C language interview question

1.   Write a program to accept two number from user and

a.   Find its sum.

b.   Find its Difference.

c.   Find its product.

d.   Find its average.

Note:

                                         i.    Solve above problem without using any function method

                   ii.    Test the program using different Integral data type signed/unsigned, long, float, char etc.

                                       iii.    First test the result using small values, and then test the result using large value.

                                      iv.    Repeat the above all same process using function method.