Class Solution


  • public class Solution
    extends Object
    1738 - Find Kth Largest XOR Coordinate Value\. Medium You are given a 2D `matrix` of size `m x n`, consisting of non-negative integers. You are also given an integer `k`. 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)**. Find the kth largest value **(1-indexed)** of all the coordinates of `matrix`. **Example 1:** **Input:** matrix = \[\[5,2],[1,6]], k = 1 **Output:** 7 **Explanation:** The value of coordinate (0,1) is 5 XOR 2 = 7, which is the largest value. **Example 2:** **Input:** matrix = \[\[5,2],[1,6]], k = 2 **Output:** 5 **Explanation:** The value of coordinate (0,0) is 5 = 5, which is the 2nd largest value. **Example 3:** **Input:** matrix = \[\[5,2],[1,6]], k = 3 **Output:** 4 **Explanation:** The value of coordinate (1,0) is 5 XOR 1 = 4, which is the 3rd largest value. **Constraints:** * `m == matrix.length` * `n == matrix[i].length` * `1 <= m, n <= 1000` * 0 <= matrix[i][j] <= 106 * `1 <= k <= m * n`
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • kthLargestValue

        public int kthLargestValue​(int[][] matrix,
                                   int k)