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(每日算法)Leetcode --- Maximal Rectangle(最大子矩阵)
求在0-1矩阵中找出面积最大的全1矩阵 Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 首先,想使用遍历两次的暴力方法解决是不靠谱的,先打消这个念头。 这道题的解法灵感来自于 Larg...
分类:编程语言   时间:2014-12-25 22:07:52    阅读次数:259
LintCode-Maximum Subarray III
Given an array of integers and a number k, find k non-overlapping subarrays which have the largest sum.The number in each subarray should be contiguou...
分类:其他好文   时间:2014-12-25 09:55:31    阅读次数:235
LintCode-Maximum Subarray II
Given an array of integers, find two non-overlapping subarrays which have the largest sum.The number in each subarray should be contiguous.Return the ...
分类:其他好文   时间:2014-12-25 08:44:08    阅读次数:232
Interview-Largest independent set in binary tree.
BT(binary tree), want to find the LIS(largest independent set) of the BT. LIS: if the current node is in the set, then its children should not be in t...
分类:其他好文   时间:2014-12-24 08:40:08    阅读次数:120
objective C中继承、协议、分类和多态的实现
第一、objective C中继承的实现 在oc中只有实例变量会有权限控制,实例方法和类方法是没有权限控制的,这点与c++不同,OC默认的是protected,并且在声明权限控制时,没有分号 在OC中可以像C++一样用指针运算法来访问实例变量 Rectangle.h 文件代码: #import @interface Rectangle : NSObject {     in...
分类:其他好文   时间:2014-12-23 17:31:15    阅读次数:172
Winform 程序中DataGridView 控件添加行号
private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e) { Rectangle rectangle = new Rectangle(e.RowBounds.Loca...
分类:Windows程序   时间:2014-12-22 14:24:19    阅读次数:226
LeetCode: Maximum Subarray 解题报告
Maximum SubarrayFind the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array [...
分类:其他好文   时间:2014-12-20 20:51:21    阅读次数:386
AS3中BitmapData的draw()平移转换
要绘制对象的定位点不在图像的左上角时,draw需要平移转换var mc:MovieClip;var rect:Rectangle = mc.getBounds(mc);var bmd:BitmapData=new BitmapData(int(rect.width.toFixed()) ,int(r...
分类:其他好文   时间:2014-12-19 00:35:03    阅读次数:212
(每日算法)Leetcode -- Largest Rectangle in Histogram(最大实心矩形)
思路:如果时间复杂度要求是O(n 2 )的话,解法比较多也比较好理解。比如可以遍历,对于当前 i 位置上的立柱,计算出以这个i 立柱结尾的最大矩形,然后求出总的最大矩形。 Given  n  non-negative integers representing the histogram's bar height where the width of each bar is 1, f...
分类:编程语言   时间:2014-12-18 22:18:58    阅读次数:219
my first blog pages
Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater located within the...
分类:其他好文   时间:2014-12-17 17:44:05    阅读次数:148
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