A grocery store stores their daily sales in file named sales. txt. the file contains the sales for of week (7 days). Each line represents the sales of a day. The first column is the day of the week, the
second column is the total sales of the day, the last column is the name of the salesperson on that
day.
Write a program that reads the data from the file, then prints the following information:
(a) total sales of the week.
(b) The data of the day with highest sales (day, sales, salesperson).
*no arrays required.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation: