int** mat = new int*[5];
// define the elements to be inserted to the matrix
int* i1 = new int;
*i1 = 1;
int* i2 = new int;
*i2 = 2;
int* i3 = new int;
*i3 = 3;
int* i4 = new int;
*i4 = 4;
int* i5 = new int;
*i5 = 5;
// insert the elements to the matrix
mat[0] = i1;
mat[1] = i2;
mat[2] =