Perform using C !

The registration number, name, surname and annual sales amount of the personnel (Max 20 personnel) working in a marketing company are recorded in the sales.dat file. According to the information in this file, write a program that prints to the difference.dat file how much more the others need to sell in order to catch the personnel with the highest sales amount.

513 AAA BBB 23 432 CCC DDD 34 sales.dat 543 YYY ZZZ 49 Highest sales : 50 wwwwwwwww 513 AAA BBB 27 432 CCC DDD 16 difference.dat 543 YYY ZZZ 1