" Height="200" Stroke="Blue"...
分类:移动开发   时间:2015-04-04 09:21:02    阅读次数:195
LeetCode --- 84. Largest Rectangle in Histogram
题目链接: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. ...
分类:其他好文   时间:2015-04-03 17:18:59    阅读次数:128
hdu 1506 Largest Rectangle in a Histogram (DP)
Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 12947    Accepted Submission(s): 3653 Problem Des...
分类:其他好文   时间:2015-04-03 15:28:51    阅读次数:158
leetcode解题报告: 85 Maximal Rectangle
问题描述:给定一个2维位矩阵,元素是0或者1。给出最大的全0矩阵大面积。
分类:其他好文   时间:2015-04-01 20:18:18    阅读次数:103
[LeetCode] Maximal Rectangle
Maximal Rectangle  Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 解题思路; 题意表示找到右全1形成的最大的矩形块。 解法1: 用动态规划做,若d[i][j]表示以matrix[...
分类:其他好文   时间:2015-03-31 22:15:43    阅读次数:159
HDU1506: Largest Rectangle in a Histogram(最大子矩阵,好题动态优化左右边界)
题目:http://acm.hdu.edu.cn/showproblem.php?pid=1506刚开始没考虑时间复杂度,直接敲了,直接tle了,之后没有思路,然后看题解,看见大神写的优化非常棒。大神的解释:(其实对于w[i]来说,如果去求后面连续的值,完全没必要一个个去比对,直接看w[i-1]的值...
分类:其他好文   时间:2015-03-31 19:39:33    阅读次数:143
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