colormixer

The colors red blueand yellow are known as the primary colors because they cannot be made by mixing other colors. When you mix two primary colors, you get a secondary color as shown here:

When you mix red and blue you get purple

When you mix red and yellow you get orange

When you mix blue and yellow you get green

Write a program that prompts a user to enter the names of two primary colors to mix, If the user enters  anything other than “red”, “blue”,or yellow”, the program should display an error message. Oterwise the program should display thename of the secondary color that results by mixing two primary colors.

This is  aC++ program and needs to be saved as a cpp file, can you help I  only have three and a half hours