Reference no: EM132154057
C PROGRAMMING
A local beauty store manager would like to host a VIP beauty event for their top 10 loyal customers. They have gathered some data about their loyal customers including email address, number of items purchased, and first name and last name. Need help in writing a program that read in data from a file, sort the customers by the number of items purchased, and write the top 10 (by the number of items) customers to the output file.
The input file has the following [email protected] 18 Jennifer [email protected] 38 Fajr Sanya
The list of top 10 customers should be written to the same file name as the input file name with "top10_" added at the beginning. For example, if the original file name is customers.txt, the output file name is then top10_customers.txt.
1. Read the data using fscanf function. To read the name (last item in a line), use "%[^n]n" as the conversion specifier for fscanf function.
2. Define a structure customer to store the email address (string), num_items (integer), and name (string). Assume the email address and name are no more than 100 characters.
3. Build an array of customer structures. Assume that there are no more than 200 loyal customers.
4. Modify the selection_sort function provided to sort an array of customers by the number of items purchased. The function's first parameter should be modified to struct customer list[].
5. The output file should include the list of top 10 customers in the same format as the input file but in sorted order by number of items purchased.