Problem
1. Look up the man pages of getchar and putchar before using them in a program that converts an MSDOS file to UNIX.
2. Write a program to print the sizes of pointers to char, short, int, and float. What do you conclude from the output?
3. Use a function named sphere_calc in a program to return the surface area and volume of a sphere but not through the return statement. The radius of the sphere is accepted through user input.