Leetcode73. Set Matrix Zeroes矩阵置零

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Leetcode73. Set Matrix Zeroes矩阵置零

给定一个 m x n 的矩阵,如果一个元素为 0,则将其所在行和列的所有元素都设为 0.请使用原地算法. 示例 1: 输入: [ [1,1,1], [1,0,1], [1,1,1] ] 输出: [ [1,0,1], [0,0,0], [1,0,1] ] 示例 2: 输入: [ [0,1,2,0], [3,4,5,2], [1,3,1,5] ] 输出: [ [0,0,0,0], [0,4,5,0], [0,3,1,0] ] 进阶: 一个直接的解决方案…

073 Set Matrix Zeroes 矩阵置零

给定一个 m x n 的矩阵,如果一个元素为 0 ,则将这个元素所在的行和列都置零.你有没有使用额外的空间?使用 O(mn) 的空间不是一个好的解决方案.使用 O(m + n) 的空间有所改善,但仍不是最好的解决方案.你能设计一个使用恒定空间的解决方案吗?详见:https://leetcode.com/problems/set-matrix-zeroes/description/ Java实现: class Solution { public void setZeroes(int[][] mat…

[Leetcode] set matrix zeroes 矩阵置零

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did you use extra space?A straight forward solution using O(m n) space is probably a bad idea.A simple improvement uses…

[CareerCup] 1.7 Set Matrix Zeroes 矩阵赋零

1.7 Write an algorithm such that if an element in an MxN matrix is 0, its entire row and column are set to 0. LeetCode中的原题,请参见我之前的博客Set Matrix Zeroes 矩阵赋零.…

[LeetCode] 73. Set Matrix Zeroes 矩阵赋零

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place. Example 1: Input: [ [1,1,1], [1,0,1], [1,1,1] ] Output: [ [1,0,1], [0,0,0], [1,0,1] ] Example 2: Input: [ [0,1,2,0], [3,4,5,2], [1,3,1,5]…

[LeetCode] Set Matrix Zeroes 矩阵赋零

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did you use extra space?A straight forward solution using O(mn) space is probably a bad idea.A simple improvement uses O…