{ "data": { "question": { "questionId": "73", "questionFrontendId": "73", "categoryTitle": "Algorithms", "boundTopicId": 1671, "title": "Set Matrix Zeroes", "titleSlug": "set-matrix-zeroes", "content": "

Given an m x n integer matrix matrix, if an element is 0, set its entire row and column to 0's.

\n\n

You must do it in place.

\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: matrix = [[1,1,1],[1,0,1],[1,1,1]]\nOutput: [[1,0,1],[0,0,0],[1,0,1]]\n
\n\n

Example 2:

\n\"\"\n
\nInput: matrix = [[0,1,2,0],[3,4,5,2],[1,3,1,5]]\nOutput: [[0,0,0,0],[0,4,5,0],[0,3,1,0]]\n
\n\n

 

\n

Constraints:

\n\n\n\n

 

\n

Follow up:

\n\n\n", "translatedTitle": "矩阵置零", "translatedContent": "

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。

\n\n\n\n

 

\n\n

示例 1：

\n\"\"\n
\n输入：matrix = [[1,1,1],[1,0,1],[1,1,1]]\n输出：[[1,0,1],[0,0,0],[1,0,1]]\n
\n\n

示例 2：

\n\"\"\n
\n输入：matrix = [[0,1,2,0],[3,4,5,2],[1,3,1,5]]\n输出：[[0,0,0,0],[0,4,5,0],[0,3,1,0]]\n
\n\n

 

\n\n

提示：

\n\n\n\n

 

\n\n

进阶：

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What if you use some other integer value as your marker?\r\nThere is still a better approach for this problem with 0(1) space.", "We could have used 2 sets to keep a record of rows/columns which need to be set to zero. But for an O(1) space solution, you can use one of the rows and and one of the columns to keep track of this information.", "We can use the first cell of every row and column as a flag. This flag would determine whether a row or column has been set to zero." ], "solution": null, "status": null, "sampleTestCase": "[[1,1,1],[1,0,1],[1,1,1]]", "metaData": "{\n \"name\": \"setZeroes\",\n \"params\": [\n {\n \"name\": \"matrix\",\n \"type\": \"integer[][]\"\n }\n ],\n \"return\": {\n \"type\": \"void\"\n },\n \"output\": {\n \"paramindex\": 0\n },\n \"manual\": false\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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