Program: malloc, free, pointer in C

int a[9] = {1, 2, 3, 4, 5, 6, 7, 8, 9};

int *ptra;

int b[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};

int *ptrb;

• ptra point to a newly allocated memory block with the same size as array a
• ptrb points to a newly allocated memory block with the same size as array b
• Loop: copy each element from array a to ptra such that ptra[8-i] == a[i]
• Loop: print each element of array a and ptra, verify the result
• Loop: Copy each element from array b to ptrb such that ptrb[j][i] == b[i][j]
• Loop: print each element of array b and ptrb, verify the result
• Deallocate the memory blocks pointed to by ptra and ptrb