Find Number of Joins in an Array

Row-Column Joins Medium · Topics · Company Tags · Hints You are given an m x n integer matrix grid. A pair of indices (i, j) where 0 <= i < m and 0 <= j < n is called a join if there exists an integer v such that: Every element in row i, except possibly grid[i][j], equals v. Every element in column j, except possibly grid[i][j], also equals v. Note that the element at the intersection, grid[i][j], may or may not be equal to v. Return the total number of joins in the matrix.…