rotate.matrix[0][0] = cos + x * x * C; rotate.matrix[0][1] = x * y * C - z * sin; rotate.matrix[0][2] = x * z * C + y * sin; rotate.matrix[0][3] = 0; rotate.matrix[1 ...

// Given an m x n binary matrix mat, return the distance of the nearest 0 for each cell. // The distance between two adjacent cells is 1.