"if necessary, create a new project named introductory20 project and save it in the cpp8\chap13 folder. also create a new source file named introductory20.cpp. write a program that displays the appropriate shipping charge based on the region code entered by the user. to be valid, the region code must contain exactly three characters: a letter (either a or b) followed by two numbers. the shipping charge for region a is $25. the shipping charge for region b is $30. display an appropriate message if the region code is invalid. use a sentinel value to end the program. save and then run the program. test the program using the following region codes: a11, b34, c7, d2a, a3n, c45, and 74tv."
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Category: art | Author: Torquil Vilhelm
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