C++

You will implement a program called "call_stats4.cpp" to process customer call records. You will read the records in a datafile into an array of call records, then process each call record in the array, and finally print the array of call records to a datafile. Remember, each customer call record contains seven fields, which are as follows: 1) a ten digit cell phone number (string, no dashes), 2) the number of relay stations used in making the call (integer), 3) the length of the call in minutes (integer), 4) the net cost of the call (double), 5) the tax rate (double), 6) the call tax (double) and 7) the total cost of the call (double). Your program will have 3 functions: Input, Process, and Output. Your main program will call each function once. Following are the descriptions of the functionality of each function:

1. The void function Input will have two parameters: the call record array called call_DB, and the count. call_DB, and count should be initialized in your main program. The global integer constant SIZE should be set to 200. count should be initialized to 0. The function will read the cell_number, relays, and call_length (in minutes) into the a call record in call_DB (call_DB[i] is an individual call record) from the input data file. Remember, count should be passed by reference.

2. The function Process will have two parameters: call_DB and count. The function "Process" will calculate the net cost of a call (net_cost), the tax on a call (call_tax) and the total cost of the call (total_cost) using the number of relay stations (relays) and the length in minutes of the call (call_length) for a call record. Please consider the following: a. The tax rate on a call (call_tax) is simply based on the number of relay stations (relays) used to make the call (0<= relays <=5 then tax_rate = 1%; 6<= relays <=11 then tax_rate = 3%; 12<= relays<=20 then tax_rate = 5%; 21<= relays <=50 then tax_rate = 8%; relays >50 then tax_rate =12%) . b. The net cost of a call is calculated by the following formula: net_cost = ( relays / 50 x 0.40 x call_length). c. The tax on a call is equal to net_cost x tax_rate (divide by 100 if tax rate was not converted into a decimal earlier). d. The total cost of a call (rounded to the nearest hundredth) is calculated by the following formula: total_cost = net_cost + call_tax . All tax and cost calculations should be rounded to the nearest hundredths. hint: call_DB[i].net_cost = (call_DB[i].relays/50.0)*0.40* (call_DB[i].call_length);

3. The function Output will have two parameters: call_DB and count. Note that call_DB and count will not change inside this function. Output will print every field of every call record stored in call_DB to the file weekly6_call_info.txt. The fields should be printed in the following order: 1) cell phone number, 2) number of relay stations, 3) length of the call in minutes, 4) net cost, 5) tax rate, 6) call tax, 7) total cost of call. See the sections below called "Input Stream" and "Format of Output" for more information. See the section Format of the input data file(input filename is "call_data.txt").

Format of the input data file(input filename is "call_data.txt"): Do not include column titles (The order of the columns are as follows: cell phone number, relays, minutes) 9546321555 0 0

5612971340 5 50

3051234567 8 25

7542346622 24 17

3054432762 15 30

9544321011 50 100

8776219988 87 82

9042224556 4 5

7877176590 11 1

5617278899 20 45

9546321555 4 3

5612971340 79 86

3051234567 8 25

7542346622 24 118

3054432762 115 25

9544321011 43 10

8776219988 265 22

9042224556 2 5

7877176590 89 67

5617278899 40 56