sub-matrix with all 1s. We initialize another matrix (dp) with the same dimensions as the original one initialized with all 0's. dp_array(i,j) represents the side length of the maximum square whose ...
A matrix multiplied with its inverse gives the identity matrix. This function finds the inverse of a 2x2 and 3x3 matrix. If the determinant of a matrix is 0, its inverse does not exist.