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[LeetCode] Search a 2D Matrix II
Search a 2D Matrix II 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 lef...
分类:其他好文   时间:2015-07-24 14:23:37    阅读次数:109
Search a 2D Matrix
Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l...
分类:其他好文   时间:2015-07-24 12:02:38    阅读次数:112
Spiral Matrix
问题描述Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix:[ ...
分类:其他好文   时间:2015-07-24 10:29:26    阅读次数:132
240 Search a 2D Matrix II
240 Search a 2D Matrix II这是个young‘s矩阵,最好的就是O(m+n)的算法了class Solution: # @param {integer[][]} matrix # @param {integer} target # @return {boole...
分类:其他好文   时间:2015-07-24 06:55:12    阅读次数:298
Leetcode 240 Search a 2D Matrix II (二分法和分治法解决有序二维数组查找)
1.问题描述  写一个高效的算法,从一个m×nm\times n的整数矩阵中查找出给定的值,矩阵具有如下特点:    每一行从左到右递增。 每一列从上到下递增。 2. 方法与思路2.1 二分查找法  根据矩阵的特征很容易想到二分法,但是这是一个二维的矩阵,如何将问题转化为一维是关键。实际上我们可以根据矩阵的第一列确定值可能所在的行的范围(limu,limd)(limu,limd),其中limu=0...
分类:编程语言   时间:2015-07-23 21:54:29    阅读次数:114
LeetCode "Search a 2D Matrix II"
A trickier binary search one.//////////////class Solution { int lower_bound_vert(vector>& m, int col, int i, int j, int target) { int...
分类:其他好文   时间:2015-07-23 15:34:14    阅读次数:110
Search a 2D Matrix II
问题描述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 sorte...
分类:其他好文   时间:2015-07-23 15:21:22    阅读次数:79
Maximal Square
Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area.For example, given the following matr...
分类:其他好文   时间:2015-07-23 13:40:49    阅读次数:95
leetcode 240: Search a 2D Matrix II
leetcode 240: Search a 2D Matrix II python java c++...
分类:其他好文   时间:2015-07-23 07:06:55    阅读次数:317
#leetcode#Search a 2D Matrix II
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 right.Integers in...
分类:其他好文   时间:2015-07-23 07:06:24    阅读次数:216
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