$($ In C$++)$Write a program to help them analyze their data. Your program must contain parallel arrays: an array to store the names of the runners and a twodimensional array of five rows and seven columns to store the number of miles run by each runner each day. Furthermore, your program must contain at least the following functions:

a function to read and store the runners' names and the numbers of miles run each day;

a function to calculate the average number of miles run each day;

and a function to output the results. $($You may assume that the input data is stored in a file and each line of data is in the following form: runnerName milesDay$1$ milesDay$2$ milesDay$3$ milesDay$4$ milesDay$5$ milesDay$6$ milesDav$7.)$