Homework 3

Name your files hw03_<problem>.cpp. Email all files to my Helios account.

1. This purpose of this problem is to work with function overloading. You will write several versions of a function call find_min(), a function called get_input() and a function called print_min().
   • The first version of find_min() will take two integers and return the smaller integer. The corresponding version of get_input() will have two call-by-reference integer parameters and will prompt the user for two integers that will be returned via those parameters.
   • The second version will take two doubles and return the smaller double. The corresponding version of get_input() will have two call-by-reference double parameters and will prompt the user for two doubles.
   • The third version will take three integers and return the smallest integer. Its corresponding get_input() will have three call-by-reference parameters and will prompt the user for three integers.
   • The first version of print_min() will take an integer and print the message "The minimum is <value>.\n".
   • The second version of print_min() will take a double and print the message "The minimum is <value>.\n".
   From within main, call each version of get_input() and find_min() in turn and call print_min() with the result of find_min(). For example, you will call get_input() with two integers, find_min() with two integers and then print_min() with the result of find_min().
2. From the book, programming project 5.13 on page 296:

   The area of an arbitrary triangle can be computed using the formula area = sqrt( s(s - a)(s - b)(s - c) ), where a, b, and c are the lengths of the sides and s is the semiperimeter. s = (a + b + c)/2. Write a void function that uses five parameters: three value parameters that provide the lengths of the edges, and computes the area and perimeter (not the semiperimeter) via reference parameters. Make your function robust. Note that not all combinations of a, b, c produce a triangle. Your function should produce correct results for legal data and reasonable results for illegal combinations.