{ "data": { "question": { "questionId": "1860", "questionFrontendId": "1738", "boundTopicId": null, "title": "Find Kth Largest XOR Coordinate Value", "titleSlug": "find-kth-largest-xor-coordinate-value", "content": "

You are given a 2D matrix of size m x n, consisting of non-negative integers. You are also given an integer k.

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The value of coordinate (a, b) of the matrix is the XOR of all matrix[i][j] where 0 <= i <= a < m and 0 <= j <= b < n (0-indexed).

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Find the kth largest value (1-indexed) of all the coordinates of matrix.

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Example 1:

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\nInput: matrix = [[5,2],[1,6]], k = 1\nOutput: 7\nExplanation: The value of coordinate (0,1) is 5 XOR 2 = 7, which is the largest value.\n
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Example 2:

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\nInput: matrix = [[5,2],[1,6]], k = 2\nOutput: 5\nExplanation: The value of coordinate (0,0) is 5 = 5, which is the 2nd largest value.\n
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Example 3:

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\nInput: matrix = [[5,2],[1,6]], k = 3\nOutput: 4\nExplanation: The value of coordinate (1,0) is 5 XOR 1 = 4, which is the 3rd largest value.
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Constraints:

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