Rewrite the programming example page 238 in chapter 4 ( cable company billing ). expected program and design: 1. write a pseudo code before starting your program ( you may not use switch, replace it with if structures ) 1.1 draw a flowchart for your program based on your pseudo code 2. identify your constants 3. your input will come from a text file of at least 15 customers 3.1 input file format - customertype accountnumber premiumchannels ( i. e residential example: r12345 5 , business example b12345 16 8 ) 4. precision should be two decimal places 5. calculate the running average for residential and business customer spending 6. print all customer's bill to a single file and the end of the file you should have the average summary for each customer type. 6.1 pay attention to details when you formatting your output note: use all chapter concepts and make your final as a true representation of what we have learned this semester. turn in program design ( pseudo code and/or flow chart ) input file output file .cpp file of your program ( make sure you include your header and comment your code ) extra credit implement your program using arrays, covered in chapter 8, and user defined simple data types to hold customer data.