{ "data": { "question": { "questionId": "2722", "questionFrontendId": "2614", "categoryTitle": "Algorithms", "boundTopicId": 2210872, "title": "Prime In Diagonal", "titleSlug": "prime-in-diagonal", "content": "

You are given a 0-indexed two-dimensional integer array nums.

\n\n

Return the largest prime number that lies on at least one of the diagonals of nums. In case, no prime is present on any of the diagonals, return 0.

\n\n

Note that:

\n\n\n\n

\"\"

\n\n

In the above diagram, one diagonal is [1,5,9] and another diagonal is [3,5,7].

\n\n

 

\n

Example 1:

\n\n
\nInput: nums = [[1,2,3],[5,6,7],[9,10,11]]\nOutput: 11\nExplanation: The numbers 1, 3, 6, 9, and 11 are the only numbers present on at least one of the diagonals. Since 11 is the largest prime, we return 11.\n
\n\n

Example 2:

\n\n
\nInput: nums = [[1,2,3],[5,17,7],[9,11,10]]\nOutput: 17\nExplanation: The numbers 1, 3, 9, 10, and 17 are all present on at least one of the diagonals. 17 is the largest prime, so we return 17.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "对角线上的质数", "translatedContent": "

给你一个下标从 0 开始的二维整数数组 nums 。

\n\n

返回位于 nums 至少一条 对角线 上的最大 质数 。如果任一对角线上均不存在质数，返回 0 。

\n\n

注意：

\n\n\n\n

\"\"

\n\n

在上图中，一条对角线是 [1,5,9] ，而另一条对角线是 [3,5,7] 。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：nums = [[1,2,3],[5,6,7],[9,10,11]]\n输出：11\n解释：数字 1、3、6、9 和 11 是所有 \"位于至少一条对角线上\" 的数字。由于 11 是最大的质数，故返回 11 。\n
\n\n

示例 2：

\n\n
\n输入：nums = [[1,2,3],[5,17,7],[9,11,10]]\n输出：17\n解释：数字 1、3、9、10 和 17 是所有满足\"位于至少一条对角线上\"的数字。由于 17 是最大的质数，故返回 17 。\n
\n\n

 

\n\n

提示：

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