Given N axis-aligned rectangles where N > 0, determine if they all together form an exact cover of a rectangular region. Each rectangle is represented as a bottom-left point and a top-right point. For example, a unit square is represented as [1,1,2,2
Find the total area covered by two rectilinear rectangles in a2D plane. Each rectangle is defined by its bottom left corner and top right corner as shown in the figure. Assume that the total area is never beyond the maximum possible value of int. Cre
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 此题是之前那道的Largest Rectangle in Histogram 直方图中最大的矩形 的扩展,这道题的二维矩阵每一层向上都可以看做一个直方图,输入矩阵有多少行,就可以形成多少个直方图,对每个直方图都调用Largest Rectangle in Hist
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
代码: - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. self.title=@"圆角矩形"; UIImageView *imageView=[[UIImageView alloc]initWithFrame:CGRectMake(50, 100, 100, 100)]; imageView.backgroundColor=[UIColor red