Leetcode 74. Search a 2D Matrix
题目链接：Search a 2D MatrixWrite an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:* Integers in each row are sorted from left to right.* The f....
LeetCode 304. Range Sum Query 2D - Immutable
DescriptionGiven a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2, col2).Range Sum Query 2DThe above re....
LeetCode 74. Search a 2D Matrix
DescriptionWrite an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:Integers in each row are sorted from left to right.The first integer of ....
从一道hard的leetcode到2d包围盒算法
前言大家好，哈哈哈最近国庆在家无聊比较boring，然后最近也在学习算法，之前我是从来没有做过hard的题目。想着胖虎来挑战下。然后这道题也比较有意思，我不是什么算法大佬，我只是觉得这篇很有意义。读完这篇文章你可以学到什么：空间中2d包围盒的概念 （boundingBox）包围盒如何判断是否相交多个包围盒如何如何联合一个大包围盒的这就是为什么我要去分享这道题的原因，因为无论在3d或者2d中，你去....
[LeetCode] Flatten 2D Vector 压平二维向量
Implement an iterator to flatten a 2d vector. For example, Given 2d vector = [ [1,2], [3], [4,5,6] ] By calling next repeatedly until hasNext returns false, the order of elements r...
[LeetCode] Search a 2D Matrix 搜索一个二维矩阵
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted from left to right. The f...
[LeetCode] Search a 2D Matrix II 搜索一个二维矩阵之二
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted in ascending from left to...
[LeetCode]--74. Search a 2D Matrix
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted from left to right. The first integer of each ro...
LeetCode 74 Search a 2D Matrix（搜索2D矩阵）
版权声明：转载请联系本人，感谢配合！本站地址：http://blog.csdn.net/nomasp https://blog.csdn.net/NoMasp/article/details/50776497 翻译 写一个高效算法用于在一个m x n的矩阵中查找一个值。 这个矩阵有如下属性： 每行的...
[LeetCode] Range Sum Query 2D - Immutable
Very similar to Range Sum Query - Immutable, but we now need to compute a 2d accunulated-sum. In fact, if you work in computer vision, you may know a name for such an array --- Integral Image. To sol....
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