how do i write this.Everything needed is up there?

In this program you will be reading sales information from a file and writing out a bar chart for each of the stores. The bar charts will be created by writing out a sequence of X characters. When reading data from a file you need to make sure you are checking for end of file properly. The general method shown in the Gaddis text book is ifstream inputFile; inputFile.open ("input.txt") int num if (inputFile) // the file opened successfully while (inputFile >>num) // process the num value cout num > num num2 as shown here while (inputFile >> numl >> num2)